Re: [PHP] substr?
I'l post where ever I want in my own thread Master Brown :P Maybe just to confuse people even more, I should rot_13 this e-mail :P On Jun 20, 2008, at 2:21 PM, Daniel Brown wrote: Don't top post! >:-o On Fri, Jun 20, 2008 at 7:44 AM, Jason Pruim <[EMAIL PROTECTED]> wrote: One of theses days I will ;) There's only one 's' in 'these'. It was also posted before 8 AM on a friday a week ago :P Slow to respond much? :P But when you know a tool that will work and it's a simple little form that's only going to be used by a few people occasionally until this business takes off and I need to upgrade stuff... explode() works just fine :P Prune, on a serious note, don't ever settle for that, because that means you're going to be coding that at least twice. Always do a better job than you need to do. I'm working on it... :) Still at the point of "Program it and get it working so the boss will authorize you to work on it, and then reprogram later to be better". I'll look more into substr to increase my knowledge though :) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
At 2:21 PM -0400 6/20/08, Daniel Brown wrote: On Fri, Jun 20, 2008 at 7:44 AM, Jason Pruim <[EMAIL PROTECTED]> wrote: One of theses days I will ;) There's only one 's' in 'these'. Grammar police alert! Always do a better job than you need to do. I agree with that -- however -- if you do, you'll always stay where you are. You never get into management until you find a way to screw-up consistently. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
Don't top post! >:-o On Fri, Jun 20, 2008 at 7:44 AM, Jason Pruim <[EMAIL PROTECTED]> wrote: > One of theses days I will ;) There's only one 's' in 'these'. > But when you know a tool that will work and it's a simple little form that's > only going to be used by a few people occasionally until this business takes > off and I need to upgrade stuff... explode() works just fine :P Prune, on a serious note, don't ever settle for that, because that means you're going to be coding that at least twice. Always do a better job than you need to do. -- Dedicated Servers - Intel 2.4GHz w/2TB bandwidth/mo. starting at just $59.99/mo. with no contract! Dedicated servers, VPS, and hosting from $2.50/mo. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
One of theses days I will ;)
But when you know a tool that will work and it's a simple little form
that's only going to be used by a few people occasionally until this
business takes off and I need to upgrade stuff... explode() works just
fine :P
On Jun 19, 2008, at 6:18 PM, Philip Thompson wrote:
RTFM: http://www.php.net/strrpos Hehe =D
"Find position of last occurrence of a char in a string"
This avoids the extension containing multiple '.'s.
~Phil
On Jun 19, 2008, at 1:02 PM, Jason Pruim wrote:
Know what I found that works most reliably though?
$filenameExploded = explode(".", $filename);
that way, if I have a file like this:
filename.todaysdate.todaystime.extension I don't end up with the
extension being: .todaysdate.todaystime.extension :) Unless I was
using the substr() command wrong.
On Jun 19, 2008, at 1:53 PM, Philip Thompson wrote:
Does that get a different result than mine?
~Phil
On Jun 19, 2008, at 10:44 AM, Daniel Brown wrote:
Try this:
echo substr($filename,(strrpos($filename,'.') +
1),strlen($filename))."\n";
?>
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www.raoset.com
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billion years of space drift in to the calculations, so PHP's rand
function has been great for me..." ~S. Johnson
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Re: [PHP] substr?
RTFM: http://www.php.net/strrpos Hehe =D
"Find position of last occurrence of a char in a string"
This avoids the extension containing multiple '.'s.
~Phil
On Jun 19, 2008, at 1:02 PM, Jason Pruim wrote:
Know what I found that works most reliably though?
$filenameExploded = explode(".", $filename);
that way, if I have a file like this:
filename.todaysdate.todaystime.extension I don't end up with the
extension being: .todaysdate.todaystime.extension :) Unless I was
using the substr() command wrong.
On Jun 19, 2008, at 1:53 PM, Philip Thompson wrote:
Does that get a different result than mine?
~Phil
On Jun 19, 2008, at 10:44 AM, Daniel Brown wrote:
Try this:
echo substr($filename,(strrpos($filename,'.') +
1),strlen($filename))."\n";
?>
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Raoset Inc.
Technology Manager
MQC Specialist
11287 James St
Holland, MI 49424
www.raoset.com
[EMAIL PROTECTED]
"Personally, most of my web applications do not have to factor 13.7
billion years of space drift in to the calculations, so PHP's rand
function has been great for me..." ~S. Johnson
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Re: [PHP] substr?
On Thu, Jun 19, 2008 at 1:53 PM, Philip Thompson <[EMAIL PROTECTED]> wrote: > Does that get a different result than mine? Sorry, Phil, I hadn't even been paying much attention to the thread, and saw that it just kept going, so I sent in a suggestion. Both of our things do the exact same thing, but you're is shorter and you said it quicker. ;-P -- Dedicated Servers - Intel 2.4GHz w/2TB bandwidth/mo. starting at just $59.99/mo. with no contract! Dedicated servers, VPS, and hosting from $2.50/mo. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
Know what I found that works most reliably though?
$filenameExploded = explode(".", $filename);
that way, if I have a file like this:
filename.todaysdate.todaystime.extension I don't end up with the
extension being: .todaysdate.todaystime.extension :) Unless I was
using the substr() command wrong.
On Jun 19, 2008, at 1:53 PM, Philip Thompson wrote:
Does that get a different result than mine?
~Phil
On Jun 19, 2008, at 10:44 AM, Daniel Brown wrote:
Try this:
echo substr($filename,(strrpos($filename,'.') +
1),strlen($filename))."\n";
?>
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Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
11287 James St
Holland, MI 49424
www.raoset.com
[EMAIL PROTECTED]
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Re: [PHP] substr?
Does that get a different result than mine? ~Phil On Jun 19, 2008, at 10:44 AM, Daniel Brown wrote: Try this: echo substr($filename,(strrpos($filename,'.') + 1),strlen($filename))."\n"; ?> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
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Re: [PHP] substr?
On Jun 17, 2008, at 8:01 AM, Dan Shirah wrote:
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of
the file
(including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is
a .zip or
a .pdf etc. file. This is working for small files (under a few
megs) but for
some reason it fails when I get bigger. I have increased the
allowed memory
size to 50 MB's I'm testing with a 44 MB file right now.
I'm not an expert on pulling in and reading files, but if all you
want is
the last three characters of a file name, couldn't you just do
something
like:
$extension = substr($filename, -3);
What about file extensions that are not 3 characters in length? This
should be updated to:
Sorry, I know this doesn't contribute to the original problem, but it
does address another... ;)
~Philip
if ($extension = "pdf" || $extension = "zip") {
echo "The file is a PDF or ZIP.";
} else {
echo "Incorrect file type.";
}
??
Or maybe you are saying you want it to perform this check while the
user is
attempting to upload the file and not after it has been uploaded?
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Re: [PHP] substr?
Jim Lucas wrote:
Peter Ford wrote:
Frank Arensmeier wrote:
17 jun 2008 kl. 22.14 skrev Jim Lucas:
Jason Pruim wrote:
Hi everyone,
I am attempting to adopt some code to work more reliably then how
it is now...
What I am doing is coding a upload form where people could be
uploading .zip files in excess of 200 MB... Yes I know that is
large, but it's for a print shop and they get HUGE files to print
from.
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of the
file (including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is a
.zip or a .pdf etc. file. This is working for small files (under a
few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44
MB file right now.
When it fails, it says the file type is not allowed even though it
is listed in the file type array.
Hopefully I have given you enough to go on to at least ask me some
questions :)
--
Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
www.raoset.com
[EMAIL PROTECTED]
Looking at what I think you are trying to do, how about this?
I am somewhat surprised that all code suggestions are rather
complicated in my opinion. What is wrong with 'pathinfo'?
if ( !isset( $_FILES['userfile']['name'] ) ) {
echo "No file has been uploaded";
} else {
$allowed_extensions = array( "zip", "pdf", "ai", "html" );
$file_info = pathinfo( $_FILES['userfile']['name'] );
if ( in_array( strtolower( $file_info['extension'] ),
$allowed_extensions ) ) {
echo "File has a valid extension";
} else {
// do something else
}
}
// frank
Two points here:
Firstyl, as someone has already indicated, the file will be uploaded
before the PHP script runs, so the end user will have to wait for his
junk to get through the internet before (s)he is told it is junk. Is
that what you want?
Secondly, using the file extension to determine file type is a very
poor idea and open to abuse. If you have the file (which you do, 'cos
it's been uploaded before your script runs) then you should do a bit
more checking before accepting it. The Unix/Linux "file" command can
help here. Not perfect, but still...
You could also Virus-scan the file before accepting it. All depends on
whether your customer is prepared to wait while you clear his upload.
Cheers
Pete
I think that you have the wrong person here. That was a different
thread/person talking about preventing DoS'ing attacks. Not Jason.
D'oh! I'm sure I responded to the other thread.
I'm a bit young for 'Senior moments' yet...
--
Peter Ford phone: 01580 89
Developer fax: 01580 893399
Justcroft International Ltd., Staplehurst, Kent
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Re: [PHP] substr?
Peter Ford wrote:
Frank Arensmeier wrote:
17 jun 2008 kl. 22.14 skrev Jim Lucas:
Jason Pruim wrote:
Hi everyone,
I am attempting to adopt some code to work more reliably then how it
is now...
What I am doing is coding a upload form where people could be
uploading .zip files in excess of 200 MB... Yes I know that is
large, but it's for a print shop and they get HUGE files to print from.
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of the
file (including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is a
.zip or a .pdf etc. file. This is working for small files (under a
few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44
MB file right now.
When it fails, it says the file type is not allowed even though it
is listed in the file type array.
Hopefully I have given you enough to go on to at least ask me some
questions :)
--
Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
www.raoset.com
[EMAIL PROTECTED]
Looking at what I think you are trying to do, how about this?
I am somewhat surprised that all code suggestions are rather
complicated in my opinion. What is wrong with 'pathinfo'?
if ( !isset( $_FILES['userfile']['name'] ) ) {
echo "No file has been uploaded";
} else {
$allowed_extensions = array( "zip", "pdf", "ai", "html" );
$file_info = pathinfo( $_FILES['userfile']['name'] );
if ( in_array( strtolower( $file_info['extension'] ),
$allowed_extensions ) ) {
echo "File has a valid extension";
} else {
// do something else
}
}
// frank
Two points here:
Firstyl, as someone has already indicated, the file will be uploaded
before the PHP script runs, so the end user will have to wait for his
junk to get through the internet before (s)he is told it is junk. Is
that what you want?
Secondly, using the file extension to determine file type is a very poor
idea and open to abuse. If you have the file (which you do, 'cos it's
been uploaded before your script runs) then you should do a bit more
checking before accepting it. The Unix/Linux "file" command can help
here. Not perfect, but still...
You could also Virus-scan the file before accepting it. All depends on
whether your customer is prepared to wait while you clear his upload.
Cheers
Pete
I think that you have the wrong person here. That was a different thread/person
talking about preventing DoS'ing attacks. Not Jason.
--
Jim Lucas
"Some men are born to greatness, some achieve greatness,
and some have greatness thrust upon them."
Twelfth Night, Act II, Scene V
by William Shakespeare
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Re: [PHP] substr?
Frank Arensmeier wrote:
17 jun 2008 kl. 22.14 skrev Jim Lucas:
Jason Pruim wrote:
Hi everyone,
I am attempting to adopt some code to work more reliably then how it
is now...
What I am doing is coding a upload form where people could be
uploading .zip files in excess of 200 MB... Yes I know that is large,
but it's for a print shop and they get HUGE files to print from.
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of the
file (including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is a
.zip or a .pdf etc. file. This is working for small files (under a
few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44 MB
file right now.
When it fails, it says the file type is not allowed even though it is
listed in the file type array.
Hopefully I have given you enough to go on to at least ask me some
questions :)
--
Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
www.raoset.com
[EMAIL PROTECTED]
Looking at what I think you are trying to do, how about this?
I am somewhat surprised that all code suggestions are rather complicated
in my opinion. What is wrong with 'pathinfo'?
if ( !isset( $_FILES['userfile']['name'] ) ) {
echo "No file has been uploaded";
} else {
$allowed_extensions = array( "zip", "pdf", "ai", "html" );
$file_info = pathinfo( $_FILES['userfile']['name'] );
if ( in_array( strtolower( $file_info['extension'] ),
$allowed_extensions ) ) {
echo "File has a valid extension";
} else {
// do something else
}
}
// frank
Two points here:
Firstyl, as someone has already indicated, the file will be uploaded before the
PHP script runs, so the end user will have to wait for his junk to get through
the internet before (s)he is told it is junk. Is that what you want?
Secondly, using the file extension to determine file type is a very poor idea
and open to abuse. If you have the file (which you do, 'cos it's been uploaded
before your script runs) then you should do a bit more checking before accepting
it. The Unix/Linux "file" command can help here. Not perfect, but still...
You could also Virus-scan the file before accepting it. All depends on whether
your customer is prepared to wait while you clear his upload.
Cheers
Pete
--
Peter Ford phone: 01580 89
Developer fax: 01580 893399
Justcroft International Ltd., Staplehurst, Kent
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Re: [PHP] substr?
17 jun 2008 kl. 22.14 skrev Jim Lucas:
Jason Pruim wrote:
Hi everyone,
I am attempting to adopt some code to work more reliably then how
it is now...
What I am doing is coding a upload form where people could be
uploading .zip files in excess of 200 MB... Yes I know that is
large, but it's for a print shop and they get HUGE files to print
from.
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of
the file (including file extension).
$ext = substr($filename, strpos($filename,'.'), strlen
($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is
a .zip or a .pdf etc. file. This is working for small files (under
a few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44
MB file right now.
When it fails, it says the file type is not allowed even though it
is listed in the file type array.
Hopefully I have given you enough to go on to at least ask me some
questions :)
--
Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
www.raoset.com
[EMAIL PROTECTED]
Looking at what I think you are trying to do, how about this?
I am somewhat surprised that all code suggestions are rather
complicated in my opinion. What is wrong with 'pathinfo'?
if ( !isset( $_FILES['userfile']['name'] ) ) {
echo "No file has been uploaded";
} else {
$allowed_extensions = array( "zip", "pdf", "ai", "html" );
$file_info = pathinfo( $_FILES['userfile']['name'] );
if ( in_array( strtolower( $file_info['extension'] ),
$allowed_extensions ) ) {
echo "File has a valid extension";
} else {
// do something else
}
}
// frank
--
Jim Lucas
"Some men are born to greatness, some achieve greatness,
and some have greatness thrust upon them."
Twelfth Night, Act II, Scene V
by William Shakespeare
--
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Re: [PHP] substr?
Jason Pruim wrote: Hi everyone, I am attempting to adopt some code to work more reliably then how it is now... What I am doing is coding a upload form where people could be uploading .zip files in excess of 200 MB... Yes I know that is large, but it's for a print shop and they get HUGE files to print from. The code I'm having issues with is this: $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension). $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename. All I want to do is grab the file extension and verify that it is a .zip or a .pdf etc. file. This is working for small files (under a few megs) but for some reason it fails when I get bigger. I have increased the allowed memory size to 50 MB's I'm testing with a 44 MB file right now. When it fails, it says the file type is not allowed even though it is listed in the file type array. Hopefully I have given you enough to go on to at least ask me some questions :) -- Jason Pruim Raoset Inc. Technology Manager MQC Specialist 3251 132nd ave Holland, MI, 49424-9337 www.raoset.com [EMAIL PROTECTED] Looking at what I think you are trying to do, how about this? -- Jim Lucas "Some men are born to greatness, some achieve greatness, and some have greatness thrust upon them." Twelfth Night, Act II, Scene V by William Shakespeare -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
On Tue, Jun 17, 2008 at 8:39 AM, Jason Pruim <[EMAIL PROTECTED]> wrote: > Hi everyone, > > I am attempting to adopt some code to work more reliably then how it is > now... > > What I am doing is coding a upload form where people could be uploading .zip > files in excess of 200 MB... Yes I know that is large, but it's for a print > shop and they get HUGE files to print from. [snip!] Tweak this to meet your needs. All .htaccess settings are PHP_INI_ALL or PHP_INI_PERDIR in modern PHP's. # In your .htaccess php_flag max_execution_time 300 php_flag max_input_time 300 php_flag memory_limit 64M php_flag post_max_size 256M php_flag upload_max_filesize 256M -- Dedicated Servers - Intel 2.4GHz w/2TB bandwidth/mo. starting at just $59.99/mo. with no contract! Dedicated servers, VPS, and hosting from $2.50/mo. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
At 9:01 AM -0400 6/17/08, Dan Shirah wrote:
>
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of the file
(including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is a .zip or
a .pdf etc. file. This is working for small files (under a few megs) but for
some reason it fails when I get bigger. I have increased the allowed memory
size to 50 MB's I'm testing with a 44 MB file right now.
I'm not an expert on pulling in and reading files, but if all you want is
the last three characters of a file name, couldn't you just do something
like:
$extension = substr($filename, -3);
if ($extension = "pdf" || $extension = "zip") {
echo "The file is a PDF or ZIP.";
} else {
echo "Incorrect file type.";
}
??
Or maybe you are saying you want it to perform this check while the user is
attempting to upload the file and not after it has been uploaded?
if ($extension == "pdf" || $extension == "zip")
tedd
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Re: [PHP] substr?
On 17 Jun 2008, at 14:04, Jason Pruim wrote:
On Jun 17, 2008, at 9:01 AM, Dan Shirah wrote:
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of
the file (including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is
a .zip or a .pdf etc. file. This is working for small files (under
a few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44
MB file right now.
I'm not an expert on pulling in and reading files, but if all you
want is the last three characters of a file name, couldn't you just
do something like:
$extension = substr($filename, -3);
if ($extension = "pdf" || $extension = "zip") {
echo "The file is a PDF or ZIP.";
} else {
echo "Incorrect file type.";
}
??
Or maybe you are saying you want it to perform this check while the
user is attempting to upload the file and not after it has been
uploaded?
I am looking to use this as a simple test prior to the upload
beginning... IE, if it's not a .zip file, don't try and upload 250MB
files :)
That code will not be executed until the file has been uploaded. Such
is the nature of the beast.
If you really need to do this your best bet is to use a client-side
uploader.
-Stut
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Re: [PHP] substr?
On 17 Jun 2008, at 14:05, Jason Pruim wrote: On Jun 17, 2008, at 8:46 AM, Stut wrote: On 17 Jun 2008, at 13:39, Jason Pruim wrote: I am attempting to adopt some code to work more reliably then how it is now... What I am doing is coding a upload form where people could be uploading .zip files in excess of 200 MB... Yes I know that is large, but it's for a print shop and they get HUGE files to print from. The code I'm having issues with is this: $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension). $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename. All I want to do is grab the file extension and verify that it is a .zip or a .pdf etc. file. This is working for small files (under a few megs) but for some reason it fails when I get bigger. I have increased the allowed memory size to 50 MB's I'm testing with a 44 MB file right now. When it fails, it says the file type is not allowed even though it is listed in the file type array. Hopefully I have given you enough to go on to at least ask me some questions :) Sounds like you haven't increased upload_max_filesize in php.ini. If you actually look at what's in $_FILES['userfile'] you'll see most of it's empty. I suggest you add some more error checking rather than assuming everything worked ok. Hey Stut, I'm looking into that now, i just increased the php.ini upload_max_filesize to 250M and tried uploading a 44MB file and it failed... I'll try and add some more error checking, but I'm really leaning towards the problem being in the code I posted... But please, prove me wrong! :) Did you restart the web server after changing it? Are you sure you're editing the right php.ini? There's nothing wrong with our code that I can see. On an efficiency note you don't need the last parameter to substr - if it's omitted it defaults to the remaining test. I would suggest doing a var_dump on $_FILES['userfile'] before the code you've posted to check it contains the right stuff. If not then it's the upload that's failing and nothing in your code. -Stut -- http://stut.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
Jason,
If you don't expressly need it to run server side, you could always use a
simple little javascript check if you want.
*
function checkFileType() {
// for mac/linux, else assume windows
if (navigator.appVersion.indexOf('Mac') != -1 ||
navigator.appVersion.indexOf('Linux') != -1)
var fileSplit = '/';
else
var fileSplit = '\\';
var fileTypes = new Array('.zip', '.ZIP', '.jpg', '.JPG'); // valid
filetypes
var fileName = document.getElementById('UploadFile').value; //
current value in your file upload box
var extension = fileName.substr(fileName.lastIndexOf('.'),
fileName.length);
var valid = 0;
for(var i in fileTypes) {
if(fileTypes[i] == extension) {
valid = 1;
break;
}
}
if(valid == 1)
alert("The file to be uploaded is a PDF or ZIP file!");
else
alert("Invalid file type!"); *
*}*
**
Re: [PHP] substr?
On Jun 17, 2008, at 8:46 AM, Stut wrote: On 17 Jun 2008, at 13:39, Jason Pruim wrote: I am attempting to adopt some code to work more reliably then how it is now... What I am doing is coding a upload form where people could be uploading .zip files in excess of 200 MB... Yes I know that is large, but it's for a print shop and they get HUGE files to print from. The code I'm having issues with is this: $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension). $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename. All I want to do is grab the file extension and verify that it is a .zip or a .pdf etc. file. This is working for small files (under a few megs) but for some reason it fails when I get bigger. I have increased the allowed memory size to 50 MB's I'm testing with a 44 MB file right now. When it fails, it says the file type is not allowed even though it is listed in the file type array. Hopefully I have given you enough to go on to at least ask me some questions :) Sounds like you haven't increased upload_max_filesize in php.ini. If you actually look at what's in $_FILES['userfile'] you'll see most of it's empty. I suggest you add some more error checking rather than assuming everything worked ok. Hey Stut, I'm looking into that now, i just increased the php.ini upload_max_filesize to 250M and tried uploading a 44MB file and it failed... I'll try and add some more error checking, but I'm really leaning towards the problem being in the code I posted... But please, prove me wrong! :) -- Jason Pruim Raoset Inc. Technology Manager MQC Specialist 3251 132nd ave Holland, MI, 49424-9337 www.raoset.com [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr?
On Jun 17, 2008, at 9:01 AM, Dan Shirah wrote:
The code I'm having issues with is this:
$filename = $_FILES['userfile']['name']; // Get the name of
the file (including file extension).
$ext = substr($filename, strpos($filename,'.'),
strlen($filename)-1); // Get the extension from the filename.
All I want to do is grab the file extension and verify that it is
a .zip or a .pdf etc. file. This is working for small files (under a
few megs) but for some reason it fails when I get bigger. I have
increased the allowed memory size to 50 MB's I'm testing with a 44
MB file right now.
I'm not an expert on pulling in and reading files, but if all you
want is the last three characters of a file name, couldn't you just
do something like:
$extension = substr($filename, -3);
if ($extension = "pdf" || $extension = "zip") {
echo "The file is a PDF or ZIP.";
} else {
echo "Incorrect file type.";
}
??
Or maybe you are saying you want it to perform this check while the
user is attempting to upload the file and not after it has been
uploaded?
I am looking to use this as a simple test prior to the upload
beginning... IE, if it's not a .zip file, don't try and upload 250MB
files :)
--
Jason Pruim
Raoset Inc.
Technology Manager
MQC Specialist
3251 132nd ave
Holland, MI, 49424-9337
www.raoset.com
[EMAIL PROTECTED]
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Re: [PHP] substr?
>
> The code I'm having issues with is this:
>
>$filename = $_FILES['userfile']['name']; // Get the name of the file
> (including file extension).
>$ext = substr($filename, strpos($filename,'.'),
> strlen($filename)-1); // Get the extension from the filename.
>
> All I want to do is grab the file extension and verify that it is a .zip or
> a .pdf etc. file. This is working for small files (under a few megs) but for
> some reason it fails when I get bigger. I have increased the allowed memory
> size to 50 MB's I'm testing with a 44 MB file right now.
I'm not an expert on pulling in and reading files, but if all you want is
the last three characters of a file name, couldn't you just do something
like:
$extension = substr($filename, -3);
if ($extension = "pdf" || $extension = "zip") {
echo "The file is a PDF or ZIP.";
} else {
echo "Incorrect file type.";
}
??
Or maybe you are saying you want it to perform this check while the user is
attempting to upload the file and not after it has been uploaded?
Re: [PHP] substr?
On 17 Jun 2008, at 13:39, Jason Pruim wrote: I am attempting to adopt some code to work more reliably then how it is now... What I am doing is coding a upload form where people could be uploading .zip files in excess of 200 MB... Yes I know that is large, but it's for a print shop and they get HUGE files to print from. The code I'm having issues with is this: $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension). $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename. All I want to do is grab the file extension and verify that it is a .zip or a .pdf etc. file. This is working for small files (under a few megs) but for some reason it fails when I get bigger. I have increased the allowed memory size to 50 MB's I'm testing with a 44 MB file right now. When it fails, it says the file type is not allowed even though it is listed in the file type array. Hopefully I have given you enough to go on to at least ask me some questions :) Sounds like you haven't increased upload_max_filesize in php.ini. If you actually look at what's in $_FILES['userfile'] you'll see most of it's empty. I suggest you add some more error checking rather than assuming everything worked ok. -Stut -- http://stut.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] substr?
Hi everyone, I am attempting to adopt some code to work more reliably then how it is now... What I am doing is coding a upload form where people could be uploading .zip files in excess of 200 MB... Yes I know that is large, but it's for a print shop and they get HUGE files to print from. The code I'm having issues with is this: $filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension). $ext = substr($filename, strpos($filename,'.'), strlen($filename)-1); // Get the extension from the filename. All I want to do is grab the file extension and verify that it is a .zip or a .pdf etc. file. This is working for small files (under a few megs) but for some reason it fails when I get bigger. I have increased the allowed memory size to 50 MB's I'm testing with a 44 MB file right now. When it fails, it says the file type is not allowed even though it is listed in the file type array. Hopefully I have given you enough to go on to at least ask me some questions :) -- Jason Pruim Raoset Inc. Technology Manager MQC Specialist 3251 132nd ave Holland, MI, 49424-9337 www.raoset.com [EMAIL PROTECTED]
Re: [PHP] substr and UTF-8
On Wed, 30 Aug 2006 21:46:18 +0700
"Peter Lauri" <[EMAIL PROTECTED]> wrote:
> function is_utf8_start($b) {
> return (($b & 0x80) == 0) || ($b & 0x40);
> }
> [/snip]
>
> :) I think I will go with the mb_substr function, it works for me :)
Yeah, I guess that's the right thing to do. Otherwise, in a year you
won't remember what the cryptic masking is all about.
Mike
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RE: [PHP] substr and UTF-8
[snip]
Actually this is false. I don't know what I was thinking. The high bit
will be set in all bytes of a UTF-8 byte sequence. If it's not it's an
ASCII character.
The bytes are actually layed out as follows [1]:
U- ___ U-007F: 0xxx
U-0080 ___ U-07FF: 110x 10xx
U-0800 ___ U-: 1110 10xx 10xx
U-0001 ___ U-001F: 0xxx 10xx 10xx 10xx
So there's no way to tell the last byte of a UTF-8 byte sequence but you
can tell if it's the first byt looking at bits 7 and 8. Specifically,
if bit 8 is not on, the character is ASCII and thus the "start" of a
new character. Otherwise, if bit 7 is on it's the start of a new UTF-8
byte sequence.
function is_utf8_start($b) {
return (($b & 0x80) == 0) || ($b & 0x40);
}
[/snip]
:) I think I will go with the mb_substr function, it works for me :)
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Re: [PHP] substr and UTF-8
On Wed, 30 Aug 2006 10:08:36 -0400
Michael B Allen <[EMAIL PROTECTED]> wrote:
> On Wed, 30 Aug 2006 18:34:20 +0700
> "Peter Lauri" <[EMAIL PROTECTED]> wrote:
>
> > Hi group,
> >
> > I want to limit the number of characters that are shown in a script. The
> > characters happen to be Thai, and the page is encoded in UTF-8. Everything
> > works, except when I want to cut the text (just take start of string).
> >
> > I do:
> >
> > echo substr($thaistring, 0, 30);
> >
> > The beginning of the string works fine, but the last character does mostly
> > "break". How can I determine the start and end of a character.
>
> The last byte of a UTF-8 character does not have bit 8 set whereas all
> preceeding bytes do.
Actually this is false. I don't know what I was thinking. The high bit
will be set in all bytes of a UTF-8 byte sequence. If it's not it's an
ASCII character.
The bytes are actually layed out as follows [1]:
U- ___ U-007F: 0xxx
U-0080 ___ U-07FF: 110x 10xx
U-0800 ___ U-: 1110 10xx 10xx
U-0001 ___ U-001F: 0xxx 10xx 10xx 10xx
So there's no way to tell the last byte of a UTF-8 byte sequence but you
can tell if it's the first byt looking at bits 7 and 8. Specifically,
if bit 8 is not on, the character is ASCII and thus the "start" of a
new character. Otherwise, if bit 7 is on it's the start of a new UTF-8
byte sequence.
function is_utf8_start($b) {
return (($b & 0x80) == 0) || ($b & 0x40);
}
Mike
[1] http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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Re: [PHP] substr and UTF-8
On Wed, 30 Aug 2006 18:34:20 +0700 "Peter Lauri" <[EMAIL PROTECTED]> wrote: > Hi group, > > I want to limit the number of characters that are shown in a script. The > characters happen to be Thai, and the page is encoded in UTF-8. Everything > works, except when I want to cut the text (just take start of string). > > I do: > > echo substr($thaistring, 0, 30); > > The beginning of the string works fine, but the last character does mostly > "break". How can I determine the start and end of a character. The last byte of a UTF-8 character does not have bit 8 set whereas all preceeding bytes do. Mike -- Michael B Allen PHP Active Directory SSO http://www.ioplex.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr and UTF-8
Peter Lauri wrote: > Hi group, > > I want to limit the number of characters that are shown in a script. The > characters happen to be Thai, and the page is encoded in UTF-8. Everything > works, except when I want to cut the text (just take start of string). > > I do: > > echo substr($thaistring, 0, 30); > > The beginning of the string works fine, but the last character does mostly > "break". How can I determine the start and end of a character. become familiar with (and install) the mb_string extension > > I hope the problem is clear enough, is it? :) > > Best regards, > Peter Lauri > > www.lauri.se - personal web site > www.dwsasia.com - company web site > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] substr and UTF-8
Hi group, I want to limit the number of characters that are shown in a script. The characters happen to be Thai, and the page is encoded in UTF-8. Everything works, except when I want to cut the text (just take start of string). I do: echo substr($thaistring, 0, 30); The beginning of the string works fine, but the last character does mostly "break". How can I determine the start and end of a character. I hope the problem is clear enough, is it? :) Best regards, Peter Lauri www.lauri.se - personal web site www.dwsasia.com - company web site -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Substr by words
On Sat, October 29, 2005 6:36 am, Danny wrote: > I need to extract 50 words more or less from a description field. How > can i > do that?. Substr, cuts the words. Is there any other way to that, > without > using and array? I mean and implemented function in PHP 4.x > I´ve been googling around, but wordwrap, and substr is driving me > mad... Keep in mind that the "pipe" between your database and PHP is a rather small narrow expensive opening. Sucking down your ENTIRE description field to throw away all but 50 characters may not be the best use of limited resources. [This is all MOOT if you have no dreams of your site being "big" some day.] You therefore may want to consider something like: select substring(description, 1, instr(description, ' ', 50)) as description_50, substring(description, instr(description, ' ', 50), 1) as more from ... $description_50 will be 50 chars, more or less $more will tell you if there was "more" or not You will only be getting ~50 characters squeezed through that narrow expensive db <-> PHP pipeline. I believe that in MOST PHP/database applications this is going to be a better performing solution, and it's somewhat "cleaner" aesthetically than shoveling a bunch of data around that you're going to discard anyway. * instr may or may not be the right function in your database. I always forget the name of this one and have to look it up. -- Like Music? http://l-i-e.com/artists.htm -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Substr by words
Hi, I need to extract 50 words more or less from a description field. How can i do that?. Substr, cuts the words. Is there any other way to that, without using and array? I mean and implemented function in PHP 4.x I´ve been googling around, but wordwrap, and substr is driving me mad... Thanks in advance Best Regards -- dpc
Re: [PHP] Substr
split() uses the POSIX regular expressions engine, and thus also uses
regular expressions. The loading of this engine is a massive overhead
when dealing with simple splitting of a string. To do basic things like
this it's a lot faster to use explode().
- Tul
Francisco M. Marzoa Alonso wrote:
You can also use split function if you do not know about regular
expressions and do not want to learn:
$string = "pid_1_date_2004_10_25";
$regs = split ("_", $string );
print_r ($regs);
?>
I think its autoexplicative.
Shaun wrote:
Hi,
I have a string as follows: pid_1_date_2004_10_25
pid tells me the Project_ID and date tells me the date(!). I need to
extract this information from the string so to get the date I need
everything after 'date_' as follows:
substr(strstr($key, 'date_'), 4)
However, to get the Project ID I need to extract everything after
'pid_' and everything before 'date_'. Can someone help me with this
please as PHP doesn't seem to provide a function for extracting
information from a string that occurs before the 'needle'?
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RE: [PHP] Substr
What about using explode()?
$array = explode('_', 'pid_1_date_2004_10_25');
$pid = $array[1];
$yr = $array[3];
$mn = $array[4];
$dy = $array[5];
Graham
> -Original Message-
> From: Shaun [mailto:[EMAIL PROTECTED]
> Sent: 25 October 2004 14:00
> To: [EMAIL PROTECTED]
> Subject: [PHP] Substr
>
>
> Hi,
>
> I have a string as follows: pid_1_date_2004_10_25
>
> pid tells me the Project_ID and date tells me the date(!). I need
> to extract
> this information from the string so to get the date I need
> everything after
> 'date_' as follows:
>
> substr(strstr($key, 'date_'), 4)
>
> However, to get the Project ID I need to extract everything after
> 'pid_' and
> everything before 'date_'. Can someone help me with this please as PHP
> doesn't seem to provide a function for extracting information
> from a string
> that occurs before the 'needle'?
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
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Re: [PHP] Substr
You can also use split function if you do not know about regular
expressions and do not want to learn:
$string = "pid_1_date_2004_10_25";
$regs = split ("_", $string );
print_r ($regs);
?>
I think its autoexplicative.
Shaun wrote:
Hi,
I have a string as follows: pid_1_date_2004_10_25
pid tells me the Project_ID and date tells me the date(!). I need to extract
this information from the string so to get the date I need everything after
'date_' as follows:
substr(strstr($key, 'date_'), 4)
However, to get the Project ID I need to extract everything after 'pid_' and
everything before 'date_'. Can someone help me with this please as PHP
doesn't seem to provide a function for extracting information from a string
that occurs before the 'needle'?
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Re: [PHP] Substr
Use regular expresions: $string = "pid_1_date_2004_10_25"; preg_match ( '/^pid_(.*?)_date_(.*?)$/', $string, $regs ); print_r ($regs); ?> Shaun wrote: Hi, I have a string as follows: pid_1_date_2004_10_25 pid tells me the Project_ID and date tells me the date(!). I need to extract this information from the string so to get the date I need everything after 'date_' as follows: substr(strstr($key, 'date_'), 4) However, to get the Project ID I need to extract everything after 'pid_' and everything before 'date_'. Can someone help me with this please as PHP doesn't seem to provide a function for extracting information from a string that occurs before the 'needle'? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Substr
Shaun wrote: However, to get the Project ID I need to extract everything after 'pid_' and everything before 'date_'. Can someone help me with this please as PHP doesn't seem to provide a function for extracting information from a string that occurs before the 'needle'? yes it doe. look under regular expressions. -- Raditha Dissanayake. http://www.radinks.com/sftp/ | http://www.raditha.com/megaupload Lean and mean Secure FTP applet with | Mega Upload - PHP file uploader Graphical User Inteface. Just 128 KB | with progress bar. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Substr
Hi, I have a string as follows: pid_1_date_2004_10_25 pid tells me the Project_ID and date tells me the date(!). I need to extract this information from the string so to get the date I need everything after 'date_' as follows: substr(strstr($key, 'date_'), 4) However, to get the Project ID I need to extract everything after 'pid_' and everything before 'date_'. Can someone help me with this please as PHP doesn't seem to provide a function for extracting information from a string that occurs before the 'needle'? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] substr == SOLVED (was "Re: [PHP] substrings")
Richard, et al --
...and then Richard Harb said...
%
% $color = '#aabbcc';
%
% if (strlen($color) == 7) {
%echo ' r: ' . substr($color, 1, 2);
[snip]
D'oh! I knew it should be substr but I could never find it! I was up to
page 1098 or such and muddling through all of the PCRE doc when I gave up
and asked for help :-)
Thanks & HAND
:-D
--
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pgp0.pgp
Description: PGP signature
Re: [PHP] substr ?
John Taylor-Johnston wrote: Sorry, scrap that: if (substr_count($mystring,"¶") >0) John Taylor-Johnston wrote: How can I find out if $mystring includes the character "¶"? Thought substr would do it? J strpos() would be better... -- ---John Holmes... Amazon Wishlist: www.amazon.com/o/registry/3BEXC84AB3A5E/ PHP|Architect: A magazine for PHP Professionals – www.phparch.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr ?
Sorry, scrap that: if (substr_count($mystring,"¶") >0) John Taylor-Johnston wrote: > How can I find out if $mystring includes the character "¶"? > Thought substr would do it? > J -- John Taylor-Johnston - "If it's not open-source, it's Murphy's Law." ' ' ' Collège de Sherbrooke: ô¿ô http://www.collegesherbrooke.qc.ca/languesmodernes/ - Université de Sherbrooke: http://compcanlit.ca/ 819-569-2064 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] substr ?
How can I find out if $mystring includes the character "¶"? Thought substr would do it? J -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr() on part an ereg() capture
A that makes more sense!! Am trying everyone's suggestions now...
Justin French
on 27/03/03 3:32 AM, Marek Kilimajer ([EMAIL PROTECTED]) wrote:
> Forgot to mention this is to be run after
> eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", " href=\"\\1://\\2\\3\" {$t}\">\\1://\\2\\3", $str);
> as it only replaces long strings within tags
>
>
> Marek Kilimajer wrote:
>
>> $str = preg_replace('|(]*>[^<]{55})[^<]+()|','$1...$2', $str);
>>
>> Justin French wrote:
>>
>>> Hi, I have this ereg to turn URLs into links:
>>>
>>> eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", ">> href=\"\\1://\\2\\3\" {$t}\">\\1://\\2\\3", $str);
>>>
>>> ... found it in the manual i think, or maybe on weberdev.com examples
>>>
>>>
>>> Anyhoo, it places the whole link in between the and ,
>>> which is
>>> fine for short links, but on longer links (in my case, around 60+
>>> chars), it
>>> messes with my table or CSS layout.
>>>
>>> So, I'd like to subtr() the 2nd capture part down to 55 chars or
>>> something
>>> IF it's longer than 60, and append a ... to it.
>>>
>>> ANY ideas on how this is done? Or is this beyond regexp??
>>>
>>>
>>> TIA
>>>
>>> Justin
>>>
>>>
>>>
>>>
>>
>>
>
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Re: [PHP] substr() on part an ereg() capture
Forgot to mention this is to be run after
eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "\\1://\\2\\3", $str);
as it only replaces long strings within tags
Marek Kilimajer wrote:
$str = preg_replace('|(]*>[^<]{55})[^<]+()|','$1...$2', $str);
Justin French wrote:
Hi, I have this ereg to turn URLs into links:
eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "\\1://\\2\\3", $str);
... found it in the manual i think, or maybe on weberdev.com examples
Anyhoo, it places the whole link in between the and ,
which is
fine for short links, but on longer links (in my case, around 60+
chars), it
messes with my table or CSS layout.
So, I'd like to subtr() the 2nd capture part down to 55 chars or
something
IF it's longer than 60, and append a ... to it.
ANY ideas on how this is done? Or is this beyond regexp??
TIA
Justin
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Re: [PHP] substr() on part an ereg() capture
$str = preg_replace('|(]*>[^<]{55})[^<]+()|','$1...$2', $str);
Justin French wrote:
Hi, I have this ereg to turn URLs into links:
eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "\\1://\\2\\3", $str);
... found it in the manual i think, or maybe on weberdev.com examples
Anyhoo, it places the whole link in between the and , which is
fine for short links, but on longer links (in my case, around 60+ chars), it
messes with my table or CSS layout.
So, I'd like to subtr() the 2nd capture part down to 55 chars or something
IF it's longer than 60, and append a ... to it.
ANY ideas on how this is done? Or is this beyond regexp??
TIA
Justin
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RE: [PHP] substr() on part an ereg() capture
Looks like this one :
http://examples.weberdev.com/get_example.php3?count=1567
so if someone manages to get this done, i would appreciate it if he can
add a comment.
thanks
berber
-Original Message-
From: Justin French [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 25, 2003 3:24 PM
To: php
Subject: [PHP] substr() on part an ereg() capture
Hi, I have this ereg to turn URLs into links:
eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "\\1://\\2\\3", $str);
... found it in the manual i think, or maybe on weberdev.com examples
Anyhoo, it places the whole link in between the and , which
is fine for short links, but on longer links (in my case, around 60+
chars), it messes with my table or CSS layout.
So, I'd like to subtr() the 2nd capture part down to 55 chars or
something IF it's longer than 60, and append a ... to it.
ANY ideas on how this is done? Or is this beyond regexp??
TIA
Justin
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Re: [PHP] substr() on part an ereg() capture
couldn't you just do substr( $blah, 0, 55)
or something similar?
(i'm crap with syntax, so that's just off my head...)
-skate-
fatcuban.com
- Original Message -
From: "Justin French" <[EMAIL PROTECTED]>
To: "php" <[EMAIL PROTECTED]>
Sent: Tuesday, March 25, 2003 1:24 PM
Subject: [PHP] substr() on part an ereg() capture
> Hi, I have this ereg to turn URLs into links:
>
> eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", " href=\"\\1://\\2\\3\" {$t}\">\\1://\\2\\3", $str);
>
> ... found it in the manual i think, or maybe on weberdev.com examples
>
>
> Anyhoo, it places the whole link in between the and , which is
> fine for short links, but on longer links (in my case, around 60+ chars),
it
> messes with my table or CSS layout.
>
> So, I'd like to subtr() the 2nd capture part down to 55 chars or something
> IF it's longer than 60, and append a ... to it.
>
> ANY ideas on how this is done? Or is this beyond regexp??
>
>
> TIA
>
> Justin
>
>
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> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
>
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[PHP] substr() on part an ereg() capture
Hi, I have this ereg to turn URLs into links:
eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "\\1://\\2\\3", $str);
... found it in the manual i think, or maybe on weberdev.com examples
Anyhoo, it places the whole link in between the and , which is
fine for short links, but on longer links (in my case, around 60+ chars), it
messes with my table or CSS layout.
So, I'd like to subtr() the 2nd capture part down to 55 chars or something
IF it's longer than 60, and append a ... to it.
ANY ideas on how this is done? Or is this beyond regexp??
TIA
Justin
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RE: [PHP] substr() help
Try this
$temp = fgets($fp,4096);
$line = substr($temp,0,10);
Robbert van Andel
-Original Message-
From: Paul Reilly [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 07, 2003 9:06 AM
To: [EMAIL PROTECTED]
Subject: [PHP] substr() help
working on a peice of code that should be pretty easy, but for some reason I
am not getting any results.
I want the first 10 characters of each line from the file I am reading and
am using this code:
$temp = str_replace("\n", "", fgets($fp, 4096));
$line = substr ($temp, 0, 5);
when I test for temp I get 30 responses - which is correct, but when I test
for $line I get Zero responses. Did I make a mistake in my code
Paul Reilly
[EMAIL PROTECTED]
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[PHP] substr() help
working on a peice of code that should be pretty easy, but for some reason I
am not getting any results.
I want the first 10 characters of each line from the file I am reading and
am using this code:
$temp = str_replace("\n", "", fgets($fp, 4096));
$line = substr ($temp, 0, 5);
when I test for temp I get 30 responses - which is correct, but when I test
for $line I get Zero responses. Did I make a mistake in my code
Paul Reilly
[EMAIL PROTECTED]
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Re: [PHP] substr?
> When working with Boolean expressions in this way, deMorgan's laws often come in handy; these state that: > > !a AND !bis the same as !(a OR b) > !a OR !b is the same as !(a AND b) > > Hope this helps!! I don't know who this deMorgan dude is, but that rule is being written down in red on a piece of paper that's getting stuck to the bottom of my screen. It makes perfect sense, and I can start to see where the whole "maths" thing comes into programming now... It's actually not only a case of logic, but very much based on maths as well (which I'm afraid isn't something I'm good at)... Needless to say, this helped me quite a bit... I'll try and implement it wisely :-) -- me -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] substr?
> -Original Message-
> From: Chris Knipe [mailto:[EMAIL PROTECTED]]
> Sent: 17 June 2002 09:28
>
> Is this right? It seems to me that substr is working in reverse?
>
> $string = "1234567890"; // Always numerical, always 10 chars.
> if (!substr($string, 0, -7) == "083") {
> echo "not 083\n";
> } else {
> // Exists here.
> echo "is 083\n";
> }
>
> Due to the reverse if, shouldn't it exit not 083?
But you haven't inverted the if, just the substr; the above is the same as:
if ( (!substr($string, 0, -7)) == "083") {
which doesn't actually make a lot of sense!
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
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RE: [PHP] substr?
> -Original Message-
> From: Lazor, Ed [mailto:[EMAIL PROTECTED]]
> Sent: 17 June 2002 21:24
> To: 'Chris Knipe'; [EMAIL PROTECTED]
> Subject: RE: [PHP] substr?
>
>
> Here's another way of writing that code that may be easier to
> work with:
>
> $TestValues = array("072", "073", "082", "083", "084");
> $NumC = $substr($_POST['NumC'], 0, 3);
> if (in_array($NumC, $TestValues))
> $FormError = "True";
And here's another:
switch substr($_POST'NumC'], 0, 3):
case '072':
case '073':
case '082':
case '083':
case '084':
// acceptable -- do anything appropriate here
// (even nothing, if that's what you want!)
break;
default:
// not acceptable
$FormError = "True";
endswitch;
Incidentally, why are you setting the variable $FormError to the string "True", rather
than the Boolean TRUE? You may have a perfectly ggod reason, but it looks odd to my
eyes. If a Boolean would be acceptable, you could also write it like this:
$NumC = substr($_POST'NumC'], 0, 3);
$FormError = $NumC!='072' && $NumC!='073'
&& $NumC!='082' && $NumC!='083' && $NumC!='084';
or:
$FormError = !in_array(substr($_POST'NumC'], 0, 3),
array('072', '073', '082', '083', '084'));
> > -Original Message-
> > From: Chris Knipe [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, June 17, 2002 12:19 PM
> >
> > So what's the difference between
> > if (!(($blah == blah) OR ($ab == ab))) {
> > and
> > if ((!$blah == blah) OR (!$ab == ab)) {
Well, as you've written it, a hell of a lot!! I assume you meant the second version
to be:
if (!($blah == blah) OR !($ab == ab)) {
> > Shouldn't they both do the same? And if so, why didn't they
> > in this case??
No, they absolutely shouldn't. Think about it: the first ORs the two comparisons, and
then takes the NOT of that; the second NOTs both comparisoons, then does the OR. It's
the same sort of reason why
$x = -1 * -2;
is not the same as
$x = -(1 * 2);
When working with Boolean expressions in this way, deMorgan's laws often come in
handy; these state that:
!a AND !bis the same as !(a OR b)
!a OR !b is the same as !(a AND b)
Hope this helps!!
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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RE: [PHP] substr....what does this mean? (newbie)
-1 is the index of the char number you want to examine.
http://www.php.net/manual/en/function.substr.php
So that code is checking the last char of the string
to see if its ".", if it is, it returns everything *except*
the ".".
Please consult the online manual in the future...
it wants to be your friend.
---
Scott Hurring
Systems Programmer
EAC Corporation
[EMAIL PROTECTED]
Voice: 201-462-2149
Fax: 201-288-1515
> -Original Message-
> From: r [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, May 22, 2002 2:51 AM
> To: [EMAIL PROTECTED]
> Subject: [PHP] substrwhat does this mean? (newbie)
>
>
> Hi ppl,
> Can you tell me what does this mean?
>
> if (substr($text, -1) == ".")
> {$test = substr($text, 0, -1);}
>
> I know the if part searches the $text from the starting for the "."
> I am just confused about what the second and third arguement
> does in the
> substr. (Second line)
>
> I know that this is an easy question for you PHP guys out there,
> and I know i will get an answer,
> so I thank you all in advance.
>
> Cheers
> -Ryan A.
>
>
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[PHP] substr....what does this mean? (newbie)
Hi ppl,
Can you tell me what does this mean?
if (substr($text, -1) == ".")
{$test = substr($text, 0, -1);}
I know the if part searches the $text from the starting for the "."
I am just confused about what the second and third arguement does in the
substr. (Second line)
I know that this is an easy question for you PHP guys out there,
and I know i will get an answer,
so I thank you all in advance.
Cheers
-Ryan A.
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[PHP] Substr + Text + HTML - Problem
Hi, I still have one problem, which seems to be not solveable in a easy and smooth way: I have a text file like this: $text="This is a html extended textwhich needs to be cut after 100 chars"; Than I do a substring to limit it to only 100 words (teaser-format): $teaser_1=substr($text, 0, 100); $teaser_2="...[click here for more]"; The Output of $teaser_1 will sometimes be like this: "This is a html extended textwhich needs to be cut after 100 chars is displayed as http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Substr and HTML tags - Problem...
> Personally when I'm doing teasers I strip all HTML from the content > before using substr: > > $teaser = strip_tags($content); > $teaser = substr($teaser, 0, 100); > $teaser .= '...'; // Nice touch to have a '...' on the end :) > You don't have a handy way to check that your substr() doesn't cut off half-way through a word, do you? I'm up against this issue myself at the moment and it's a PITA to sort out - I keep getting things like "Fnord fnord fnord fnord fnord fno", where the last "fnord" is missing its "rd". It's bound to be a case of stepping back through the string until a space is encountered, and then keeping everything to the left of that, but I haven't worked out an elegant way to do it yet :-) Cheers Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
AW: [PHP] Substr and HTML tags - Problem...
Thanks, found a way - the PHP function wordwrap does it just perfect (recognizes the tags, too) ... Sometimes it's just good to browse a little bit through PHP.net (*g*) Sascha Ragtschaa -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Substr and HTML tags - Problem...
Sascha Ragtschaa wrote >I need to limit a teaser-text via substr($teaser,0,100). The Problem I now >have is, if the last 4 string chars are a html tag like and this tag >will be cut by the substr to something like that: webpage... > >How can I avoid that the html tags are cut by the substr function? Is there >a way to make the function know, that it has to leave html tags uncut?? > Personally when I'm doing teasers I strip all HTML from the content before using substr: $teaser = strip_tags($content); $teaser = substr($teaser, 0, 100); $teaser .= '...'; // Nice touch to have a '...' on the end :) I can't think of a way of keeping HTML tags but ensuring you don't cut off half way through one - I suppose you could do it by scanning along the string character by character keeping track ofwhether or not you have encountered a < without a matching >, then if you get to the end and you are half way through a tag running back to the start of the tag and deleting from there. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Substr and HTML tags - Problem...
Hi, I got a small problem: I need to limit a teaser-text via substr($teaser,0,100). The Problem I now have is, if the last 4 string chars are a html tag like and this tag will be cut by the substr to something like that: http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] substr trim functions..
There are no shortage of ways to do this.
// Using explode() ...
echo array_pop(explode(" ",$full_name));
// Using split() ...
echo array_pop(split(" ",$full_name));
// Using stristr()
while($haystack = stristr($haystack," ")) {
$haystack = substr($haystack,1);
$last_word = $haystack;
}
echo "$last_word";
Plus all the preg_match and regular expression functions...
http://php.net/explode
http://php.net/split
http://php.net/stristr
jim
>I trying to convert some full names to last names only like:
>-get the subtext from the end until the space
>
>"joe blue" -> "blue"
>"bill western" - "western"
>
>Looked around at php.net docs but im not sure...
>
>Thanks
>
>Andras
>
>
>
>
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Re: [PHP] substr trim functions..
$pos=strpso($line," "); $last=substr($line, $pos, strlen($line)); http://www.php.net/manual/en/function.substr.php http://www.php.net/manual/en/function.strpos.php http://www.php.net/manual/en/function.strlen.php @+++ Le Vendredi 14 Décembre 2001 17:11, Andras Kende a écrit : > I trying to convert some full names to last names only like: > -get the subtext from the end until the space > > "joe blue" -> "blue" > "bill western" - "western" > > Looked around at php.net docs but im not sure... > > Thanks > > Andras -- ( * >Nicolas Costes, //\\ IUT de La Roche / Yon ( \/ ) [EMAIL PROTECTED] < < http://luxregina.free.fr -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] substr trim functions..
I trying to convert some full names to last names only like: -get the subtext from the end until the space "joe blue" -> "blue" "bill western" - "western" Looked around at php.net docs but im not sure... Thanks Andras -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] substr() in MySQL SELECT?
hi, don: thanks a lot for the tip. and thanks even more for echoing the poor tone i used in my post--i will try to avoid writing such posts in the future. after looking at the documentation (many connection problems today), i was able to write this, like i wanted: SELECT User, SendDate FROM $table_name WHERE (Answer=0)&&( abs((SUBSTRING(SendDate, 1, 2)) - $NowDay) > 7 ) thanks again, tom Don Read wrote: > > On 19-Sep-2001 Tom Churm wrote: > > hi, > > > > could someone please tell me why this doesn't work? i thought that > > string functions could be used in select statements? i dunno... > > > > SELECT User, SendDate FROM my_form > > WHERE substr(SendDate, 0, 2)=19; > > > > and i've tried the damn thing with brackets around all different parts. > > > > Try to figure out the damn difference between PHP substr() & SQL SUBSTRING(). > > > thanks much, > > > > your welcome, > -- > Don Read [EMAIL PROTECTED] > -- It's always darkest before the dawn. So if you are going to >steal the neighbor's newspaper, that's the time to do it. -- Tom Churm . Pixelpark AG. . . . . . . . . . . . . . . . . . . Online Developer E-Marketing Rotherstrasse 8 . 10245 Berlin . Germany phone: + 49 30 5058 -1696 . fax: -1756 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] substr() in MySQL SELECT?
On 19-Sep-2001 Tom Churm wrote: > hi, > > could someone please tell me why this doesn't work? i thought that > string functions could be used in select statements? i dunno... > > SELECT User, SendDate FROM my_form > WHERE substr(SendDate, 0, 2)=19; > > and i've tried the damn thing with brackets around all different parts. > Try to figure out the damn difference between PHP substr() & SQL SUBSTRING(). > thanks much, > your welcome, -- Don Read [EMAIL PROTECTED] -- It's always darkest before the dawn. So if you are going to steal the neighbor's newspaper, that's the time to do it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
[PHP] substr() in MySQL SELECT?
hi, could someone please tell me why this doesn't work? i thought that string functions could be used in select statements? i dunno... SELECT User, SendDate FROM my_form WHERE substr(SendDate, 0, 2)=19; and i've tried the damn thing with brackets around all different parts. thanks much, tom -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] substr question...
You wrote:
> I am trying to receive file names but can't quite figure out the
proper > substr to do it:
>
> jeff.dat
> jeffrey.dat
> chris.dat
> tom.dat
>
> I want to receive the name to the left of the .dat
>
> Jeff
$file = array("jeff.dat", "jeffrey.dat", "chris.dat", "tom.dat");
for($i=0; $i\n";
}
HTH! :)
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Re: [PHP] substr question...
RE: [PHP] substr question...I suppose that $tmpmember=substr($entry, 0,-4); will do the same? :) Jeff - Original Message - From: Boget, Chris To: 'Jeff Lewis' ; [EMAIL PROTECTED] Sent: Thursday, July 26, 2001 3:54 PM Subject: RE: [PHP] substr question... > I am trying to receive file names but can't quite figure out > the proper substr to do it: > jeff.dat > jeffrey.dat > chris.dat > tom.dat > I want to receive the name to the left of the .dat $fileName = eregi_replace( "\.dat", "", $fullFileName ); Chris
RE: [PHP] substr question...
> I am trying to receive file names but can't quite figure out > the proper substr to do it: > jeff.dat > jeffrey.dat > chris.dat > tom.dat > I want to receive the name to the left of the .dat $fileName = eregi_replace( "\.dat", "", $fullFileName ); Chris
Re: [PHP] substr question...
try
$filename=explode(".", names);
echo $filename[0]
Jeff Lewis wrote:
> I am trying to receive file names but can't quite figure out the proper substr to do
>it:
>
> jeff.dat
> jeffrey.dat
> chris.dat
> tom.dat
>
> I want to receive the name to the left of the .dat
>
> Jeff
>
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[PHP] substr question...
I am trying to receive file names but can't quite figure out the proper substr to do it: jeff.dat jeffrey.dat chris.dat tom.dat I want to receive the name to the left of the .dat Jeff
