[PHP] Trouble with thumbnail generation using GD
Hi, i was trying to create thumbnail using a tutorial on image galleries,
I am having problems creating thumbnail images using GD. The thumbnail is
created with the sizes prorerly, however the image is black.
I have posted a temporary php file i created to investigate the problem
below.
I suspect the problem is with the imagecopyresampled function.
I am using php version 4.3.4 with GD ver 2.0.x in windows XP for the test
machine
I appreciate any help
Thanks
PHP:
?php
$submit = $_POST['submit'];
if(isset($submit))
{
$file = $_FILES['file'];
$filename = any.jpg;
move_uploaded_file($file['tmp_name'], $filename);
$height = get_size($filename, height);
$width = get_size($filename, width);
$source_handle = ImageCreateFromJPEG($filename);
$destination_handle = ImageCreateTrueColor($width, $height);
ImageCopyResampled($destination_handle, $source_handle, 0, 0, 0, 0,
$width, $height, $size[0], $size[1]);
ImageJPEG($source_handle, './tb_' . $filename);
echo Success!!?brbrbrimg src=./tb_any.jpg /?
exit();
}
function get_size($filename, $dimension)
{
global $images_dir;
$size = GetImageSize($filename);
// Wide Image
if($size[0] $size[1])
{
$thumbnail_width = 100;
$thumbnail_height = (int)(100 * $size[1] / $size[0]);
}
// Tall Image
else
{
$thumbnail_width = (int)(100 * $size[0] / $size[1]);
$thumbnail_height = 100;
}
if($dimension == width)
{
return $thumbnail_width;
}
else
{
return $thumbnail_height;
}
}
?
form action=?=$PHP_SELF? name=frmAdd method=post
enctype=multipart/form-data
pTitle:brinput type=text size=54 name=article_title //p
pDescription:brtextarea name=article_text rows=10
cols=40/textarea/p
pFile:brinput name=file type=file size=54 //p
pinput type=submit name=submit value=Submit //p/form
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Re: [PHP] passing variable arguments from select
I still cant get it right,
in query.php i have this piece of code;
echo form action='test2.php' action='post'
select name='language'
option value='0'selected='yes'one/option
option value='1'two/option
/select
input type=text name=query
input type=submit name=submit
/form;
and in test2.php i have this;
if ($_POST['language'] = 1)
{$lang = EngP=1;}
else {$lang = EngP=0;}
echo $lang ;
But it always echoes EngP=1 no matter what I choose, what is wrong here??
Erik Price [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
On Wednesday, June 26, 2002, at 02:51 PM, Haddad Said wrote:
Hi, i am having a problem passing variables from a drop down menu in a
form;
from action=test.php action=post
select name=example
option selected one/option
option two/option
/form
You should do it like this (be sure to properly quote your attributes,
and use the 'value' attribute of the 'option' tag):
print form action='test.php' method='post'
select name='example'
option selected='yes' value='1'One/option
option value='2'Two/option
/select
/form\n;
In the test.php page, the selected value will be found in the
$_POST['example'] variable.
Erik
Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]
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Re: [PHP] passing variable arguments from select
Yes I changed that, but now it always echoes EngP=0
Mark Heintz Php Mailing Lists [EMAIL PROTECTED] wrote in
message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
On Thu, 27 Jun 2002, Haddad Said wrote:
in query.php i have this piece of code;
echo form action='test2.php' action='post'
select name='language'
option value='0'selected='yes'one/option
option value='1'two/option
/select
input type=text name=query
input type=submit name=submit
/form;
and in test2.php i have this;
if ($_POST['language'] = 1)
{$lang = EngP=1;}
else {$lang = EngP=0;}
echo $lang ;
But it always echoes EngP=1 no matter what I choose, what is wrong
here??
if ($_POST['language'] == 1)
You have an assignment operator instead of a comparison in your if
statement.
mh.
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Re: [PHP] passing variable arguments from select
I just found out the $_POST['language'] is always assigned the value Array.
Since a user must choose either of the options and not both, I would rather
do this without arrays, is there another way?
Haddad Said [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
Yes I changed that, but now it always echoes EngP=0
Mark Heintz Php Mailing Lists [EMAIL PROTECTED] wrote in
message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
On Thu, 27 Jun 2002, Haddad Said wrote:
in query.php i have this piece of code;
echo form action='test2.php' action='post'
select name='language'
option value='0'selected='yes'one/option
option value='1'two/option
/select
input type=text name=query
input type=submit name=submit
/form;
and in test2.php i have this;
if ($_POST['language'] = 1)
{$lang = EngP=1;}
else {$lang = EngP=0;}
echo $lang ;
But it always echoes EngP=1 no matter what I choose, what is wrong
here??
if ($_POST['language'] == 1)
You have an assignment operator instead of a comparison in your if
statement.
mh.
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[PHP] passing variable arguments from select
Hi, i am having a problem passing variables from a drop down menu in a form; from action=test.php action=post select name=example option selected one/option option two/option /form So how will the values of $example be assigned in test.php? THanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Remote cgi script function
Thanks John,
See when i echo $contents, the page displayed contains backgrounds and other
text from the remote site, how can i crop only the returned query and
display it in a page with my backgrounds etc
thanks
John Holmes [EMAIL PROTECTED] wrote in message
000a01c21aef$f58fc0a0$b402a8c0@mango">news:000a01c21aef$f58fc0a0$b402a8c0@mango...
I am new to php, I would like to create a function that when called
sends text from a text box as a query to a remote cgi script ,e.g
http://www.anydomain.com/cgi-bin/script.cgi, and return the results as
a
variable so that i can echo the returned variable to an html page.
?
$contents = ;
$text = whatever...;
$ftext = urlencode($text);
$fp = fopen(http://www.example.com/cgi-bin/script.cgi?text=; . $ftext,
r);
while($data = fread($fp,1000))
{ $contents .= $data; }
fclose ($fd);
?
The response is now in $contents. Adapt to your needs.
---John Holmes...
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[PHP] Remote cgi script function
Hi, I am new to php, I would like to create a function that when called sends text from a text box as a query to a remote cgi script ,e.g http://www.anydomain.com/cgi-bin/script.cgi, and return the results as a variable so that i can echo the returned variable to an html page. I would appreciate any help on this Thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
