Re: [PHP] How to make binary strings useful?
Jerry Miller wrote:
Is there an example of the UNIX od utility written
in PHP?
I dunno. Goodle for PHP octal dump
Is such a useful task even possible??
Certainly it's possible, though I'm not sure why you wouldn't just USE the
existing 'od' utility.
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file???
Strings are strings in PHP.
They're not bytes thinly disguised as strings by some declarative fiat of
the programmer.
If you want to convert a string to an integer, then you have to use the
http://php.net/ord function to do that.
You can then use functions to convert to binary, hex, octal etc.
Even the deprecated
(why) $str{$inx} notation apparently results in
You'd have to read the PHP-Developer list to find out what the rationale
for deprecating that feature was.
Perhaps the confusion that arose from people thinking strings where
arrays, since the syntax for array indexing was the same wasn't worth
the benefit of being able to use [] on a string.
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!)
Actually, I've always found [] access to a string quite useful.
But since I read the manual, I knew I just got a string which happened to
be one character in length from that.
As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is.
So write your utility in C. [shrug]
I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
Okay, but don't wade into PHP programming pretending that it's C just
because the syntax has a surface resemblance to C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
Then your web server PHP CGI configuration is borked.
Fix it.
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
Actually, you can use SCRIPT LANGUAGE=PHP on the server to have it
parse PHP, but PHP is always parsed on the SERVER, never on the client, so
the browser is not going to be able to do much intelligent with SCRIPT
LAGNGUAGE=PHP SRC=xxx
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
If you want to send PHP source code to the browser, you'd send it as
text/plain
Other than that, PHP is SERVER-SIDE and sending text/php would be silly,
as browsers don't have PHP interpreters (and likely never will).
Basically, as far as I can tell, you've waded into PHP pretending that
it's C and now are pissed off because it's not C. Well duh!
Why not spend a little time to read the [bleep] manual?!
http://php.net/manual/
Just focus on the first few sections, up to the point where it starts
listing all the extensions and functions.
An experienced C programmer could probably read through all that in, what,
an hour or two?
You would have saved yourself a GREAT DEAL of frustration, and wouldn't
have wasted so much time on your rant and the replies.
Good Luck!
http://php.net/manual/
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RE: [PHP] How to make binary strings useful?
I need to convert binary dumps of data structures into database table rows, and MySQL on my server doesn't support queries from C. Errr, how can that be? AFAIK the mySQL extension of PHP is ostensibly a wrapper for the mySQL C libraries. If you have mySQL and PHP installed then I can't see any reason why you shouldn't be able to write these queries in C HTH, Mikey -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] How to make binary strings useful?
Richard Lynch wrote:
Jerry Miller wrote:
Is there an example of the UNIX od utility written
in PHP?
I dunno. Goodle for PHP octal dump
Is such a useful task even possible??
Certainly it's possible, though I'm not sure why you wouldn't just USE the
existing 'od' utility.
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file???
Strings are strings in PHP.
They're not bytes thinly disguised as strings by some declarative fiat of
the programmer.
If you want to convert a string to an integer, then you have to use the
http://php.net/ord function to do that.
You can then use functions to convert to binary, hex, octal etc.
Even the deprecated
(why) $str{$inx} notation apparently results in
You'd have to read the PHP-Developer list to find out what the rationale
for deprecating that feature was.
Perhaps the confusion that arose from people thinking strings where
arrays, since the syntax for array indexing was the same wasn't worth
the benefit of being able to use [] on a string.
I have no idea why everyone here believes that syntax is deprecated,
since I don't believe it actually is! The deprecated syntax was the one
with *square* brackets $string[3] instead of $string{3} etc.
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!)
Actually, I've always found [] access to a string quite useful.
But since I read the manual, I knew I just got a string which happened to
be one character in length from that.
As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is.
So write your utility in C. [shrug]
I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
Okay, but don't wade into PHP programming pretending that it's C just
because the syntax has a surface resemblance to C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
Then your web server PHP CGI configuration is borked.
Fix it.
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
Actually, you can use SCRIPT LANGUAGE=PHP on the server to have it
parse PHP, but PHP is always parsed on the SERVER, never on the client, so
the browser is not going to be able to do much intelligent with SCRIPT
LAGNGUAGE=PHP SRC=xxx
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
If you want to send PHP source code to the browser, you'd send it as
text/plain
Other than that, PHP is SERVER-SIDE and sending text/php would be silly,
as browsers don't have PHP interpreters (and likely never will).
Basically, as far as I can tell, you've waded into PHP pretending that
it's C and now are pissed off because it's not C. Well duh!
Why not spend a little time to read the [bleep] manual?!
http://php.net/manual/
Just focus on the first few sections, up to the point where it starts
listing all the extensions and functions.
An experienced C programmer could probably read through all that in, what,
an hour or two?
You would have saved yourself a GREAT DEAL of frustration, and wouldn't
have wasted so much time on your rant and the replies.
Good Luck!
http://php.net/manual/
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Re: [PHP] How to make binary strings useful?
actually, ignore that... I didn't read carefuly enough
*sighs*
M. Sokolewicz wrote:
Richard Lynch wrote:
Jerry Miller wrote:
Is there an example of the UNIX od utility written
in PHP?
I dunno. Goodle for PHP octal dump
Is such a useful task even possible??
Certainly it's possible, though I'm not sure why you wouldn't just USE
the
existing 'od' utility.
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file???
Strings are strings in PHP.
They're not bytes thinly disguised as strings by some declarative fiat of
the programmer.
If you want to convert a string to an integer, then you have to use the
http://php.net/ord function to do that.
You can then use functions to convert to binary, hex, octal etc.
Even the deprecated
(why) $str{$inx} notation apparently results in
You'd have to read the PHP-Developer list to find out what the rationale
for deprecating that feature was.
Perhaps the confusion that arose from people thinking strings where
arrays, since the syntax for array indexing was the same wasn't worth
the benefit of being able to use [] on a string.
I have no idea why everyone here believes that syntax is deprecated,
since I don't believe it actually is! The deprecated syntax was the one
with *square* brackets $string[3] instead of $string{3} etc.
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!)
Actually, I've always found [] access to a string quite useful.
But since I read the manual, I knew I just got a string which happened to
be one character in length from that.
As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is.
So write your utility in C. [shrug]
I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
Okay, but don't wade into PHP programming pretending that it's C just
because the syntax has a surface resemblance to C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
Then your web server PHP CGI configuration is borked.
Fix it.
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
Actually, you can use SCRIPT LANGUAGE=PHP on the server to have it
parse PHP, but PHP is always parsed on the SERVER, never on the
client, so
the browser is not going to be able to do much intelligent with SCRIPT
LAGNGUAGE=PHP SRC=xxx
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
If you want to send PHP source code to the browser, you'd send it as
text/plain
Other than that, PHP is SERVER-SIDE and sending text/php would be silly,
as browsers don't have PHP interpreters (and likely never will).
Basically, as far as I can tell, you've waded into PHP pretending that
it's C and now are pissed off because it's not C. Well duh!
Why not spend a little time to read the [bleep] manual?!
http://php.net/manual/
Just focus on the first few sections, up to the point where it starts
listing all the extensions and functions.
An experienced C programmer could probably read through all that in,
what,
an hour or two?
You would have saved yourself a GREAT DEAL of frustration, and wouldn't
have wasted so much time on your rant and the replies.
Good Luck!
http://php.net/manual/
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[PHP] How to make binary strings useful?
Is there an example of the UNIX od utility written
in PHP? Is such a useful task even possible??
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file??? Even the deprecated
(why) $str{$inx} notation apparently results in
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!) As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is. I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
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Re: [PHP] How to make binary strings useful?
I've written complete file parsers in PHP, and the only snag I've run
into is dealing Signed integers (and larger).
Jerry Miller wrote:
Is there an example of the UNIX od utility written
in PHP? Is such a useful task even possible??
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file???
the pack() and unpack() functions are used to remove data from and
place data into binary strings.
Even the deprecated
(why) $str{$inx} notation apparently results in
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!)
$str{$inx} does return a single character string, in order to get the
numerical value, try using ord()
As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is.
I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
Chris
http://www.php.net/pack
http://www.php.net/unpack
http://www.php.net/ord
http://www.php.net/chr
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Re: [PHP] How to make binary strings useful?
That should help. Thanks.
Chris [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
I've written complete file parsers in PHP, and the only snag I've run
into is dealing Signed integers (and larger).
Jerry Miller wrote:
Is there an example of the UNIX od utility written
in PHP? Is such a useful task even possible??
From what I've seen of strings, they're completely
opaque, so what good does it do to be able to read
binary-safe strings from a file???
the pack() and unpack() functions are used to remove data from and
place data into binary strings.
Even the deprecated
(why) $str{$inx} notation apparently results in
another string, because trying to printf it with the
%02x format always comes out with 00. (Maybe
that's why -- it's useless!)
$str{$inx} does return a single character string, in order to get the
numerical value, try using ord()
As an experienced C
programmer, I'm finding PHP to be as counter-intuitive
for low-level work as Perl is.
I need to convert binary
dumps of data structures into database table rows, and
MySQL on my server doesn't support queries from C.
I thought about writing a CGI script (in C) that
would generate the hard-coded PHP output for
each instance, but a URL that ends in .cgi is
never intercepted by the PHP interpreter. Worse
yet, the SCRIPT LANGUAGE= SRC=
that works perfectly well with JavaScript is
likewise ignored if the language is PHP! Finally,
I'm not aware of a Content-type such as text/php.
What exactly was the purpose of designing yet
another inflexible language?!
Chris
http://www.php.net/pack
http://www.php.net/unpack
http://www.php.net/ord
http://www.php.net/chr
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