Re: [PHP] output buffering in CLI script.
On 2/28/08, Casey [EMAIL PROTECTED] wrote: #!/usr/bin/php Or the entirely more portable version: #!/usr/bin/env php ?php -- Greg Donald http://destiney.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] output buffering in CLI script.
Greg Donald schreef: On 2/28/08, Casey [EMAIL PROTECTED] wrote: #!/usr/bin/php Or the entirely more portable version: #!/usr/bin/env php ?php thanks for the tip :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] output buffering in CLI script.
-Original Message-
From: Jochem Maas [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 28, 2008 6:39 AM
To: [php] PHP General List
Subject: [PHP] output buffering in CLI script.
hi there,
I can't seem to manage to buffer output (of an included file) in a CLI
script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
--
Aren't you deleting the output when you do ob_get_clean?
Meaning, you are missing an echo of the captured buffer, like:
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%', $output[0]))
unset($output[0]);
echo join(\n, $output); // You need to echo this, since you lost your buffer
by doing ob_get_clean
Regards,
Rob
Andrés Robinet | Lead Developer | BESTPLACE CORPORATION
5100 Bayview Drive 206, Royal Lauderdale Landings, Fort Lauderdale, FL 33308 |
TEL 954-607-4207 | FAX 954-337-2695 |
Email: [EMAIL PROTECTED] | MSN Chat: [EMAIL PROTECTED] | SKYPE: bestplace |
Web: bestplace.biz | Web: seo-diy.com
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Re: [PHP] output buffering in CLI script.
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a
CLI script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop
the shebang line that *may*
be present in the included script from being output to stdout.
On my local machine here PHP does not output the shebang line. AFAIK
it detects and strips it at the compilation phase. Have you tried it?
-Stut
--
http://stut.net/
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Re: [PHP] output buffering in CLI script.
On 28 Feb 2008, at 11:52, Stut wrote:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a
CLI script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop
the shebang line that *may*
be present in the included script from being output to stdout.
On my local machine here PHP does not output the shebang line. AFAIK
it detects and strips it at the compilation phase. Have you tried it?
Hang on, ignore that. You're including the file, not running it on the
CLI.
What do you mean when you say it doesn't work? Do you mean you get no
output?
I suggest you remove the @ at the start of the include while
developing it. Or alternatively spit something out after you call
ob_end_clean so you know it couldn't include the file.
-Stut
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Re: [PHP] output buffering in CLI script.
Andrés Robinet schreef:
-Original Message-
From: Jochem Maas [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 28, 2008 6:39 AM
To: [php] PHP General List
Subject: [PHP] output buffering in CLI script.
hi there,
I can't seem to manage to buffer output (of an included file) in a CLI
script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
--
Aren't you deleting the output when you do ob_get_clean?
Meaning, you are missing an echo of the captured buffer, like:
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%', $output[0]))
unset($output[0]);
echo join(\n, $output); // You need to echo this, since you lost your buffer
by doing ob_get_clean
I'm retrieving the output buffer and shoving it in $output - which is
subsequently logged to a file. but output is not being buffered at all
regardless
of implicit_flush setting and/or use of ob_start()
:-(
Regards,
Rob
Andrés Robinet | Lead Developer | BESTPLACE CORPORATION
5100 Bayview Drive 206, Royal Lauderdale Landings, Fort Lauderdale, FL 33308 |
TEL 954-607-4207 | FAX 954-337-2695 |
Email: [EMAIL PROTECTED] | MSN Chat: [EMAIL PROTECTED] | SKYPE: bestplace |
Web: bestplace.biz | Web: seo-diy.com
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Re: [PHP] output buffering in CLI script.
Stut schreef:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a CLI
script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
On my local machine here PHP does not output the shebang line. AFAIK it
detects and strips it at the compilation phase. Have you tried it?
I have, I actually wrote the code assuming that the shebang line is
ignored (as I had experienced and read about ages ago), I was surprised
to see the shebang line output in the shell ... so I figured I'd just
buffer and strip the line manually given that php decided to treat the shebang
line as regular output when it's the first line of an *included* file ...
but no joy on getting output buffering to work in the shell, STFW didn't do it
for me either, so now I'm hassling you guys :-)
obviously the shebang line doesn't get output if I run said script directly
(or by using exec) ... and yes I need to be able to do it both ways :-)
-Stut
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Re: [PHP] output buffering in CLI script.
Stuart Dallas schreef:
On 28 Feb 2008, at 11:52, Stut wrote:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a
CLI script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
On my local machine here PHP does not output the shebang line. AFAIK
it detects and strips it at the compilation phase. Have you tried it?
Hang on, ignore that. You're including the file, not running it on the CLI.
What do you mean when you say it doesn't work? Do you mean you get no
output?
I mean that the shebang line at the top of the included file is output
to stdout even when I turn on output buffering on prior to including the file.
nothing else is output but that's because the script doesn't generate any
further
output - it logs everything instead - and I know it runs because the relevant
lines
appear in the relevant log file.
I suggest you remove the @ at the start of the include while developing
it. Or alternatively spit something out after you call ob_end_clean so
you know it couldn't include the file.
the @ is niether here nor there with regard to the problem I have, well more
of an annoyance - nobody is going get hurt by some spurious output to stdout but
it looks messy.
just to clarify - I need to be able to run the script directly (as an
executable) and
be able to include it within another script ... so the shebang line is needed
(well I could hack around it with a wrapper script to use directly on the
command line
or run it using /usr/bin/php foo.php ... but I don't find either of those
satisfactory)
-Stut
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Re: [PHP] output buffering in CLI script.
Jochem Maas wrote:
Stut schreef:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a
CLI script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
On my local machine here PHP does not output the shebang line. AFAIK
it detects and strips it at the compilation phase. Have you tried it?
I have, I actually wrote the code assuming that the shebang line is
ignored (as I had experienced and read about ages ago), I was surprised
to see the shebang line output in the shell ... so I figured I'd just
buffer and strip the line manually given that php decided to treat the
shebang
line as regular output when it's the first line of an *included* file ...
but no joy on getting output buffering to work in the shell, STFW didn't
do it
for me either, so now I'm hassling you guys :-)
obviously the shebang line doesn't get output if I run said script directly
(or by using exec) ... and yes I need to be able to do it both ways :-)
-Stut
bit of false logic here but have you tried:
eval(ltrim(file_get_contents($script),$shebang));
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Re: [PHP] output buffering in CLI script.
On 28 Feb 2008, at 12:29, Jochem Maas wrote:
Stuart Dallas schreef:
On 28 Feb 2008, at 11:52, Stut wrote:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in
a CLI script,
the following does not work:
// buffer output so we can avoid the shebang
line being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop
the shebang line that *may*
be present in the included script from being output to stdout.
This works...
test.php
#!/usr/bin/php
?php
echo arse\n;
echo Inc('testinc.php');
function Inc($f)
{
ob_start();
@include($f);
$content = ob_get_contents();
ob_end_clean();
if (substr($content, 0, 2) == '#!')
{
$content = substr($content, strpos($content, \n)+1);
}
return $content;
}
/test.php
testinc.php
#!/usr/bin/php
?php
echo testinc\n;
/testinc.php
output
[EMAIL PROTECTED]:~$ ./test.php
arse
testinc
/output
-Stut
--
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Re: [PHP] output buffering in CLI script.
Jochem Maas wrote:
I mean that the shebang line at the top of the included file is output
to stdout even when I turn on output buffering on prior to including
the file.
nothing else is output but that's because the script doesn't generate
any further
output - it logs everything instead - and I know it runs because the
relevant lines
appear in the relevant log file.
I don't know what goes wrong here. I took your script and it just works,
so it is not your code (I guess).
I've done this:
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if (!include 'scrap2.php') {
ob_end_clean();
}
else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!%', $output[0]))
unset($output[0]);
echo implode(\n, $output);
}
ini_set('implicit_flush', $oldIFvalue);
The only difference is it echoes imploded $output. And I do a bit
different preg_match ^#! instead of ^#!\/
If you can include the script you want to include, than it should work.
If you can buffer output without the include file, than it should work.
If you can dump $output after you've done the explode, than it should work.
So, I don't know what goes wrong.
--
Aschwin Wesselius
social
What you would like to be done to you, do that to the other
/social
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Re: [PHP] output buffering in CLI script.
Nathan Rixham schreef: Jochem Maas wrote: ... -Stut bit of false logic here but have you tried: eval(ltrim(file_get_contents($script),$shebang)); haven't tried it, did consider it. I hate eval() :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] [SOLVEDish] Re: [PHP] output buffering in CLI script.
Stuart Dallas schreef:
On 28 Feb 2008, at 12:29, Jochem Maas wrote:
Stuart Dallas schreef:
On 28 Feb 2008, at 11:52, Stut wrote:
On 28 Feb 2008, at 11:39, Jochem Maas wrote:
I can't seem to manage to buffer output (of an included file) in a
CLI script,
the following does not work:
// buffer output so we can avoid the shebang line
being output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%',
$output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop
the shebang line that *may*
be present in the included script from being output to stdout.
This works...
indeed ... I tested it and it works on my server too. my code is no different
to yours with regard to the context of the problem. so what's going on.
I think (I know) I forgot to mention one tiny little detail.
the whole 'include' code occurs in a script that forks itself ...
the script forks itself a number of times and each child then performs
the include.
so I tested the fork issue with your script ... it still bloody works,
(see the for loop below) so it's something else ... I thought it might
be the difference between using ob_get_clean() and
ob_get_contents()+ob_end_clean()
but that doesn't seem to be it either.
the worse thing is my script has just stopped outputting the shebang lines of
the included script(s) ... oh well ... the problem is solved, dunno how, dunno
why,
situations like these I'd rather the problem didn't go away .. I prefer to know
wtf happened!
test.php
#!/usr/bin/php
?php
echo arse\n;
for ($i = 0; $i 3; $i++) {
$pid = pcntl_fork();
if ($pid == 0) {
echo Inc('testinc.php');
exit;
}
}
function Inc($f)
{
ob_start();
@include($f);
$content = ob_get_contents();
ob_end_clean();
if (substr($content, 0, 2) == '#!')
{
$content = substr($content, strpos($content, \n)+1);
}
return $content;
}
/test.php
testinc.php
#!/usr/bin/php
?php
echo testinc\n;
/testinc.php
output
[EMAIL PROTECTED]:~$ ./test.php
arse
testinc
/output
-Stut
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[PHP] Re: [SOLVEDish] Re: [PHP] output buffering in CLI script.
how's this?
#!/usr/bin/php
?php
class trimshebang {
function filter($in, $out, $consumed, $closing)
{
while ($bucket = stream_bucket_make_writeable($in)) {
$bucket-data = ltrim($bucket-data,#!/usr/bin/php\n);
$consumed += $bucket-datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_PASS_ON;
}
}
stream_filter_register(trim.shebang, trimshebang);
include php://filter/read=trim.shebang/resource=/path/to/include.php;
?
bit more graceful ;)
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Re: [PHP] Re: [SOLVEDish] Re: [PHP] output buffering in CLI script.
Nathan Rixham wrote:
how's this?
#!/usr/bin/php
?php
class trimshebang {
function filter($in, $out, $consumed, $closing)
{
while ($bucket = stream_bucket_make_writeable($in)) {
$bucket-data = ltrim($bucket-data,#!/usr/bin/php\n);
$consumed += $bucket-datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_PASS_ON;
}
}
stream_filter_register(trim.shebang, trimshebang);
include php://filter/read=trim.shebang/resource=/path/to/include.php;
?
bit more graceful ;)
Me thinks that when shebang doesn't fit /usr/bin/php (which happens
sometimes) you're doomed.
But it still is a nice example.
--
Aschwin Wesselius
social
What you would like to be done to you, do that to the other
/social
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Re: [PHP] Re: [SOLVEDish] Re: [PHP] output buffering in CLI script.
Aschwin Wesselius wrote:
Me thinks that when shebang doesn't fit /usr/bin/php (which happens
sometimes) you're doomed.
[snip]
good point.. modified to use BINDIR:
#!/usr/bin/php
?php
class trimshebang {
function filter($in, $out, $consumed, $closing)
{
while ($bucket = stream_bucket_make_writeable($in)) {
$bucket-data = ltrim($bucket-data,#!.PHP_BINDIR./php\n);
$consumed += $bucket-datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_PASS_ON;
}
}
stream_filter_register(trim.shebang, trimshebang);
include php://filter/read=trim.shebang/resource=/path/to/include.php;
?
But it still is a nice example.
thanks :)
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Re: [PHP] [NOT SOLVEDish] Re: [PHP] output buffering in CLI script.
Jochem Maas schreef:
...
indeed ... I tested it and it works on my server too. my code is no
different
to yours with regard to the context of the problem. so what's going on.
I think (I know) I forgot to mention one tiny little detail.
the whole 'include' code occurs in a script that forks itself ...
the script forks itself a number of times and each child then performs
the include.
so I tested the fork issue with your script ... it still bloody works,
(see the for loop below) so it's something else ... I thought it might
be the difference between using ob_get_clean() and
ob_get_contents()+ob_end_clean()
but that doesn't seem to be it either.
the worse thing is my script has just stopped outputting the shebang
lines of
the included script(s) ... oh well ... the problem is solved, dunno how,
dunno why,
situations like these I'd rather the problem didn't go away .. I prefer
to know
wtf happened!
wtf happened was I was looking at the wrong output. I changed my code to
be as much like your test code as possible (to the point that I now
use a function to perform the buffering and 'include' and returning output) ...
the output buffering is not working at all.
I've had enough - /dev/null meet script output, output meet /dev/null
test.php
#!/usr/bin/php
?php
echo arse\n;
for ($i = 0; $i 3; $i++) {
$pid = pcntl_fork();
if ($pid == 0) {
echo Inc('testinc.php');
exit;
}
}
function Inc($f)
{
ob_start();
@include($f);
$content = ob_get_contents();
ob_end_clean();
if (substr($content, 0, 2) == '#!')
{
$content = substr($content, strpos($content, \n)+1);
}
return $content;
}
/test.php
testinc.php
#!/usr/bin/php
?php
echo testinc\n;
/testinc.php
output
[EMAIL PROTECTED]:~$ ./test.php
arse
testinc
/output
-Stut
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Re: [PHP] Re: [SOLVEDish] Re: [PHP] output buffering in CLI script.
Nathan Rixham schreef:
how's this?
#!/usr/bin/php
?php
class trimshebang {
function filter($in, $out, $consumed, $closing)
{
while ($bucket = stream_bucket_make_writeable($in)) {
$bucket-data = ltrim($bucket-data,#!/usr/bin/php\n);
$consumed += $bucket-datalen;
stream_bucket_append($out, $bucket);
}
return PSFS_PASS_ON;
}
}
stream_filter_register(trim.shebang, trimshebang);
include php://filter/read=trim.shebang/resource=/path/to/include.php;
?
bit more graceful ;)
it's sick, I like it, nice example of streams filtering while your at it.
I learned something! it also works in so far that the shebang line is no longer
output but the output buffering in *my* script(s) doesn't work, whilst the same
construction does work in Stut's test scripts (although whilst playing with
his script I did manage to bork ik so that the output buffering *doesn't* work
there anymore ... how I did that I can't fathom)
anyway - they problem has been nicely shoved under the carpet. apart from
the shebang lines the script don't ever output anything anyway but rather
log to files ... a simple redirect output to /dev/null in the command line
that is used to run the 'master' script will take care of any spurious cruft
ending up on screen.
thanks to everyone for their input regarding my output! :-)
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Re: [PHP] output buffering in CLI script.
On Thu, Feb 28, 2008 at 3:39 AM, Jochem Maas [EMAIL PROTECTED] wrote:
hi there,
I can't seem to manage to buffer output (of an included file) in a CLI
script,
the following does not work:
// buffer output so we can avoid the shebang line being
output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%', $output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the
shebang line that *may*
be present in the included script from being output to stdout.
I use Windows, so I don't need the shebang line. But if I'm correct
and the shebang line is:
#!/usr/bin/php
, shouldn't it be considered a comment, because of the #?
--
-Casey
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Re: [PHP] output buffering in CLI script.
Casey wrote:
On Thu, Feb 28, 2008 at 3:39 AM, Jochem Maas [EMAIL PROTECTED] wrote:
hi there,
I can't seem to manage to buffer output (of an included file) in a CLI script,
the following does not work:
// buffer output so we can avoid the shebang line being
output (and strip it from the output we log)
$oldIFvalue = ini_set('implicit_flush', false);
ob_start();
if ([EMAIL PROTECTED] $script) {
ob_end_clean();
} else {
$output = explode(\n, ob_get_clean());
if ($output[0] preg_match('%^#!\/%', $output[0]))
unset($output[0]);
}
ini_set('implicit_flush', $oldIFvalue);
the reason I'm wanting to do this is, primarily, in order to stop the shebang
line that *may*
be present in the included script from being output to stdout.
I use Windows, so I don't need the shebang line. But if I'm correct
and the shebang line is:
#!/usr/bin/php
, shouldn't it be considered a comment, because of the #?
nope, because it comes before the ?php in the file
If it were after the ?php then it would be considered a comment.
Jim
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