From: [EMAIL PROTECTED]
Operating system: RedHat 7.1
PHP version: 4.0.4pl1
PHP Bug Type: Output Control
Bug description: Passthru doesn't honor ob_immediate_flush
Given a perl script test.pl:
#!/usr/bin/perl
$| = 1; # immediate flush
for ($i=0;$i<10;$i++) {
print "*";
sleep(2);
}
exit;
And a php script test.php:
<?
header("Content-Type: text/plain");
ob_immediate_flush; # here or in php.ini
echo "calling test.pl\n";
passthru("/path/to/test.pl");
echo "finished\n";
?>
Eventhough both scripts have buffering disabled, no progressive content
loading happens. PHP autoflushes the first echo-line, but passthru-output
is not flushed until the test.pl script has completed.
There are situations where this behavior is no good. I have perl-scripts
doing jobs on our server. These perl-scripts are called from a webpage (aka
php-script). However, an inbetween firewall shuts down communication after
5 mins with no data transferred. In order to keep the connection alive, I
rewrote the perl-scripts such as to send a progress character to the
browser every 30 seconds. Not being autoflushed, they don't keep alive
anything :-)
--
Edit bug report at: http://bugs.php.net/?id=13430&edit=1
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