#33296 [Opn->Fbk]: popen (passthru etc.) doesn't work correct

ID: 33296 Updated by: sniper@php.net Reported By: thomas dot wetzler at siemens dot com -Status: Open +Status: Feedback Bug Type: Program Execution Operating System: SUN OS PHP Version: 4.3.10 New Comment: Please try using this CVS snapshot: http://snaps.php.net/php4-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php4-win32-STABLE-latest.zip Try also the latest PHP 4 snapshot. Previous Comments: ------------------------------------------------------------------------ [2005-06-15 15:54:16] thomas dot wetzler at siemens dot com We tried out PHP Version 5. With the commandline (php.exe) it seems to work but with the mod_php-module we get the same failure. Because the testing of our application take a long time, it would be good if you can find a solution for Version 4. ------------------------------------------------------------------------ [2005-06-11 15:18:48] sniper@php.net Please try using this CVS snapshot: http://snaps.php.net/php5-latest.tar.gz For Windows: http://snaps.php.net/win32/php5-win32-latest.zip ------------------------------------------------------------------------ [2005-06-10 10:54:44] thomas dot wetzler at siemens dot com Description: ------------ While sequentially opening and closing several processes via popen (or passthru, exec and '' command) php looses some processes. This takes place if, for instance, the user presses the reload-button on a website several times. With the coding below, you can reproduce the failure (takes place on commandline (php.exe) and in apache module (mod_php)). Reproduce code: --------------- #!/wir/webadmin/share/php4/bin/php # <? for ($i=0; $i<900; $i++) { $statement = "ls -l"; echo "\n\n$i***************************\n"; $handle = popen($statement, 'r'); echo "Subprozess: '$handle'; " . gettype($handle) . "\n"; while (!feof($handle)) { echo fread($handle, 8192); } pclose($handle); } ?> programcall: <progname> > <resultfile> Expected result: ---------------- Within the result-file, there should be 900 times the same result from the system command (here ls -l command). 255*************************** Subprozess: 'Resource id #259'; resource total 2526 -rw-r--r-- 1 webadmin oracle 572135 Jun 10 09:52 _test1.txt drwxr-xr-x 2 wir oracle 96 May 2 15:27 mail -rw-r--r-- 1 wir oracle 258956 Jun 10 10:42 test -rwxrwx--- 1 wir oracle 698 Jun 10 10:41 test.php -rw-r--r-- 1 webadmin oracle 105326 Jun 10 09:52 test1 -rwxrwx--- 1 wir oracle 656 Jun 10 09:48 test1.php -rwxr-x--- 1 wir oracle 321 Jun 10 10:43 thomas.php -rw-r--r-- 1 wir oracle 148274 Jun 10 10:43 thw.txt Actual result: -------------- Some results are missing. The same programm written in perl or shellscript is working correct. -rwxr-x--- 1 wir oracle 321 Jun 10 10:43 thomas.php -rw-r--r-- 1 wir oracle 148274 Jun 10 10:43 thw.txt 256*************************** Subprozess: 'Resource id #260'; resource 257*************************** Subprozess: 'Resource id #261'; resource total 2526 -rw-r--r-- 1 webadmin oracle 572135 Jun 10 09:52 _test1.txt drwxr-xr-x 2 wir oracle 96 May ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33296&edit=1