#37316 [NEW]: exec() don't work

From: ale5000 at tiscali dot it Operating system: Windows XP PHP version: 5.1.3 PHP Bug Type: Unknown/Other Function Bug description: exec() don't work Description: ------------ I have PHP 5.1.3 on IIS server 5.1 installed as ISAPI and exec() says: Warning: exec() [function.exec]: Unable to fork [tasklist /FI "PID eq 2624" /FO LIST] Reproduce code: --------------- if( !function_exists("memory_get_usage") ) { function memory_get_usage() { $pid = getmypid(); if ( substr( PHP_OS, 0, 3 ) == 'WIN' ) { $output = array(); exec( "tasklist /FI \"PID eq ".$pid."\" /FO LIST", $output ); return preg_replace( '/[^0-9]/', '', $output[5] ) * 1024; } else { exec( "ps -eo%mem,rss,pid | grep ".$pid, $output ); $output = explode(" ", $output[0]); return $output[1] * 1024; } } } Expected result: ---------------- The memory used by the script. Actual result: -------------- Warning: exec() [function.exec]: Unable to fork [tasklist /FI "PID eq 2624" /FO LIST] -- Edit bug report at http://bugs.php.net/?id=37316&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=37316&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=37316&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=37316&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=37316&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=37316&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=37316&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=37316&r=needscript Try newer version: http://bugs.php.net/fix.php?id=37316&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=37316&r=support Expected behavior: http://bugs.php.net/fix.php?id=37316&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=37316&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=37316&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=37316&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=37316&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=37316&r=dst IIS Stability: http://bugs.php.net/fix.php?id=37316&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=37316&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=37316&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=37316&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=37316&r=mysqlcfg