#35169 [NEW]: proc_get_status lost exitcode after second call

From: c dot affolter at stepping-stone dot ch Operating system: Linux version 2.4.21 PHP version: 5.1.0RC4 PHP Bug Type: Program Execution Bug description: proc_get_status lost exitcode after second call Description: ------------ After a process (via proc_open()) has exited, proc_get_status() returns the actual exit code (within array['exitcode']) of that process. If proc_get_status() gets called a second time, the previous exit code will be lost (-1), because the internal waitpid() function won't return the pid a second time. So, either this is a bug and proc_get_status() has to keep track of the exitcode value (as it does for 'command', 'pid' and 'running') or this behaviour should be mentioned in the documentation. Reproduce code: --------------- #!/usr/bin/env php <?php $descriptors = array( 0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('pipe', 'w')); $pipes = array(); $ressource = proc_open('/bin/true', $descriptors, $pipes); echo stream_get_contents($pipes[1]); // first call exitcode == 0 var_dump(proc_get_status($ressource)); // second call exitcode == -1 var_dump(proc_get_status($ressource)); fclose($pipes[1]); proc_close($ressource); ?> Expected result: ---------------- array(8) { ["command"]=> string(9) "/bin/true" ["pid"]=> int(31590) ["running"]=> bool(false) ["signaled"]=> bool(false) ["stopped"]=> bool(false) ["exitcode"]=> int(0) ["termsig"]=> int(0) ["stopsig"]=> int(0) } array(8) { ["command"]=> string(9) "/bin/true" ["pid"]=> int(31590) ["running"]=> bool(false) ["signaled"]=> bool(false) ["stopped"]=> bool(false) ["exitcode"]=> int(0) ["termsig"]=> int(0) ["stopsig"]=> int(0) } Actual result: -------------- array(8) { ["command"]=> string(9) "/bin/true" ["pid"]=> int(31590) ["running"]=> bool(false) ["signaled"]=> bool(false) ["stopped"]=> bool(false) ["exitcode"]=> int(0) ["termsig"]=> int(0) ["stopsig"]=> int(0) } array(8) { ["command"]=> string(9) "/bin/true" ["pid"]=> int(31590) ["running"]=> bool(false) ["signaled"]=> bool(false) ["stopped"]=> bool(false) ["exitcode"]=> int(-1) ["termsig"]=> int(0) ["stopsig"]=> int(0) } -- Edit bug report at http://bugs.php.net/?id=35169&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=35169&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=35169&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=35169&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=35169&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=35169&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=35169&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=35169&r=needscript Try newer version: http://bugs.php.net/fix.php?id=35169&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=35169&r=support Expected behavior: http://bugs.php.net/fix.php?id=35169&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=35169&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=35169&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=35169&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35169&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=35169&r=dst IIS Stability: http://bugs.php.net/fix.php?id=35169&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=35169&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=35169&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=35169&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=35169&r=mysqlcfg