note 43295 added to function.exec

From: Date: Thu, 17 Jun 2004 00:28:53 +0000
Subject: note 43295 added to function.exec
Groups: php.notes 
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It is not clear what happens when the command cannot be executed. Sometimes $return_var gets set to 126 and other times it gets set to 127. It appears that if the command cannot be found then 127 is put in $return_var. If the command cannot be executed (in my case due to a missing library) then 126 is put in $return_var. In either case exec will return an empty string and not output an error message. Also $output is an empty array. I'm not sure if this is an undocumented feature or a bug. ---- Manual Page -- http://www.php.net/manual/en/function.exec.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+43295 Delete -- http://master.php.net/manage/user-notes.php?action=delete+43295&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+43295&report=yes Search -- http://master.php.net/manage/user-notes.php

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