note 102479 added to function.proc-open

Elaborating on what php at keith tyler dot com said on 16-Apr-2010 06:32: Not only must you store the return value: <?php $proc=proc_open(....); ?> But you must also keep it 'alive' in the current scope. Example: <?php function openproc() { $proc=proc_open("php -f childscript.php", array(), $tmp); echo "Opened process.\n"; return TRUE; } openproc(); echo "The child process is running!"; ?> The first message "Opened process." will be displayed and then.....PHP will hang until the child process dies. Because at the "return TRUE;" statement, the $proc variable (holding the return value from proc_open() ) goes out of the current scope. Since the return value from proc_open() is no longer accessible, PHP strangely hangs. The second message "The child process is running!" will not be displayed until AFTER the child process has terminated. Tested with PHP 5.2.7. ---- Server IP: 69.147.83.197 Probable Submitter: 98.16.181.164 ---- Manual Page -- http://www.php.net/manual/en/function.proc-open.php Edit -- https://master.php.net/note/edit/102479 Del: integrated -- https://master.php.net/note/delete/102479/integrated Del: useless -- https://master.php.net/note/delete/102479/useless Del: bad code -- https://master.php.net/note/delete/102479/bad+code Del: spam -- https://master.php.net/note/delete/102479/spam Del: non-english -- https://master.php.net/note/delete/102479/non-english Del: in docs -- https://master.php.net/note/delete/102479/in+docs Del: other reasons-- https://master.php.net/note/delete/102479 Reject -- https://master.php.net/note/reject/102479 Search -- https://master.php.net/manage/user-notes.php