note 95303 added to function.getmypid
| From: | james at voodoo dot co dot uk | Date: | Fri, 25 Dec 2009 09:50:01 +0000 |
| Subject: | note 95303 added to function.getmypid | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-164321@lists.php.net to get a copy of this message | ||
The 'ps' command has an option that can make filtering for a specific process more
efficient. Using this the work of looking for matching processes can be made neater:
<?php
/*
Return an array of the pids of the processes that are running for the specific command
e.g.
returnPids('myprocess.php');
*/
function returnPids($command) {
exec("ps -C $command -o pid=",$pids);
foreach ($pids as $key=>$value) $pids[$key]=trim($value);
return $pids;
}
/*
Returns an array of the pids for processes that are like me, i.e. my program running
*/
function returnMyPids() {
return returnPids(basename($_SERVER["SCRIPT_NAME"]));
}
?>
e.g. to bomb out if I'm running already
if (count(returnMyPids())>1) exit;
----
Server IP: 69.147.83.197
Probable Submitter: 80.5.46.222
----
Manual Page -- http://www.php.net/manual/en/function.getmypid.php
Edit -- https://master.php.net/note/edit/95303
Del: integrated -- https://master.php.net/note/delete/95303/integrated
Del: useless -- https://master.php.net/note/delete/95303/useless
Del: bad code -- https://master.php.net/note/delete/95303/bad+code
Del: spam -- https://master.php.net/note/delete/95303/spam
Del: non-english -- https://master.php.net/note/delete/95303/non-english
Del: in docs -- https://master.php.net/note/delete/95303/in+docs
Del: other reasons-- https://master.php.net/note/delete/95303
Reject -- https://master.php.net/note/reject/95303
Search -- https://master.php.net/manage/user-notes.php