note 53735 added to function.return

If you return a value that has not been set, or has been unset, the function will return that status instead. So, <?php $var1 = 1; function unsetVar($var) { unset($var); return $var; } $var1 = unsetVar($var1); // this will unset $var1 ?> This is useful in situations where we want to conditionally proceed based on the output of a function; for example, if (isset($fileListAsArray = functionGettingFileList())) { // our list exists, do whatever } else . . . // report error ---- Manual Page -- http://www.php.net/manual/en/function.return.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+53735 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+53735&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+53735&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+53735&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+53735&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+53735&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+53735&report=yes Search -- http://master.php.net/manage/user-notes.php