note 20397 added to language.references

If you want to check whether there is a reference between two variables you can use this function. function check_reference(&$var1, &$var2) { // Save old values $var1_old = $var1; $var2_old = $var2; // ($var1 . ".") must not be $var2 if($var1 . "." == $var2) $var1 .= "."; // Change $var1 $var1 .= "."; // Did $var2 also change? if($var2 == $var1) $reference = true; else $reference = false; // Old values $var1 = $var1_old; $var2 = $var2_old; return $reference; } -- http://www.php.net/manual/en/language.references.php http://master.php.net/manage/user-notes.php?action=edit+20397 http://master.php.net/manage/user-notes.php?action=delete+20397 http://master.php.net/manage/user-notes.php?action=reject+20397