note 60399 added to function.get-defined-constants

If you want to filter through and return only the prefix for your constants (i.e. you have constants with a naming scheme), then you can use this quick little function. It comes in handy for debugging. <?php function returnConstants ($prefix) { foreach (get_defined_constants() as $key=>$value) if (substr($key,0,strlen($prefix))==$prefix) $dump[$key] = $value; if(empty($dump)) { return "Error: No Constants found with prefix '".$prefix."'"; } else { return $dump; } } ?> Example: <?php define("SITENAME_OPTION_ONE",true); define("SITENAME_OPTION_TWO",false); define("SITENAME_URL","foo"); print_r(returnConstants("SITENAME_OPTION")); ?> Will return: Array ( [SITENAME_OPTIONONE] => 1 [SITENAME_OPTIONTWO] => ) ---- Manual Page -- http://www.php.net/manual/en/function.get-defined-constants.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60399 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60399&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60399&report=yes Search -- http://master.php.net/manage/user-notes.php