note 71203 added to language.oop5.constants

From: Date: Thu, 16 Nov 2006 06:20:38 +0000
Subject: note 71203 added to language.oop5.constants
Groups: php.notes 
Request: Send a blank email to php-notes+get-119797@lists.php.net to get a copy of this message
If you would like to generate a constant names dynamically, then one could use the functions defined() and constant(): class CONFIG { const MYCONST1 = 'Hello '; const MYCONST2 = 'World'; public static function get($_name) { if(defined("self::$_name")) return constant("self::$_name"); throw new Exception('Constant ' . $_name . ' is not defined'); } } $vars = array(1,2); try { foreach($vars as $const_suffix) { echo CONFIG::get('MYCONST' . $const_suffix); } } catch (Exception $e) { $msg = $e->getMessage(); echo $msg; } Output will print: Hello World ---- Server IP: 216.194.113.175 Probable Submitter: 71.227.160.115 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.constants.php Edit -- https://master.php.net/note/edit/71203 Del: integrated -- https://master.php.net/note/delete/71203/integrated Del: useless -- https://master.php.net/note/delete/71203/useless Del: bad code -- https://master.php.net/note/delete/71203/bad+code Del: spam -- https://master.php.net/note/delete/71203/spam Del: non-english -- https://master.php.net/note/delete/71203/non-english Del: in docs -- https://master.php.net/note/delete/71203/in+docs Del: other reasons-- https://master.php.net/note/delete/71203 Reject -- https://master.php.net/note/reject/71203 Search -- https://master.php.net/manage/user-notes.php

« previous php.notes (#119797) next »