note 100209 added to language.oop5

When you have a class name in a variable and want to create a new instance of that class, you can simply use: <?php $className = "ClassName"; $instance = new $className(); ?> If, however, you have a class that is part of a singleton pattern where you cannot create it with new and need to use: <?php $instance = ClassName::GetInstance(); ?> ...you quickly discover that it fails miserably with a variable. Fail Example: <?php $className = "ClassName"; $instance = $className::GetInstance(); ?> After a few days of head pounding, I finally put together this workaround: <?php $className = "ClassName"; eval('$instance = '.$className.'::GetInstance();'); ?> I hope this saves you some effort and if anyone knows of a non-eval method to accomplish this, please share! Thanks! ---- Server IP: 69.147.83.197 Probable Submitter: 99.22.215.240 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.php Edit -- https://master.php.net/note/edit/100209 Del: integrated -- https://master.php.net/note/delete/100209/integrated Del: useless -- https://master.php.net/note/delete/100209/useless Del: bad code -- https://master.php.net/note/delete/100209/bad+code Del: spam -- https://master.php.net/note/delete/100209/spam Del: non-english -- https://master.php.net/note/delete/100209/non-english Del: in docs -- https://master.php.net/note/delete/100209/in+docs Del: other reasons-- https://master.php.net/note/delete/100209 Reject -- https://master.php.net/note/reject/100209 Search -- https://master.php.net/manage/user-notes.php