note 50524 added to ref.classobj

From: Date: Wed, 02 Mar 2005 18:25:44 +0000
Subject: note 50524 added to ref.classobj
Groups: php.notes 
Request: Send a blank email to php-notes+get-85810@lists.php.net to get a copy of this message
to covertka at muohio dot edu and pillepop2003 at yahoo dot de: There's a much easier solution to getting a class' name for working with a factory function. Let's assume you're doing something like this: <?php function FactoryFunction($whatever, $instancedata) { switch ($whatever) { case 'stuff' : return new Stuff($instancedata); case 'otherstuff' : return new Otherstuff($instancedata); } } ?> Now, consider the named parameter idiom and remember that PHP uses hashes for everything; as a result make the following changes: <?php function FactoryFunction($whatever, $instancedata) { switch ($whatever) { case 'stuff' : return array('typeis'=>'stuff', 'instance'=>new Stuff($instancedata)); case 'otherstuff' : return array('typeis'=>'otherstuff', 'instance'=>new Otherstuff($instancedata)); } } ?> Nice 'n simple. It seems that what the original poster wanted was something like C++ static data members; unfortunately as PHP4 has no static variables at all, there would need to be significant language change to support static-like behavior. If you move to PHP5, the static keyword solves your problem cleanly. ---- Manual Page -- http://www.php.net/manual/en/ref.classobj.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50524 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50524&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50524&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50524&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50524&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50524&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50524&report=yes Search -- http://master.php.net/manage/user-notes.php

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