note 66348 added to migration5.oop

Here is another possible solution for migrating code to php 5 when using $this = 'something' reassignments. In my case, I had several classes with methods that were self-instantiating with static calls. I was able to simply use a different variable: I changed $this to $_this and it worked the same because I copied an instance of the original object by reference using an instantiation factory method: class DB { function &getInstance() { static $instance = null; if ($instance === null) { $instance = new DB(); } return $instance; } ... In every method needing access to this object I assigned it to a temporary variable by reference: function doSomething () { $_this =& DB::getInstance(); $_this->doSomethingElse(); $_this->param['id'] = 123; } Which allows method calls or saving data back to the original object. I originally created classes like this so I didn't need to keep track of instantiations or global objects. I could just call DB::doSomething() and the object is created dynamically or referenced from an already existing object. ---- Server IP: 64.71.164.2 Probable Submitter: 63.195.16.136 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/migration5.oop.php Edit -- http://master.php.net/note/edit/66348 Del: integrated -- http://master.php.net/note/delete/66348/integrated Del: useless -- http://master.php.net/note/delete/66348/useless Del: bad code -- http://master.php.net/note/delete/66348/bad+code Del: spam -- http://master.php.net/note/delete/66348/spam Del: non-english -- http://master.php.net/note/delete/66348/non-english Del: in docs -- http://master.php.net/note/delete/66348/in+docs Del: other reasons-- http://master.php.net/note/delete/66348 Reject -- http://master.php.net/note/reject/66348 Search -- http://master.php.net/manage/user-notes.php