note 118061 added to function.spl-autoload-register

A note on registering autoloading functions with additional parameters. ./alf.home.php <?php /* * class containing an autoloading function alias ALF :) */ class ALF { public function haaahaaahaaa($class = "ALF", $param = "Melmac") { echo "I am ".$class." from ".$param.".\n"; } } ?> ./kate.melmac.php <?php require_once("alf.home.php"); /* * the normal way is to get ALF * and register an autoloading function */ $alf = new ALF(); spl_autoload_register(array($alf,'haaahaaahaaa')); $alf->haaahaaahaaa(); // ALF is from Melmac :) /* * now lets try to autoload a class */ @$kate = new Kate(); // this throws a fatal error because // Kate is NOT from Melmac :) ?> I am ALF from Melmac. I am Kate from Melmac. ./kate.earth.php <?php require_once("alf.home.php"); /* * BUT what if we want to correct Kates origin ? * How can one pass parameters to an autoloading function * upon registering? * * spl_autoload_register is not suitable for that * but we can try is to define a callable during registration */ spl_autoload_register(function($class){ call_user_func(array(new ALF(),'haaahaaahaaa'), $class, "Earth"); }); /* * now lets try again to autoload a class * Kate will still not be found but we corrected her origin :) */ @$kate = new Kate(); // Kate is from Earth :) /* * NOTE: that you cannot pass $this or another object created * outside of the callable context using the * registering way above. therefor you should swap your autoloading * function to a seperate class as done at the beginning with ALF. * * NOTE: you may not able to unregister your autoloading function * directly as an instance was created in another context */ ?> I am Kate from Earth. ---- Server IP: 72.52.91.14 Probable Submitter: 62.158.71.244 ---- Manual Page -- http://php.net/manual/en/function.spl-autoload-register.php Edit -- https://master.php.net/note/edit/118061 Del: integrated -- https://master.php.net/note/delete/118061/integrated Del: useless -- https://master.php.net/note/delete/118061/useless Del: bad code -- https://master.php.net/note/delete/118061/bad+code Del: spam -- https://master.php.net/note/delete/118061/spam Del: non-english -- https://master.php.net/note/delete/118061/non-english Del: in docs -- https://master.php.net/note/delete/118061/in+docs Del: other reasons-- https://master.php.net/note/delete/118061 Reject -- https://master.php.net/note/reject/118061 Search -- https://master.php.net/manage/user-notes.php