note 115800 added to language.oop5.abstract

Just in case you are confused about function arguments: /*************Example 1********************/ abstract class my_class { abstract public function my_function($number); } class subclass extends my_class { public function my_function($new_number, $string = ' is an integer!!!') { echo $new_number . $string; } } $var = new subclass(); $var->my_function(1024); //this will output: 1024 is an integer!!! /*************Example 2********************/ abstract class my_class { abstract public function my_function($number); } class subclass extends my_class { //now $string = ' is a float!!!' public function my_function($new_number, $string = ' is a float!!!') { echo $new_number . $string; } } $var = new subclass(); //added ' is an integer' $var->my_function(1024, ' is an integer!!!'); //this will output: 1024 is an integer!!!, rewrote $string. /*************Example 3********************/ abstract class my_class { abstract public function my_function($number); } class subclass extends my_class { //now $string isn't initialized public function my_function($new_number, $string ) { echo $new_number . $string; } } $var = new subclass(); $var->my_function(1024, ' is an integer!!!'); /*this will trigger a fatal error of incompatibility between subclass::my_function() and my_class::my_function($number)*/ /*************Example 4********************/ abstract class my_class { abstract public function my_function($number); } class subclass extends my_class { public function my_function($new_number, $string ) { echo $new_number . $string; } } $var = new subclass(); //no second argument, no matter $var->my_function(1024);//fatal error too. Optional arguments have to be initialized in the extending class function. ---- Server IP: 72.52.91.14 Probable Submitter: 201.226.182.16 ---- Manual Page -- http://php.net/manual/en/language.oop5.abstract.php Edit -- https://master.php.net/note/edit/115800 Del: integrated -- https://master.php.net/note/delete/115800/integrated Del: useless -- https://master.php.net/note/delete/115800/useless Del: bad code -- https://master.php.net/note/delete/115800/bad+code Del: spam -- https://master.php.net/note/delete/115800/spam Del: non-english -- https://master.php.net/note/delete/115800/non-english Del: in docs -- https://master.php.net/note/delete/115800/in+docs Del: other reasons-- https://master.php.net/note/delete/115800 Reject -- https://master.php.net/note/reject/115800 Search -- https://master.php.net/manage/user-notes.php