note 99900 added to keyword.extends

One thing I figured out after a long time about extending a parent class that, if the child class does not have any construct function, it will use its parent's construct. for example: class Main { public $a; public function __construct() { echo '::Parent Class initiated::'; $this -> a = 'we are in the parent class'; } } class Child extends Main { public function getA() { return $this -> a; } } $main = new Main(); $main -> child = new Child; echo $main -> child -> getA(); //Output - ::Parent Class initiated::::Parent Class initiated::we are in the parent class However, If we have a constructor in the child class as well: class Child extends Main { public function __construct() { } public function getA() { return $this -> a; } } Then : $main = new Main(); $main -> child = new Child; echo $main -> child -> getA(); // Output - ::Parent Class initiated:: Note that the parent variable 'a' is not inherited by the child class if the constructor from the parent class isnt called. This behaviour of extension made me waste a lot of my precious time, as I could not understand why some of my child classes were inheriting parent variables and some were not. Hope this helps someone.. ---- Server IP: 69.147.83.197 Probable Submitter: 118.103.227.199 ---- Manual Page -- http://www.php.net/manual/en/keyword.extends.php Edit -- https://master.php.net/note/edit/99900 Del: integrated -- https://master.php.net/note/delete/99900/integrated Del: useless -- https://master.php.net/note/delete/99900/useless Del: bad code -- https://master.php.net/note/delete/99900/bad+code Del: spam -- https://master.php.net/note/delete/99900/spam Del: non-english -- https://master.php.net/note/delete/99900/non-english Del: in docs -- https://master.php.net/note/delete/99900/in+docs Del: other reasons-- https://master.php.net/note/delete/99900 Reject -- https://master.php.net/note/reject/99900 Search -- https://master.php.net/manage/user-notes.php