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run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('display_errors', true); error_reporting(E_ALL); abstract class papa { public function papa() { var_dump(__CLASS__ . '-' . __FUNCTION__); } } class son extends papa { public function son() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::__construct(); } } abstract class mama { public function __construct() { var_dump(__CLASS__ . '-' . __FUNCTION__); } public function mama() { var_dump(__CLASS__ . '-' . __FUNCTION__); } } class daughter1 extends mama { public function daughter() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::__construct(); } } class daughter2 extends mama { public function daughter() { var_dump(__CLASS__ . '-' . __FUNCTION__); parent::mama(); } } var_dump('DAUGHTER calls parent::__construct'); $girl1 = new daughter1(); var_dump('DAUGHTER calls parent::mama'); $girl2 = new daughter2(); var_dump('SON'); $boy = new son();
based on uIkbe
Output for 7.0.0 - 7.3.0rc4
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; papa has a deprecated constructor in /in/sv32G on line 6 Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; son has a deprecated constructor in /in/sv32G on line 12 string(34) "DAUGHTER calls parent::__construct" string(16) "mama-__construct" string(27) "DAUGHTER calls parent::mama" string(16) "mama-__construct" string(3) "SON" string(7) "son-son" string(9) "papa-papa"
Output for 5.3.20 - 5.6.28
string(34) "DAUGHTER calls parent::__construct" string(16) "mama-__construct" string(27) "DAUGHTER calls parent::mama" string(16) "mama-__construct" string(3) "SON" string(7) "son-son" string(9) "papa-papa"