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run code in 200+ php & hhvm versions
Bugs & Features
<?php class Shirt { public function test() { return "Shirt"; } } class Sweater extends Shirt { public function test() { return "Sweater"; } public function doSweaterStuff() { echo "This is a sweater!"; } } $shirt = new Shirt(); output_shirt($shirt); function output_shirt(Sweater $sweater) { $sweater->doSweaterStuff(); echo $sweater->test(); }
based on 91TQB
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Argument 1 passed to output_shirt() must be an instance of Sweater, instance of Shirt given, called in /in/u7gXP on line 29 and defined in /in/u7gXP:31 Stack trace: #0 /in/u7gXP(29): output_shirt(Object(Shirt)) #1 {main} thrown in /in/u7gXP on line 31
Process exited with code 255.
Output for 5.3.19 - 5.6.28
Catchable fatal error: Argument 1 passed to output_shirt() must be an instance of Sweater, instance of Shirt given, called in /in/u7gXP on line 29 and defined in /in/u7gXP on line 31
Process exited with code 255.