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run code in 200+ php & hhvm versions
Bugs & Features
<?php $class_aliases = [ 'FooAlias' => 'Foo' ]; spl_autoload_register(function($class) { if (isset($class_aliases[$class])) { class_alias($class_aliases[$class], $class); return true; } }); class Foo {} class Bar extends Foo {} class FooCreator { public function create(FooAlias $foo) { } } $foo = new Bar; $creator = new FooCreator(); $creator->create($foo);
based on 6TQdc
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Argument 1 passed to FooCreator::create() must be an instance of FooAlias, instance of Bar given, called in /in/ILaN9 on line 28 and defined in /in/ILaN9:20 Stack trace: #0 /in/ILaN9(28): FooCreator->create(Object(Bar)) #1 {main} thrown in /in/ILaN9 on line 20
Process exited with code 255.
Output for 5.4.9 - 5.6.28
Catchable fatal error: Argument 1 passed to FooCreator::create() must be an instance of FooAlias, instance of Bar given, called in /in/ILaN9 on line 28 and defined in /in/ILaN9 on line 20
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ILaN9 on line 3
Process exited with code 255.