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<?php trait FooTrait { protected $foo = 'configuration'; abstract protected function bar(); protected function doThing() { return $this->foo; } } class Foo { use FooTrait; public function thing() { echo $this->doThing(); } } class Bar extends Foo { protected $foo = 'asdf'; public function thing() { echo $this->doThing(); } } $foo = new Foo(); $foo->thing(); $bar = new Bar(); $bar->thing();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Class Foo contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Foo::bar) in /in/FMXnr on line 10
Process exited with code 255.

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