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<?php class A { } class B extends A { public static function ab() { var_dump(self::class, static::class, parent::class); } public static function abc($class = self::class) { var_dump(self::class, static::class, parent::class, $class); } } class C extends B { public static function abc() { parent::abc(); } } $c = new C; C::ab(); $c->abc();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of C::abc() must be compatible with B::abc($class = 'B') in /in/r7NTZ on line 22
Process exited with code 255.

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