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run code in 300+ PHP versions simultaneously
<?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, $class); } } class C extends B { public static function abc($class = self::class) { parent::abc(); } } $c = new C; C::ab(); $c->abc();

preferences:
59.73 ms | 402 KiB | 5 Q