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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 = parent::class) { var_dump(self::class, static::class, parent::class, $class); } } class C extends B { } $c = new C; C::ab(); $c->abc();
Output for 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(1) "B" string(1) "C" string(1) "A" string(1) "B" string(1) "C" string(1) "A" string(1) "A"
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33
Fatal error: parent::class cannot be used for compile-time class name resolution in /in/e6EoQ on line 14
Process exited with code 255.
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/e6EoQ on line 11
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/e6EoQ on line 11
Process exited with code 255.
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