3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {} class B extends A {} class C extends B {} class D extends C {} var_export('D' instanceof B);
Output for 7.3.16 - 7.3.33, 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
false
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.27, 7.2.29 - 7.2.33
Fatal error: instanceof expects an object instance, constant given in /in/Avro9 on line 11
Process exited with code 255.
preferences:
153.09 ms | 402 KiB | 197 Q