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run code in 300+ PHP versions simultaneously
<?php class myClass { public function add() : self { /** code **/ return $this; } } class myExtendedClass extends myClass { public function add() : parent { return $this; } } $instance = new myExtendedClass(); $instance->add();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 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
Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.23
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/mT5A2 on line 5
Process exited with code 255.
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192.26 ms | 402 KiB | 249 Q