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run code in 300+ PHP versions simultaneously
<?php interface EventInterface { const NAME = 'event.name'; public function getName(); } class NiceEvent implements EventInterface { const NAME = 'nice.event'; public function getName() { return self::NAME; } } $o = new NiceEvent; echo $o->getName();
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
nice.event
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Cannot inherit previously-inherited or override constant NAME from interface EventInterface in /in/BSYqf on line 10
Process exited with code 255.
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184.93 ms | 403 KiB | 182 Q