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run code in 500+ PHP versions simultaneously
<?php class X { public private(set) string $x; } class Y extends X { public string $x; }
Output for 8.3.5
Fatal error: Multiple access type modifiers are not allowed in /in/2mTbO on line 4
Process exited with code 255.
Output for 8.4.1
Fatal error: Cannot override final property X::$x in /in/2mTbO on line 7
Process exited with code 255.
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30.68 ms | 1139 KiB | 6 Q