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run code in 500+ PHP versions simultaneously
<?php function &test() { static $a = 0; return $a; } print(++test()); print(++test()); print(++test());
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.5
Fatal error: Can't use function return value in write context in /in/lCOIR on line 8
Process exited with code 255.
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27.79 ms | 1137 KiB | 6 Q