3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(): int { static $x = 1; return $x; static $x = 2; } echo foo();
Output for 8.3.0 - 8.3.4
Fatal error: Duplicate declaration of static variable $x in /in/PEeIJ on line 7
Process exited with code 255.
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17
2

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102.05 ms | 402 KiB | 85 Q