3v4l.org

run code in 300+ PHP versions simultaneously
<?php const FOO=1; class bar { static $v = [ FOO => 1, FOOX => 1, ]; static $w; } // If following line is commentted out, undefined constant error disappears. //var_dump(bar::$w);
Output for 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, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12

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153.43 ms | 407 KiB | 5 Q