3v4l.org

run code in 500+ PHP versions simultaneously
<?php function &foo() { static $x = []; print_r($x); return $x; } $a = foo()[] = 3; var_dump($a); foo();
Output for 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
Array ( ) int(3) Array ( [0] => 3 )

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