3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = function(){}; $y = function($x){echo 'foo';}; $z = function($x){echo 'bar';}; var_dump(array_search($x, array($x,$y,$z), false)); var_dump(array_search($y, array($x,$y,$z), false)); var_dump(array_search($z, array($x,$y,$z), false)); var_dump(array_search(function(){}, array($x,$y,$z), false));

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