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run code in 300+ PHP versions simultaneously
<?php $haystack = [ "a" => 2, "b" => 4, "c" => 2, "d" => 5, "e" => 6, "f" => 2 ]; $needle = 2; var_export( array_filter( $haystack, fn($v) => $v === $needle ) );
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'a' => 2, 'c' => 2, 'f' => 2, )

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