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<?php $r = range(1,10); array_map($r, function(&$value, $key) { $double = $value*2; if ($double >= 12) { $value = $double; } else { unset($r[$key]); } }); var_dump($r);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array callback must have exactly two members in /in/d200A:5 Stack trace: #0 /in/d200A(5): array_map(Array, Object(Closure)) #1 {main} thrown in /in/d200A on line 5
Process exited with code 255.

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