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<?php $keys = array(1,2,3,6,9); //note that 9 does not exist as key in the $values array $values = array('000', '001', '002', '003', '004', '005', '006', '007'); $new = array_map( $keys, function( $key) use( $values) { return $values[ $key ]; }); var_dump( $new);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array callback must have exactly two members in /in/Go8HW:4 Stack trace: #0 /in/Go8HW(4): array_map(Array, Object(Closure)) #1 {main} thrown in /in/Go8HW on line 4
Process exited with code 255.

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