3v4l.org

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<?php $array = ["a", "b", "c", "d", "f"]; var_export( array_map(fn($v) => $v . '_M', $array) );
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array ( 0 => 'a_M', 1 => 'b_M', 2 => 'c_M', 3 => 'd_M', 4 => 'f_M', )

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61.58 ms | 406 KiB | 5 Q