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<?php $array = [1, 2, 3, 4, 5]; $array = array_map(fn($item) => -$item, $array); var_dump($array);
Output for git.master_jit, git.master, rfc.property-hooks
array(5) { [0]=> int(-1) [1]=> int(-2) [2]=> int(-3) [3]=> int(-4) [4]=> int(-5) }

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