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<?php $array = ['val1', 'val2', 200, 179, 230, 234, 242]; $order = [230, 234, 242, 179, 100]; $keyedOrder = array_flip($order); // for efficiency usort($array, function($a, $b) use ($keyedOrder) { return [$keyedOrder[$a] ?? -1, $a] <=> [$keyedOrder[$b] ?? -1, $b]; }); var_export($array);

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