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<?php $arr = [ 0 => "556878", 1 => "12345", 2 => "12345", 3 => "234567", 4 => "45673", 5 => "45673", ]; function getNtimes($arr, $n) { $temp = array_count_values($arr); return array_keys((array_filter($temp, function ($value) use (&$n) { return $value == 2; }))); } $arr = getNtimes($arr, 2); print_r($arr);die;
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Array ( [0] => 12345 [1] => 45673 )
preferences:
166.72 ms | 403 KiB | 184 Q