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<?php $spinArray = [ [1,2,3], [2,3,4], [1,2,3] ]; function checkIfArraysEqual($arrayOfArrays) { $resultIndexes = []; $tempArray = []; foreach($arrayOfArrays as $key => $array) { $tmpKey = array_search($array, $tempArray); if($tmpKey !== false) { $resultIndexes[] = $key; $resultIndexes[] = $tmpKey; } else { $tempArray[$key] = $array; } } return array_unique($resultIndexes); } var_dump(checkIfArraysEqual($spinArray));
Output for 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(2) { [0]=> int(2) [1]=> int(0) }
preferences:
99.61 ms | 1479 KiB | 4 Q