<?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));
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Value for `_results` contains invalid data `array`