Online PHP editor | refs for oJ45U

<?php $aPools = []; $aPools[1] = [ 'Redeployment' => 100, 'TalentPool' => 500, ]; $aPools[2] = []; function array_flatten($aArray) { $aOut = array(); foreach ($aArray as $mSubItem) { if(is_array($mSubItem)) { $aOut = array_merge($aOut, array_flatten($mSubItem)); } else { $aOut[] = $mSubItem; } } return $aOut; } print_r(array_flatten($aPools));