<?php $arr = array('order_source' => array('google','facebook'), 'order_medium' => 'google-text'); function bqs($array, $qs='') { foreach($array as $par => $val) { if(is_array($val)) { bqs($val, $qs); } else { $qs .= $par.'='.$val.'&'; } } return $qs; } echo $qss = bqs($arr);
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