實例如下所示：
$arr = array( 0=>array('key1'=>'value1' , 'key2'=>'value2'), 1=>array('key1'=>'value1' , 'key2'=>'value3'), 2=>array('key1'=>'value2' , 'key2'=>'value4'), 999=>array('key1'=>'value2' , 'key2'=>'value5') ); $result = array(); <span style="color:#FF0000;">foreach ($arr as $data) { isset($result[$data['key1']]) || $result[$data['key1']] = array(); $result[$data['key1']][] = $data['key2']; }</span> ksort($cityAr, SORT_NATURAL);//這個是鍵值按字母先后順序排列 print_r($result); //輸出如下 Array ( [value1] => Array ( [0] => value2 [1] => value3 ) [value2] => Array ( [0] => value4 [1] => value5 ) ) 以上這篇PHP讓數組中有相同值的組成新的數組實例就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持VeVb武林網。
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