PHP多維陣列排序 array_multisort()____PHP

來源:互聯網
上載者:User
array_multisort ( array_column ( $tpldata , 'time_stamp' ), SORT_DESC , $tpldata ); SORT_DESC 降序;SORT_ASC 升序   time_stamp 排序欄位
多維陣列排序 array_multisort() 用PHP內建array_multisort函數排序  <?php     $data = array();     $data[] = array('volume' => 67, 'edition' => 2);     $data[] = array('volume' => 86, 'edition' => 1);     $data[] = array('volume' => 85, 'edition' => 6);     $data[] = array('volume' => 98, 'edition' => 2);     $data[] = array('volume' => 86, 'edition' => 6);     $data[] = array('volume' => 67, 'edition' => 7);     // 取得列的列表     foreach ($data as $key => $row)     {         $volume[$key]  = $row['volume'];         $edition[$key] = $row['edition'];     }     array_multisort($volume, SORT_DESC, $edition, SORT_ASC, $data);     print_r($data); ?> 輸出結果: 複製代碼  代碼如下: Array (     [0] => Array         (             [volume] => 98             [edition] => 2         )     [1] => Array         (             [volume] => 86             [edition] => 1         )     [2] => Array         (             [volume] => 86             [edition] => 6         )     [3] => Array         (             [volume] => 85             [edition] => 6         )     [4] => Array         (             [volume] => 67             [edition] => 2         )     [5] => Array         (             [volume] => 67             [edition] => 7         ) ) 關於array_multisort官方文檔也有比較詳細的說明:http://www.php.net/manual/zh/function.array-multisort.php 二、自訂函數排序1 複製代碼  代碼如下:
<?php     $data = array();     $data[] = array('volume' => 67, 'edition' => 2);     $data[] = array('volume' => 86, 'edition' => 1);     $data[] = array('volume' => 85, 'edition' => 6);     $data[] = array('volume' => 98, 'edition' => 2);     $data[] = array('volume' => 86, 'edition' => 6);     $data[] = array('volume' => 67, 'edition' => 7);     // 取得列的列表     foreach ($data as $key => $row)     {         $volume[$key]  = $row['volume'];         $edition[$key] = $row['edition'];     }     $ret = arraySort($data, 'volume', 'desc');     print_r($ret);     /**      * @desc arraySort php二維數組排序 按照指定的key 對數組進行排序      * @param array $arr 將要排序的數組      * @param string $keys 指定排序的key      * @param string $type 排序類型 asc | desc      * @return array      */     function arraySort($arr, $keys, $type = 'asc') {         $keysvalue = $new_array = array();         foreach ($arr as $k => $v){             $keysvalue[$k] = $v[$keys];         }         $type == 'asc' ? asort($keysvalue) : arsort($keysvalue);         reset($keysvalue);         foreach ($keysvalue as $k => $v) {            $new_array[$k] = $arr[$k];         }         return $new_array;     } ?>
輸出結果: 複製代碼  代碼如下: Array (     [3] => Array         (             [volume] => 98             [edition] => 2         )     [4] => Array         (             [volume] => 86             [edition] => 6         )     [1] => Array         (             [volume] => 86             [edition] => 1         )     [2] => Array         (             [volume] => 85             [edition] => 6         )     [5] => Array         (             [volume] => 67             [edition] => 7         )     [0] => Array         (             [volume] => 67             [edition] => 2         ) ) 這個自訂函數與系統函數的一個區別就是:自訂函數只支援針對某一個key的排序,如果要支援多個key的排序需要執行多次; 而系統函數array_multisort可以一次性對多個key且可以指定多個定序,系統函數還是相當強大的,推薦使用系統函數,畢
相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.