具有通用性二維數組排序演算法函數

轉載地址： http://blog.qita.in/?post=468 //二維數組排序， $arr是資料，$keys是排序的健值，$order是定序，1是升序，0是降序 function array_sort($arr, $keys, $order=0) { if (!is_array($arr)) { return false; } $keysvalue = array(); foreach($arr as $key => $val) { $keysvalue[$key] = $val[$keys]; } if($order == 0){ asort($keysvalue); }else { arsort($keysvalue); } reset($keysvalue); foreach($keysvalue as $key => $vals) { $keysort[$key] = $key; } $new_array = array(); foreach($keysort as $key => $val) { $new_array[$key] = $arr[$val]; } return $new_array; } //eg $arr = array('0'=>array('a'=>2,'b'=>4,'c'=>3), '1'=>array('a'=>45,'b'=>3,'c'=>3), '2'=>array('a'=>2,'b'=>7,'c'=>3), ); $new_array = array_sort($arr,'a',0); print_r($new_array); 複製代碼

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