本文实例讲述了PHP按指定键值对二维数组进行排序的方法。分享给大家供大家参考,具体如下:
问题:
有数组:
复制代码 代码如下:
array(0=>array('id'=>1,'price'=>50),1=>array('id'=>2,'price'=>60));
要求根据数组的price这个字段进行排序。
实现代码如下:
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<?php $array [] = array ( 'id' =>1, 'price' =>50); $array [] = array ( 'id' =>2, 'price' =>70); $array [] = array ( 'id' =>3, 'price' =>30); $array [] = array ( 'id' =>4, 'price' =>20); foreach ( $array as $key => $value ){ $id [ $key ] = $value [ 'id' ]; $price [ $key ] = $value [ 'price' ]; } array_multisort ( $price ,SORT_NUMERIC,SORT_DESC, $id ,SORT_STRING,SORT_ASC, $array ); echo '<pre>' ; print_r( $array ); echo '</pre>' ; ?> |
运行结果:
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Array ( [0] => Array ( [id] => 2 [price] => 70 ) [1] => Array ( [id] => 1 [price] => 50 ) [2] => Array ( [id] => 3 [price] => 30 ) [3] => Array ( [id] => 4 [price] => 20 ) ) |
希望本文所述对大家PHP程序设计有所帮助。