php 多维数组排序

WBOY
Release: 2016-06-20 12:54:58
Original
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//定义一个学生数组

$students  = array (

     256=> array ( 'name' => 'jon' , 'grade' =>98.5),

     2=> array ( 'name' => 'vance' , 'grade' =>85.1),

     9=> array ( 'name' => 'stephen' , 'grade' =>94.0),

     364=> array ( 'name' => 'steve' , 'grade' =>85.1),

     68=> array ( 'name' => 'rob' , 'grade' =>74.6),

);

//按照名称进行排序

function  name_sort( $x , $y )

{

     return  strcasecmp ( $x [ 'name' ], $y [ 'name' ]);

}

//按照成绩进行排序

function  grade_sort( $x , $y )

{

     return  ( $x [ 'grade' ] > $y [ 'grade' ]);

}

uasort( $students , name_sort);

 

uasort( $students , grade_sort);



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