PHP多维数组排序
//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'] > $y['grade']);
}
//应用
uasort($students, name_sort);
uasort($students, grade_sort);
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