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php二维数组中按某个元素的值排序(升序) 求大神支招
- WBOYOriginal
- 2016-06-06 20:37:301073browse
按照birthday_interval升序排序
<code>Array
(
[0] => Array
(
[birthday_range] => 三月外
[id] => 8
[age] => 24
[birthday] => 12月04日
[username] => haha
[birthday_interval] => 273
)
[1] => Array
(
[birthday_range] => 三月外
[id] => 9
[age] => 24
[birthday] => 12月04日
[username] => haha
[birthday_interval] => 283
)
[2] => Array
(
[birthday_range] => 三月内
[id] => 10
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 37
)
[3] => Array
(
[birthday_range] => 三月内
[id] => 11
[age] => 16
[birthday] => 04月12日
[username] => xcvxcvxcv
[birthday_interval] => 37
)
[4] => Array
(
[birthday_range] => 三月内
[id] => 12
[age] => 16
[birthday] => 04月12日
[username] => asasdfgh
[birthday_interval] => 37
)
[5] => Array
(
[birthday_range] => 三月内
[id] => 13
[age] => 16
[birthday] => 04月12日
[username] => 1123
[birthday_interval] => 32
)
[6] => Array
(
[birthday_range] => 三月内
[id] => 14
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 31
)
[7] => Array
(
[birthday_range] => 三月内
[id] => 15
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 37
)
[8] => Array
(
[birthday_range] => 三月内
[id] => 16
[age] => 21
[birthday] => 04月12日
[username] => 刘宗源
[birthday_interval] => 32
)
[9] => Array
(
[birthday_range] => 三月外
[id] => 17
[age] => 17
[birthday] => 01月19日
[username] => 不知道
[birthday_interval] => 319
)
)
</code>
回复内容：
按照birthday_interval升序排序
<code>Array
(
[0] => Array
(
[birthday_range] => 三月外
[id] => 8
[age] => 24
[birthday] => 12月04日
[username] => haha
[birthday_interval] => 273
)
[1] => Array
(
[birthday_range] => 三月外
[id] => 9
[age] => 24
[birthday] => 12月04日
[username] => haha
[birthday_interval] => 283
)
[2] => Array
(
[birthday_range] => 三月内
[id] => 10
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 37
)
[3] => Array
(
[birthday_range] => 三月内
[id] => 11
[age] => 16
[birthday] => 04月12日
[username] => xcvxcvxcv
[birthday_interval] => 37
)
[4] => Array
(
[birthday_range] => 三月内
[id] => 12
[age] => 16
[birthday] => 04月12日
[username] => asasdfgh
[birthday_interval] => 37
)
[5] => Array
(
[birthday_range] => 三月内
[id] => 13
[age] => 16
[birthday] => 04月12日
[username] => 1123
[birthday_interval] => 32
)
[6] => Array
(
[birthday_range] => 三月内
[id] => 14
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 31
)
[7] => Array
(
[birthday_range] => 三月内
[id] => 15
[age] => 16
[birthday] => 04月12日
[username] => 123
[birthday_interval] => 37
)
[8] => Array
(
[birthday_range] => 三月内
[id] => 16
[age] => 21
[birthday] => 04月12日
[username] => 刘宗源
[birthday_interval] => 32
)
[9] => Array
(
[birthday_range] => 三月外
[id] => 17
[age] => 17
[birthday] => 01月19日
[username] => 不知道
[birthday_interval] => 319
)
)
</code>
<code><?php usort( $users, function( $a, $b ) {
return $a['birthday_interval'] - $b['birthday_interval'];
});
</code></code>
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