排序前
Array( [0] => Array ( [name] => 龍 [age] => 2017-02-28 ) [1] => Array ( [name] => 龍2 [age] => 2017-03-14 ) [2] => Array ( [name] => 小3 [age] => 2017-05-09 ) [3] => Array ( [name] => 龍4 [age] => 2017-02-03 ) [4] => Array ( [name] => 龍5 [age] => 2017-03-23 ) [5] => Array ( [name] => 龍6 [age] => 21 ))array_multisort(array_column($arr,'age'),SORT_DESC,$arr);print_r($arr);
排序后
Array( [0] => Array ( [name] => 龍6 [age] => 21 ) [1] => Array ( [name] => 小3 [age] => 2017-05-09 ) [2] => Array ( [name] => 龍5 [age] => 2017-03-23 ) [3] => Array ( [name] => 龍2 [age] => 2017-03-14 ) [4] => Array ( [name] => 龍 [age] => 2017-02-28 ) [5] => Array ( [name] => 龍4 [age] => 2017-02-03 ))
其中 array_column(數(shù)組,數(shù)組中的某個(gè)鍵值) 從多維數(shù)組中取出某個(gè)鍵值的一列 返回一個(gè)一維數(shù)組；
array_multisort(數(shù)組(一維數(shù)組),排序方式(SOTR_ASC,SOTR_DESC),其他數(shù)組(可以是二維的))
總結(jié)
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