數組函數： * [array\_change\_key\_case](https://www.php.net/manual/en/function.array-change-key-case.php)—更改數組中所有鍵的大小寫 * [array\_chunk](https://www.php.net/manual/en/function.array-chunk.php)—將數組拆分為多個塊 * [array\_column](https://www.php.net/manual/en/function.array-column.php)—從輸入數組中的單個列返回值 * [array\_combine](https://www.php.net/manual/en/function.array-combine.php)—通過使用一個數組作為鍵并使用另一個數組作為其值來創建數組 * [array\_count\_values](https://www.php.net/manual/en/function.array-count-values.php)—計算數組的所有值 * [array\_diff\_assoc](https://www.php.net/manual/en/function.array-diff-assoc.php)—使用附加索引檢查來計算數組的差 * [array\_diff\_key](https://www.php.net/manual/en/function.array-diff-key.php)—使用比較鍵計算數組的差 * [array\_diff\_uassoc](https://www.php.net/manual/en/function.array-diff-uassoc.php)—通過由用戶提供的回調函數執行的附加索引檢查來計算數組的差值 * [array\_diff\_ukey](https://www.php.net/manual/en/function.array-diff-ukey.php)—使用鍵上的回調函數計算數組的差異以進行比較 * [array\_diff](https://www.php.net/manual/en/function.array-diff.php)—計算數組的差 * [array\_fill\_keys](https://www.php.net/manual/en/function.array-fill-keys.php)—用值填充數組，指定鍵 * [array\_fill](https://www.php.net/manual/en/function.array-fill.php)—用值填充數組 * [array\_filter](https://www.php.net/manual/en/function.array-filter.php)—使用回調函數過濾數組的元素 * [array\_flip](https://www.php.net/manual/en/function.array-flip.php)—交換數組中所有鍵及其關聯的值 * [array\_intersect\_assoc](https://www.php.net/manual/en/function.array-intersect-assoc.php)—計算帶有附加索引檢查的數組的交集 * [array\_intersect\_key](https://www.php.net/manual/en/function.array-intersect-key.php)—使用比較鍵計算數組的交集 * [array\_intersect\_uassoc](https://www.php.net/manual/en/function.array-intersect-uassoc.php)—計算具有附加索引檢查的數組的交集，通過回調函數比較索引 * [array\_intersect\_ukey](https://www.php.net/manual/en/function.array-intersect-ukey.php)—在鍵上使用回調函數計算數組的交集 * [array\_intersect](https://www.php.net/manual/en/function.array-intersect.php)—計算數組的交集 * [array\_key\_exists](https://www.php.net/manual/en/function.array-key-exists.php)—檢查數組中是否存在給定的鍵或索引 * [array\_key\_first](https://www.php.net/manual/en/function.array-key-first.php)—獲取數組的第一個鍵 * [array\_key\_last](https://www.php.net/manual/en/function.array-key-last.php)—獲取數組的最后一個鍵 * [array\_keys](https://www.php.net/manual/en/function.array-keys.php)—返回數組的所有鍵或鍵的子集 * [array\_map](https://www.php.net/manual/en/function.array-map.php)—將回調應用于給定數組的元素 * [array\_merge\_recursive](https://www.php.net/manual/en/function.array-merge-recursive.php)—遞歸合并一個或多個數組 * [array\_merge](https://www.php.net/manual/en/function.array-merge.php)—合并一個或多個數組 * [array\_multisort](https://www.php.net/manual/en/function.array-multisort.php)—對多維或多維數組進行排序 * [array\_pad](https://www.php.net/manual/en/function.array-pad.php)—使用值將數組填充到指定的長度 * [array\_pop](https://www.php.net/manual/en/function.array-pop.php)—從數組末尾彈出元素 * [array\_product](https://www.php.net/manual/en/function.array-product.php)—計算數組中值的乘積 * [array\_push](https://www.php.net/manual/en/function.array-push.php)—將一個或多個元素推到數組的末尾 * [array\_rand](https://www.php.net/manual/en/function.array-rand.php)—從數組中選擇一個或多個隨機鍵 * [array\_reduce](https://www.php.net/manual/en/function.array-reduce.php)—使用回調函數將數組迭代地減少為單個值 * [array\_replace\_recursive](https://www.php.net/manual/en/function.array-replace-recursive.php)—將傳遞的數組中的元素遞歸替換為第一個數組 * [array\_replace](https://www.php.net/manual/en/function.array-replace.php)—將傳遞的數組中的元素替換為第一個數組 * [array\_reverse](https://www.php.net/manual/en/function.array-reverse.php)—返回具有相反順序元素的數組 * [array\_search](https://www.php.net/manual/en/function.array-search.php)—在數組中搜索給定值，如果成功，則返回第一個對應的鍵 * [array\_shift](https://www.php.net/manual/en/function.array-shift.php)—將元素移出數組的開頭 * [array\_slice](https://www.php.net/manual/en/function.array-slice.php)—提取數組的一部分 * [array\_splice](https://www.php.net/manual/en/function.array-splice.php)—刪除數組的一部分并將其替換為其他內容 * [array\_sum](https://www.php.net/manual/en/function.array-sum.php)—計算數組中值的總和 * [array\_udiff\_assoc](https://www.php.net/manual/en/function.array-udiff-assoc.php)—通過附加索引檢查計算數組的差，通過回調函數比較數據 * [array\_udiff\_uassoc](https://www.php.net/manual/en/function.array-udiff-uassoc.php)—通過附加索引檢查來計算數組的差，通過回調函數比較數據和索引 * [array\_udiff](https://www.php.net/manual/en/function.array-udiff.php)—通過使用回調函數進行數據比較來計算數組的差 * [array\_uintersect\_assoc](https://www.php.net/manual/en/function.array-uintersect-assoc.php)—計算具有附加索引檢查的數組的交集，通過回調函數比較數據 * [array\_uintersect\_uassoc](https://www.php.net/manual/en/function.array-uintersect-uassoc.php)—使用附加的索引檢查來計算數組的交集，并通過單獨的回調函數比較數據和索引 * [array\_uintersect](https://www.php.net/manual/en/function.array-uintersect.php)—計算數組的交集，通過回調函數比較數據 * [array\_unique](https://www.php.net/manual/en/function.array-unique.php)—從數組中刪除重復的值 * [array\_unshift](https://www.php.net/manual/en/function.array-unshift.php)—在數組的開頭添加一個或多個元素 * [array\_values](https://www.php.net/manual/en/function.array-values.php)—返回數組的所有值 * [array\_walk\_recursive](https://www.php.net/manual/en/function.array-walk-recursive.php)—將用戶函數遞歸應用于數組的每個成員 * [array\_walk](https://www.php.net/manual/en/function.array-walk.php)—將用戶提供的函數應用于數組的每個成員 * [array](https://www.php.net/manual/en/function.array.php)—創建一個數組 * [arsort](https://www.php.net/manual/en/function.arsort.php)—以相反的順序對數組進行排序并維護索引關聯 * [asort](https://www.php.net/manual/en/function.asort.php)—對數組進行排序并維護索引關聯 * [compact](https://www.php.net/manual/en/function.compact.php)—創建包含變量及其值的數組 * [count](https://www.php.net/manual/en/function.count.php)—計算數組或對象中的所有元素 * [current](https://www.php.net/manual/en/function.current.php)—返回數組中的當前元素 * [each](https://www.php.net/manual/en/function.each.php)—從數組返回當前鍵和值對，并前進數組光標 * [end](https://www.php.net/manual/en/function.end.php)—將數組的內部指針設置為其最后一個元素 * [extract](https://www.php.net/manual/en/function.extract.php)—從數組將變量導入當前符號表 * [in\_array](https://www.php.net/manual/en/function.in-array.php)—檢查數組中是否存在值 * [key\_exists](https://www.php.net/manual/en/function.key-exists.php)— array\_key\_exists的別名 * [key](https://www.php.net/manual/en/function.key.php)—從數組中獲取密鑰 * [krsort](https://www.php.net/manual/en/function.krsort.php)—按鍵對數組進行反向排序 * [ksort](https://www.php.net/manual/en/function.ksort.php)—按鍵對數組排序 * [list](https://www.php.net/manual/en/function.list.php)—將變量分配為數組 * [natcasesort](https://www.php.net/manual/en/function.natcasesort.php)—使用不區分大小寫的“自然順序”算法對數組進行排序 * [natsort](https://www.php.net/manual/en/function.natsort.php)—使用“自然順序”算法對數組進行排序 * [next](https://www.php.net/manual/en/function.next.php)—推進數組的內部指針 * [pos-](https://www.php.net/manual/en/function.pos.php)當前別名 * [prev](https://www.php.net/manual/en/function.prev.php)—倒帶內部數組指針 * [range](https://www.php.net/manual/en/function.range.php)—創建一個包含一系列元素的數組 * [reset](https://www.php.net/manual/en/function.reset.php)—將數組的內部指針設置為其第一個元素 * [rsort](https://www.php.net/manual/en/function.rsort.php)—以相反的順序對數組排序 * [shuffle](https://www.php.net/manual/en/function.shuffle.php)—隨機打亂數組 * [sizeof](https://www.php.net/manual/en/function.sizeof.php)—計數別名 * [sort](https://www.php.net/manual/en/function.sort.php)—對數組[進行](https://www.php.net/manual/en/function.sort.php)排序 * [uasort](https://www.php.net/manual/en/function.uasort.php)—使用用戶定義的比較功能對數組進行排序并維護索引關聯 * [uksort](https://www.php.net/manual/en/function.uksort.php)—使用用戶定義的比較功能按鍵對數組進行排序 * [usort](https://www.php.net/manual/en/function.usort.php)—使用用戶定義的比較函數按值對數組進行排序 數組排序 | 函數名 | 排序依據 | 維持key關聯 | 排序順序 | 相關函數 | | --- | --- | --- | --- | --- | | [array\_multisort()](https://www.php.net/manual/en/function.array-multisort.php) | value | associative yes, numeric no | first array or sort options | [array\_walk()](https://www.php.net/manual/en/function.array-walk.php) | | [asort()](https://www.php.net/manual/en/function.asort.php) | value | yes | low to high | [arsort()](https://www.php.net/manual/en/function.arsort.php) | | [arsort()](https://www.php.net/manual/en/function.arsort.php) | value | yes | high to low | [asort()](https://www.php.net/manual/en/function.asort.php) | | [krsort()](https://www.php.net/manual/en/function.krsort.php) | key | yes | high to low | [ksort()](https://www.php.net/manual/en/function.ksort.php) | | [ksort()](https://www.php.net/manual/en/function.ksort.php) | key | yes | low to high | [asort()](https://www.php.net/manual/en/function.asort.php) | | [natcasesort()](https://www.php.net/manual/en/function.natcasesort.php) | value | yes | natural, case insensitive | [natsort()](https://www.php.net/manual/en/function.natsort.php) | | [natsort()](https://www.php.net/manual/en/function.natsort.php) | value | yes | natural | [natcasesort()](https://www.php.net/manual/en/function.natcasesort.php) | | [rsort()](https://www.php.net/manual/en/function.rsort.php) | value | no | high to low | [sort()](https://www.php.net/manual/en/function.sort.php) | | [shuffle()](https://www.php.net/manual/en/function.shuffle.php) | value | no | random | [array\_rand()](https://www.php.net/manual/en/function.array-rand.php) | | [sort()](https://www.php.net/manual/en/function.sort.php) | value | no | low to high | [rsort()](https://www.php.net/manual/en/function.rsort.php) | | [uasort()](https://www.php.net/manual/en/function.uasort.php) | value | yes | user defined | [uksort()](https://www.php.net/manual/en/function.uksort.php) | | [uksort()](https://www.php.net/manual/en/function.uksort.php) | key | yes | user defined | [uasort()](https://www.php.net/manual/en/function.uasort.php) | | [usort()](https://www.php.net/manual/en/function.usort.php) | value | no | user defined | [uasort()](https://www.php.net/manual/en/function.uasort.php) |