php array函数们
PHP Array 函数
PHP:指示支持该函数的最早的 PHP 版本。
array() | 创建数组。 | 3 |
array_change_key_case() | 返回其键均为大写或小写的数组。 | 4 |
array_chunk() | 把一个数组分割为新的数组块。 | 4 |
array_combine() | 通过合并两个数组来创建一个新数组。 | 5 |
array_count_values() | 用于统计数组中所有值出现的次数。 | 4 |
array_diff() | 返回两个数组的差集数组。 | 4 |
array_diff_assoc() | 比较键名和键值,并返回两个数组的差集数组。 | 4 |
array_diff_key() | 比较键名,并返回两个数组的差集数组。 | 5 |
array_diff_uassoc() | 通过用户提供的回调函数做索引检查来计算数组的差集。 | 5 |
array_diff_ukey() | 用回调函数对键名比较计算数组的差集。 | 5 |
array_fill() | 用给定的值填充数组。 | 4 |
array_filter() | 用回调函数过滤数组中的元素。 | 4 |
array_flip() | 交换数组中的键和值。 | 4 |
array_intersect() | 计算数组的交集。 | 4 |
array_intersect_assoc() | 比较键名和键值,并返回两个数组的交集数组。 | 4 |
array_intersect_key() | 使用键名比较计算数组的交集。 | 5 |
array_intersect_uassoc() | 带索引检查计算数组的交集,用回调函数比较索引。 | 5 |
array_intersect_ukey() | 用回调函数比较键名来计算数组的交集。 | 5 |
array_key_exists() | 检查给定的键名或索引是否存在于数组中。 | 4 |
array_keys() | 返回数组中所有的键名。 | 4 |
array_map() | 将回调函数作用到给定数组的单元上。 | 4 |
array_merge() | 把一个或多个数组合并为一个数组。 | 4 |
array_merge_recursive() | 递归地合并一个或多个数组。 | 4 |
array_multisort() | 对多个数组或多维数组进行排序。 | 4 |
array_pad() | 用值将数组填补到指定长度。 | 4 |
array_pop() | 将数组最后一个单元弹出(出栈)。 | 4 |
array_product() | 计算数组中所有值的乘积。 | 5 |
array_push() | 将一个或多个单元(元素)压入数组的末尾(入栈)。 | 4 |
array_rand() | 从数组中随机选出一个或多个元素,并返回。 | 4 |
array_reduce() | 用回调函数迭代地将数组简化为单一的值。 | 4 |
array_reverse() | 将原数组中的元素顺序翻转,创建新的数组并返回。 | 4 |
array_search() | 在数组中搜索给定的值,如果成功则返回相应的键名。 | 4 |
array_shift() | 删除数组中的第一个元素,并返回被删除元素的值。 | 4 |
array_slice() | 在数组中根据条件取出一段值,并返回。 | 4 |
array_splice() | 把数组中的一部分去掉并用其它值取代。 | 4 |
array_sum() | 计算数组中所有值的和。 | 4 |
array_udiff() | 用回调函数比较数据来计算数组的差集。 | 5 |
array_udiff_assoc() | 带索引检查计算数组的差集,用回调函数比较数据。 | 5 |
array_udiff_uassoc() | 带索引检查计算数组的差集,用回调函数比较数据和索引。 | 5 |
array_uintersect() | 计算数组的交集,用回调函数比较数据。 | 5 |
array_uintersect_assoc() | 带索引检查计算数组的交集,用回调函数比较数据。 | 5 |
array_uintersect_uassoc() | 带索引检查计算数组的交集,用回调函数比较数据和索引。 | 5 |
array_unique() | 删除数组中重复的值。 | 4 |
array_unshift() | 在数组开头插入一个或多个元素。 | 4 |
array_values() | 返回数组中所有的值。 | 4 |
array_walk() | 对数组中的每个成员应用用户函数。 | 3 |
array_walk_recursive() | 对数组中的每个成员递归地应用用户函数。 | 5 |
arsort() | 对数组进行逆向排序并保持索引关系。 | 3 |
asort() | 对数组进行排序并保持索引关系。 | 3 |
compact() | 建立一个数组,包括变量名和它们的值。 | 4 |
count() | 计算数组中的元素数目或对象中的属性个数。 | 3 |
current() | 返回数组中的当前元素。 | 3 |
each() | 返回数组中当前的键/值对并将数组指针向前移动一步。 | 3 |
end() | 将数组的内部指针指向最后一个元素。 | 3 |
extract() | 从数组中将变量导入到当前的符号表。 | 3 |
in_array() | 检查数组中是否存在指定的值。 | 4 |
key() | 从关联数组中取得键名。 | 3 |
krsort() | 对数组按照键名逆向排序。 | 3 |
ksort() | 对数组按照键名排序。 | 3 |
list() | 把数组中的值赋给一些变量。 | 3 |
natcasesort() | 用“自然排序”算法对数组进行不区分大小写字母的排序。 | 4 |
natsort() | 用“自然排序”算法对数组排序。 | 4 |
next() | 将数组中的内部指针向前移动一位。 | 3 |
pos() | current() 的别名。 | 3 |
prev() | 将数组的内部指针倒回一位。 | 3 |
range() | 建立一个包含指定范围的元素的数组。 | 3 |
reset() | 将数组的内部指针指向第一个元素。 | 3 |
rsort() | 对数组逆向排序。 | 3 |
shuffle() | 把数组中的元素按随机顺序重新排列。 | 3 |
sizeof() | count() 的别名。 | 3 |
sort() | 对数组排序。 | 3 |
uasort() | 使用用户自定义的比较函数对数组中的值进行排序并保持索引关联。 | 3 |
uksort() | 使用用户自定义的比较函数对数组中的键名进行排序。 | 3 |
usort() | 使用用户自定义的比较函数对数组中的值进行排序。 | 3 |

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