PHP Array Functions
PHP Array Introduction
The array functions allow you to access and manipulate arrays.
Simple and multi-dimensional arrays are supported.
Installation
The array functions are part of the PHP core. There is no installation needed to use these functions.
PHP Array Functions
| Function | 描述 |
|---|---|
| 大批（） | Creates an array |
| 数组更改键值（） | Changes all keys in an array to lowercase or uppercase |
| array_chunk（） | Splits an array into chunks of arrays |
| 数组列（） | Returns the values from a single column in the input array |
| 数组合并() | Creates an array by using the elements from one "keys" array and one "values" array |
| 数组计数值() | Counts all the values of an array |
| 数组差异（） | Compare arrays, and returns the differences (compare values only) |
| 数组差异（） | Compare arrays, and returns the differences (compare keys and values) |
| 数组差异键（） | Compare arrays, and returns the differences (compare keys only) |
| 数组_diff_uassoc() | Compare arrays, and returns the differences (compare keys and values, using a user-defined key comparison function) |
| 数组_diff_ukey() | Compare arrays, and returns the differences (compare keys only, using a user-defined key comparison function) |
| 数组填充（） | Fills an array with values |
| 数组填充键（） | Fills an array with values, specifying keys |
| 数组过滤器（） | Filters the values of an array using a callback function |
| 数组翻转() | Flips/Exchanges all keys with their associated values in an array |
| 数组相交() | Compare arrays, and returns the matches (compare values only) |
| 数组相交（） | Compare arrays and returns the matches (compare keys and values) |
| 数组相交键（） | Compare arrays, and returns the matches (compare keys only) |
| 数组相交（） | Compare arrays, and returns the matches (compare keys and values, using a user-defined key comparison function) |
| 数组相交_ukey() | Compare arrays, and returns the matches (compare keys only, using a user-defined key comparison function) |
| 数组键存在（） | Checks if the specified key exists in the array |
| 数组键（） | Returns all the keys of an array |
| 数组映射（） | Sends each value of an array to a user-made function, which returns new values |
| 数组合并（） | Merges one or more arrays into one array |
| array_merge_recursive（） | Merges one or more arrays into one array recursively |
| array_multisort() | Sorts multiple or multi-dimensional arrays |
| 数组填充（） | Inserts a specified number of items, with a specified value, to an array |
| 数组弹出() | Deletes the last element of an array |
| 数组乘积() | Calculates the product of the values in an array |
| 数组推送() | Inserts one or more elements to the end of an array |
| 数组随机数（） | Returns one or more random keys from an array |
| 数组_reduce() | Returns an array as a string, using a user-defined function |
| 数组替换（） | Replaces the values of the first array with the values from following arrays |
| array_replace_recursive（） | Replaces the values of the first array with the values from following arrays recursively |
| array_reverse() | Returns an array in the reverse order |
| 数组搜索（） | Searches an array for a given value and returns the key |
| 数组移位() | Removes the first element from an array, and returns the value of the removed element |
| 数组切片() | Returns selected parts of an array |
| 数组拼接() | Removes and replaces specified elements of an array |
| 数组总和() | Returns the sum of the values in an array |
| 数组_udiff() | Compare arrays, and returns the differences (compare values only, using a user-defined key comparison function) |
| 数组_udiff_assoc() | Compare arrays, and returns the differences (compare keys and values, using a built-in function to compare the keys and a user-defined function to compare the values) |
| 数组_udiff_uassoc() | Compare arrays, and returns the differences (compare keys and values, using two user-defined key comparison functions) |
| 数组_uintersect() | Compare arrays, and returns the matches (compare values only, using a user-defined key comparison function) |
| 数组uintersect_assoc() | Compare arrays, and returns the matches (compare keys and values, using a built-in function to compare the keys and a user-defined function to compare the values) |
| 数组_uintersect_uassoc() | Compare arrays, and returns the matches (compare keys and values, using two user-defined key comparison functions) |
| 数组唯一（） | Removes duplicate values from an array |
| 数组取消移动() | Adds one or more elements to the beginning of an array |
| 数组值（） | Returns all the values of an array |
| 数组遍历() | Applies a user function to every member of an array |
| array_walk_recursive（） | Applies a user function recursively to every member of an array |
| arsort() | Sorts an associative array in descending order, according to the value |
| 排序() | Sorts an associative array in ascending order, according to the value |
| 袖珍的（） | Create array containing variables and their values |
| 数数（） | Returns the number of elements in an array |
| 当前的（） | Returns the current element in an array |
| 每个（） | Deprecated from PHP 7.2. Returns the current key and value pair from an array |
| 结尾（） | Sets the internal pointer of an array to its last element |
| 提炼（） | Imports variables into the current symbol table from an array |
| 数组中 | Checks if a specified value exists in an array |
| 钥匙（） | Fetches a key from an array |
| krsort() | Sorts an associative array in descending order, according to the key |
| 排序（） | Sorts an associative array in ascending order, according to the key |
| 列表（） | Assigns variables as if they were an array |
| natcasesort() | Sorts an array using a case insensitive "natural order" algorithm |
| natsort() | Sorts an array using a "natural order" algorithm |
| 下一个（） | Advance the internal array pointer of an array |
| pos() | Alias of 当前的（） |
| 上一页() | Rewinds the internal array pointer |
| 范围（） | Creates an array containing a range of elements |
| 重置（） | Sets the internal pointer of an array to its first element |
| rsort() | Sorts an indexed array in descending order |
| 洗牌（） | Shuffles an array |
| sizeof() | Alias of 数数（） |
| 种类（） | Sorts an indexed array in ascending order |
| uasort() | Sorts an array by values using a user-defined comparison function |
| uksort() | Sorts an array by keys using a user-defined comparison function |
| usort() | Sorts an array using a user-defined comparison function |
