These functions allow the user to interact with and manipulate arrays in various ways.
Arrays are essential for storing, managing, and operating on sets of variables.
Simple and multi-dimensional arrays are supported. It is the part of core php there for no installation is required.
| Function | Description |
|---|---|
array() |
Create an array |
array_change_key_case() |
Changes the case of all keys in an array (either lowercase or uppercase) |
array_chunk() |
Split an array into chunks of arrays |
array_column() |
Return the values from a single column in the input array |
array_combine() |
Creates an array by using one array for keys and another for its values |
array_count_values() |
Counts all the values of an array |
array_diff() |
Compare arrays values, and returns the differences |
array_diff_assoc() |
Compare arrays keys and values, and returns the differences |
array_diff_key() |
Compare arrays keys, and returns the differences |
array_diff_uassoc() |
Compare arrays keys and values, using a user-defined key comparison function, and returns the differences |
array_diff_ukey() |
Compare array keys, using a user-defined key comparison function, and returns the differences |
array_fill() |
Fill an array with values |
array_fill_keys() |
Fill an array with values, specifying keys |
array_filter() |
Filters elements of an array using a user-defined function |
array_flip() |
Flips or Exchanges all keys with their associated values in an array |
array_intersect() |
Compare arrays values, and returns the matches |
array_intersect_assoc() |
Compare arrays keys and values, and returns the matches |
array_intersect_key() |
Compare arrays keys, and returns the matches |
array_intersect_uassoc() |
Compare arrays keys and values, using a user-defined key comparison function, and returns the matches |
array_intersect_ukey() |
Compare arrays keys, using a user-defined key comparison function, and returns the matches |
array_keys() |
Return all the keys or a subset of the keys of an array |
array_key_exists() |
Checks if the specified key exists in the array |
array_map() |
Sends the elements of the given arrays to a user-defined function, which may use it to returns new values |
array_merge() |
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 |
array_pad() |
Inserts a specified number of items, with a specified value, to an array |
array_pop() |
Removes the last element of an array, and returns the value of the removed element |
array_product() |
Calculates the product of the values in an array |
array_push() |
Inserts one or more elements to the end of an array |
array_rand() |
Returns one or more random keys from an array |
array_reduce() |
Reduce the array to a single value by using a user-defined callback function |
array_replace() |
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() |
Return an array with elements in reverse order |
array_search() |
Searches an array for a given value and returns the corresponding key if successful |
array_shift() |
Removes the first element from an array, and returns the value of the removed element |
array_slice() |
Extract a slice from an array |
array_splice() |
Remove a portion of the array and replace it with something else |
array_sum() |
Calculate the sum of values in an array |
array_udiff() |
Compares only arrays values by using a user-defined comparison callback function, and returns the differences |
array_udiff_assoc() |
Compares arrays values by using a user-defined comparison callback function, with additional keys comparison using an internal (or built-in) function, and returns the differences |
array_udiff_uassoc() |
Compares arrays keys and values by using two separate user-defined comparison callback functions, and returns the differences |
array_uintersect() |
Compares only arrays values by using a user-defined comparison callback function, and returns the matches |
array_uintersect_assoc() |
Compares arrays values by using a user-defined comparison callback function, while uses an internal (or built-in) function for comparing the key, and returns the matches |
array_uintersect_uassoc() |
Compares arrays keys and values by using two separate user-defined comparison callback functions, and returns the matches |
array_unique() |
Removes duplicate values from an array |
array_unshift() |
Adds one or more elements to the beginning of an array |
array_values() |
Return all the values of an array |
array_walk() |
Applies a user-defined function to each element of an array |
array_walk_recursive() |
Applies a user-defined function recursively to each element of an array |
asort() |
Sort an associative array by value, in ascending order |
arsort() |
Sort an associative array by value, in reverse or descending order |
compact() |
Create array containing variables and their values |
count() |
Count all elements in an array |
current() |
Return the current element in an array |
each() |
Return the current key and value pair from an array and advance the array cursor |
end() |
Sets the internal pointer of an array to its last element |
extract() |
Import variables into the current symbol table from an array |
in_array() |
Checks if a value exists in an array |
key_exists() |
Checks if the specified key exists in the array. Alias of array_key_exists() |
key() |
Fetches a key from an array |
ksort() |
Sort an associative array by key, in ascending order |
krsort() |
Sort an associative array by key, in reverse or descending order |
list() |
Assign variables as if they were an array |
natcasesort() |
Sort an array using a case insensitive "natural order" algorithm |
natsort() |
Sort an array using a "natural order" algorithm |
next() |
Advance the internal array pointer of an array |
pos() |
Return the current element in an array. Alias of current() |
prev() |
Rewind the internal array pointer |
range() |
Create an array containing a range of elements |
reset() |
Set the internal pointer of an array to its first element |
rsort() |
Sort an array in reverse or descending order |
shuffle() |
Shuffle an array |
sizeof() |
Count all elements in an array. Alias of count() |
sort() |
Sort an array in ascending order |
uasort() |
Sort an array using a user-defined comparison function and maintain index association |
uksort() |
Sort an array by keys using a user-defined comparison function |
usort() |
Sort an array by values using a user-defined comparison function |