| 1 | array() | Creates an array | array |
| 2 | array_change_key_case() | Changes all keys in an array to lowercase or uppercase | array |
| 3 | array_chunk() | Splits an array into chunks of arrays | array |
| 4 | array_column() | Returns the values from a single column in the input array | array |
| 5 | array_combine() | Creates an array by using the elements from one "keys" array and one "values" array | array |
| 6 | array_count_values() | Counts all the values of an array | array |
| 7 | array_diff() | Compare arrays, and returns the differences (compare values only) | array |
| 8 | array_diff_assoc() | Compare arrays, and returns the differences (compare keys and values) | array |
| 9 | array_diff_key() | Compare arrays, and returns the differences (compare keys only) | array |
| 10 | array_diff_uassoc() | Compare arrays, and returns the differences (compare keys and values, using a user-defined key comparison function) | array |
| 11 | array_diff_ukey() | Compare arrays, and returns the differences (compare keys only, using a user-defined key comparison function) | array |
| 12 | array_fill() | Fills an array with values | array |
| 13 | array_fill_keys() | Fills an array with values, specifying keys | array |
| 14 | array_filter() | Filters the values of an array using a callback function | array |
| 15 | array_flip() | Flips/Exchanges all keys with their associated values in an array | array |
| 16 | array_intersect() | Compare arrays, and returns the matches (compare values only) | array |
| 17 | array_intersect_assoc() | Compare arrays and returns the matches (compare keys and values) | array |
| 18 | array_intersect_key() | Compare arrays, and returns the matches (compare keys only) | array |
| 19 | array_intersect_uassoc() | Compare arrays, and returns the matches (compare keys and values, using a user-defined key comparison function) | array |
| 20 | array_intersect_ukey() | Compare arrays, and returns the matches (compare keys only, using a user-defined key comparison function) | array |
| 21 | array_key_exists() | Checks if the specified key exists in the array | array |
| 22 | array_keys() | Returns all the keys of an array | array |
| 23 | array_map() | Sends each value of an array to a user-made function, which returns new values | array |
| 24 | array_merge() | Merges one or more arrays into one array | array |
| 25 | array_merge_recursive() | Merges one or more arrays into one array recursively | array |
| 26 | array_multisort() | Sorts multiple or multi-dimensional arrays | array |
| 27 | array_pad() | Inserts a specified number of items, with a specified value, to an array | array |
| 28 | array_pop() | Deletes the last element of an array | array |
| 29 | array_product() | Calculates the product of the values in an array | array |
| 30 | array_push() | Inserts one or more elements to the end of an array | array |
| 31 | array_rand() | Returns one or more random keys from an array | array |
| 32 | array_reduce() | Returns an array as a string, using a user-defined function | array |
| 33 | array_replace() | Replaces the values of the first array with the values from following arrays | array |
| 34 | array_replace_recursive() | Replaces the values of the first array with the values from following arrays recursively | array |
| 35 | array_reverse() | Returns an array in the reverse order | array |
| 36 | array_search() | Searches an array for a given value and returns the key | array |
| 37 | array_shift() | Removes the first element from an array, and returns the value of the removed element | array |
| 38 | array_slice() | Returns selected parts of an array | array |
| 39 | array_splice() | Removes and replaces specified elements of an array | array |
| 40 | array_sum() | Returns the sum of the values in an array | array |
| 41 | array_udiff() | Compare arrays, and returns the differences (compare values only, using a user-defined key comparison function) | array |
| 42 | array_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) | array |
| 43 | array_udiff_uassoc() | Compare arrays, and returns the differences (compare keys and values, using two user-defined key comparison functions) | array |
| 44 | array_uintersect() | Compare arrays, and returns the matches (compare values only, using a user-defined key comparison function) | array |
| 45 | array_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) | array |
| 46 | array_uintersect_uassoc() | Compare arrays, and returns the matches (compare keys and values, using two user-defined key comparison functions) | array |
| 47 | array_unique() | Removes duplicate values from an array | array |
| 48 | array_unshift() | Adds one or more elements to the beginning of an array | array |
| 49 | array_values() | Returns all the values of an array | array |
| 50 | array_walk() | Applies a user function to every member of an array | array |