The array_pad() function is used to padding (insert) a specified number of elements, with a specified value, into an array. Tip: If you assign a negative size parameter, the function will insert new elements BEFORE the original elements (See example…

The array_multisort() function returns a sorted array. You can assign one or more arrays. The function sorts the first array, and the other arrays follow, then, if two or more values are the same, it sorts the next array, and…

The array_merge_recursive() function is used to merge the elements of one or more arrays together. The elements of one are appended to the end of the previous one. The difference between this function and the array_merge() function is when two…

The array_merge() function merges one or more arrays into one array. If the input arrays have matching string keys, then the later value will override it’s the previous counterpart. If the input arrays contain numeric keys, the later value will…

The array_map() function sends each value of an array to a user-made function, and returns an array with new values, given by the user-made function. Tip: You can assign one array to the function, or as many as you like.…

The array_keys() function returns an array containing the keys. Note: If the optional search_key_value is specified, then only the keys for that value are returned. Otherwise, all the keys from the array are returned. Parameter Description array Required. Specifies an…

The array_key_exists() function is used to check whether a specified key is present in an array or not. The function returns TRUE if the given key is set in the array. The key can be any value possible for an…

The array_intersect_ukey() function compares the keys of two (or more) arrays, and returns the matches. The array_intersect_ukey() function compares the keys in two or more arrays, checking for matches, before comparing the keys in a user-defined function, then returns an…

The array_intersect_uassoc() function compares the keys and values of two (or more) arrays, and returns the matches. The comparison function returns an integer less than, equal to, or greater than zero if the first argument is considered to be respectively…

The array_intersect_key() is used to create an array containing keys and values of the first array whose keys (i.e. from the first array) are present in all other arrays. This function compares the keys of two or more arrays, and…