mixed array_pop ( array &$array )
array_pop() pops and returns the last value of the array, shortening the array by one element. If array is empty (or is not an array), NULL will be returned. Will additionally produce a Warning when called on a non-array. Note: This function will reset() the array pointer of the input array after use.
Returns the last value of array. If array is empty (or is not an array), NULL will be returned.