We are given an array with key-value pair, and we need to find the last value of array without affecting the array pointer.
Examples:
Input : $arr = array('c1' => 'Red', 'c2' => 'Green',
'c3' => 'Blue', 'c4' => 'Black')
Output : Black
Input : $arr = array('p1' => 'New York', 'p2' => 'Germany',
'p3' => 'England', 'p4' => 'France')
Output : France
The above problem can be easily solved using PHP. The idea is to create a copy of the original array and then use the array_pop() inbuilt function, to get the last value of the array. As we are using the array_pop() function on the copy array, so the pointer of the original array remains unchanged.
Built-in function used:
- array_pop(): The function is used to delete or pop the last element of an array.
Below is the implementation of the above approach:
<?php           // Input Array     $array = array('c1' => 'Delhi', 'c2' => 'Kolkata',                     'c3' => 'Mumbai', 'c4' => 'Bangalore');               // Copied Array     $copyArray = $array;           // getting last element from Copied array        $lastElement = array_pop($copyArray);               // displaying the last element of the array     print_r($lastElement."\n");               // displaying the original array     print_r($array);           ?>    |
Output:
Bangalore
Array
(
[c1] => Delhi
[c2] => Kolkata
[c3] => Mumbai
[c4] => Bangalore
)
