How to Use PHP’s array_pop to Remove the Last Element from an Array

In PHP, we often need to manipulate array data, and sometimes we need to extract the last element of an array for further processing. PHP provides a convenient function called array_pop for this purpose.

The array_pop function removes and returns the last element of an array. Its syntax is: mixed array_pop ( array &$array ) The function accepts an array by reference, removes the last element, and returns that element. If the array is empty, it returns null.

Below is a code example that demonstrates how to use array_pop :

<?php
// Define an array
$fruits = array("apple", "banana", "orange", "grape");

// Use array_pop to pop and return the last element
$last_fruit = array_pop($fruits);

// Output the popped element
echo "Popped element: " . $last_fruit . "
";

// Output the remaining array
echo "Remaining array:
";
print_r($fruits);
?>

The code defines an array named $fruits containing several fruit names, uses array_pop to remove the last element, assigns it to $last_fruit, and prints it. It then prints the remaining array using print_r.

Running the code produces the following output:

Popped element: grape
Remaining array:
Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

As shown, array_pop removes the last element grape from the array and returns it, leaving the array with the remaining fruit names.

Summary

By using PHP's array_pop function, we can easily pop and return the last element of an array, making it a handy tool for handling array data.