How to use array_pop function in PHP to delete the last element of an array

PHP is a very popular server-side programming language. Its array operations are very flexible. One of the very useful functions is array_pop, which can help us delete the last element of the array. In this article, we will delve into how to remove the last element of an array using the array_pop function.

1. What is the array_pop function

array_pop is a very useful function in PHP, which is used to delete the last item of the array and return the deleted element. The syntax is as follows:

mixed array_pop (array &$array)

Here, the $array parameter is the array from which we want to delete the last item, and the function returns the deleted element. It should be noted that the array_pop function will change the value of the original array.

2. How to use the array_pop function to delete the last element of the array

Below we will demonstrate step by step how to use the array_pop function to delete the last element of the array.

2.1 Create an array containing multiple elements

First, we need to create an array. Here we first create an array containing multiple elements, as shown below:

$fruits = array("apple", "banana", "orange", "grape", "mango");

This is an array containing five elements. Next we will remove the last element by using the array_pop function.

2.2 Use the array_pop function to delete the last element

Now we have created an array and want to delete its last element. For this we can use array_pop function. The following is a sample code that uses the array_pop function to delete the last element:

$last_fruit = array_pop($fruits);
echo "The deleted fruit is:" . $last_fruit . "
";
print_r($fruits);

Here, we first remove the last element using the array_pop function and assign it to the $last_fruit variable. Then, we use the echo statement to print out the deleted elements. Finally, we print out the remaining array elements using the print_r function. The output result is as follows:

The deleted fruit is: mango
Array ( [0] => apple [1] => banana [2] => orange [3] => grape )

3. Summary

In this article, we learned how to remove the last element of an array using array_pop function in PHP. This function is very useful and very simple to use. We just need to pass the array whose last element is to be deleted as the parameter of the function. Finally, it should be noted that using the array_pop function will change the value of the original array.

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