How to easily delete the first item of an array in php

PHP is a popular programming language that can handle arrays easily, so it is widely used in web development. Although PHP provides many built-in functions to handle arrays, how to remove the first item from an array is a problem that bothers many people. In this article, we will discuss how to easily delete the first item of an array using PHP.

First, let’s take a look at how to use the array_shift() function to delete the first item of an array. The array_shift() function removes the first element from the array and returns the value of that element. Here is a simple example:

<?php
$fruits = array("apple", "banana", "orange");
$first_fruit = array_shift($fruits);
echo "The first fruit is $first_fruit";
?>

The output of the above example is as follows:

The first fruit is apple

As you can see, in the above code, we use the array_shift() function to remove the first One element, namely "apple". Then the array is processed, and the result is as follows:

Array
(
    [0] => banana
    [1] => orange
)

In the above example, the $first_fruit variable contains the value of the deleted element. But if you just want to remove the element and throw it away, you can use the following code:

<?php
$fruits = array("apple", "banana", "orange");
array_shift($fruits);
print_r($fruits);
?>

The output will be as follows:

Array
(
    [0] => banana
    [1] => orange
)

In the above code, we have not declared a variable to store the removed The value of the element, but directly uses the print_r() function to print the array. Now, the $fruits variable only contains the remaining elements, which are "banana" and "orange".

In addition to the array_shift() function, you can also use the array_slice() function to delete the first element of the array. The array_slice() function is used to extract a segment of elements from an array and return its subarray. If we use the array_slice() function to extract all elements starting from index position 1 as shown below:

<?php
$fruits = array("apple", "banana", "orange");
$fruits = array_slice($fruits, 1);
print_r($fruits);
?>

The output obtained is the same as the above delete function:

Array
(
    [0] => banana
    [1] => orange
)

In the above code , we use the array_slice() function to extract all elements starting from index position 1 and store them back in the $fruits variable. Therefore, the first element "apple" is removed and only "banana" and "orange" are left in the array.

Summary:

In PHP, you can easily delete the first element of an array using the array_shift() or array_slice() function. If you need to remove other elements, you can use a similar method to array_slice(). Hope this article helps you to work with arrays easily.

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