Add elements to array using PHP array_push() function

PHP array_push() function is a very practical function that can add new elements to the end of an existing array. This article will explain how to use the PHP array_push() function to add elements to an array.

1. Syntax analysis of array_push() function

array_push() function can add one or more elements to the end of the array at a time. Its syntax is as follows:

array_push(array, value1, value2, ...);

Among them, array is required, indicating the array of elements to be added; value1, value2, ... is optional, indicating that to be added value.

2. Example Demonstration

Now let’s look at a specific example, assuming we have an array containing three elements, as shown below:

$fruit = array("apple", "pear", "banana");

We need to add two new fruits to the end of the array, namely oranges and grapes, then we can write like this:

array_push($fruit, "orange", "grape");

At this time, the content of the $fruit array becomes:

array("apple", " Pear", "banana", "orange", "grape");

3. Details to note

In actual work, we need to pay attention to the following issues:

(1) The array_push() function can only add elements to the end of the array and cannot add elements to other positions in the array. If you need to add an element at a specified position, you can use PHP's array_splice() function.

(2) The array_push() function can add one or more elements. If the element to be added is an array, you can use the array_merge() function to merge the two arrays and then add them.

(3) The array_push() function does not return a new array, but directly modifies the original array. Therefore, in actual applications, you need to pay attention to whether the content of the original array has changed.

4. Summary

PHP array_push() function is a convenient and fast way to add elements to the end of an array. You need to pay attention to some details when using it, which can greatly enhance development efficiency.

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