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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.
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.
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");
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.
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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