How to add an element to php array

In PHP, adding an element to an array is very simple. The following two methods can be used:

Method 1: Use the array_push() function

The array_push() function adds one or more elements to the end of the array. The syntax is as follows:

array_push($array, $element1, $element2, ...);

Among them, $array is the array to which elements are to be added, $element1, $element2 are the elements to be added. Multiple elements can be added up to the last parameter.

For example, add an element to the array:

$arr = array("red", "green", "blue");
array_push($arr, "yellow");
print_r($arr);

The output is:

Array
(
    [0] => red
    [1] => green
    [2] => blue
    [3] => yellow
)

Method 2: Use the [] operator

In PHP, The [] operator can be used to add elements to the end of an array. The syntax is as follows:

$array[] = $element;

Among them, $array is the array to which elements are to be added, and $element is the element to be added.

For example, adding an element to an array:

$arr = array("red", "green", "blue");
$arr[] = "yellow";
print_r($arr);

The output is:

Array
(
    [0] => red
    [1] => green
    [2] => blue
    [3] => yellow
)

Summary

Both of the above methods can be used in PHP Add an element to the array. The array_push() function can add one or more elements, while the [] operator can only add one element. Which method you choose depends on your specific needs.

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