PHP how to make an array global

PHP: Make an array global with example; learn how to make your variables accessible from anywhere in your script.

Making an Array Global in PHP

An array is a useful data structure in PHP that can be used to store multiple values. While an array is usually scoped to a local function or class, there are times when it is necessary to make an array available to the entire application. To do this, you must make the array global in PHP.

To make an array global in PHP, you must use the global keyword at the beginning of the array declaration. This tells PHP that the array is meant to be accessible from any part of the application. For example, here is how you would make an array global in PHP:

global $myArray = array(
    'foo' => 'bar',
    'baz' => 'qux'
);

Once the array has been declared as global, you can access it anywhere in your PHP application. For example, if you need to access the $myArray array from within a function, you can do so without having to pass it as a parameter:

function printArray() {
    global $myArray;
    print_r($myArray);
}

In this example, the $myArray array is accessible from within the printArray function. This is because it was declared as global at the beginning of the array declaration. By declaring an array as global, it can be accessed from any part of your application.

It is important to note that, while global variables can be useful in certain situations, they should generally be avoided as much as possible. This is because global variables can lead to unexpected behavior and make code harder to debug. As such, it is best to only use global variables when absolutely necessary.