How can data be passed back from a PHP file (e.g., function.php) to the index.php file?

To pass data back from a PHP file to another file, such as from function.php to index.php, you can use the return statement in the function within function.php. This will allow the function to return a value that can be captured and used in index.php. You can then call the function in index.php and store the returned value in a variable for further processing. 

// function.php
function getData() {
    $data = "This is the data to be passed back.";
    return $data;
}

// index.php
include 'function.php';

$data = getData();
echo $data; // Output: This is the data to be passed back.

Keywords

PHP data passing return value function index file

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