How can the value of radio buttons be passed from one PHP file to another?

To pass the value of radio buttons from one PHP file to another, you can use the $_POST superglobal to retrieve the selected value and then pass it as a parameter in a URL or through a form submission. In the receiving PHP file, you can access the passed value using $_GET or $_POST depending on how it was sent. 

// Sending PHP file
<form action="receiver.php" method="post">
    <input type="radio" name="radio_button" value="option1"> Option 1
    <input type="radio" name="radio_button" value="option2"> Option 2
    <input type="submit" value="Submit">
</form>

// Receiving PHP file
<?php
if(isset($_POST['radio_button'])){
    $selected_value = $_POST['radio_button'];
    // Use $selected_value as needed
}
?>

Keywords

PHP radio buttons form submission POST method data transfer

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