What is the purpose of using index.php?action=blabla in PHP?

Using index.php?action=blabla in PHP is a common way to create dynamic web pages that perform different actions based on the value of the "action" parameter in the URL. This allows for a single PHP file to handle multiple functionalities by checking the value of the "action" parameter and executing the corresponding code. To implement this, you can use a switch statement in your PHP code to determine the action and execute the appropriate code block based on the value of the "action" parameter. 

<?php
// Check if the 'action' parameter is set in the URL
if(isset($_GET['action'])) {
    // Assign the value of the 'action' parameter to a variable
    $action = $_GET['action'];

    // Use a switch statement to determine the action and execute the corresponding code
    switch($action) {
        case 'blabla':
            // Code to execute for the 'blabla' action
            echo "Performing action 'blabla'";
            break;
        case 'anotherAction':
            // Code to execute for another action
            echo "Performing another action";
            break;
        default:
            // Default action if 'action' parameter does not match any case
            echo "Invalid action";
    }
} else {
    // Default action if 'action' parameter is not set
    echo "No action specified";
}
?>

Keywords

index.php action URL parameters PHP routing

Related Questions