PHP Functions for Detecting HTTP Request Types (GET, POST, PUT, DELETE, PATCH, AJAX)

RESTful APIs are widely used in modern backend development, and detecting the HTTP request method is essential for handling client interactions correctly.

1. Get Request Method

function get_request_method() {
    return $_SERVER['REQUEST_METHOD'];
}

2. Is POST Request

function is_post() {
    if ($_POST) {
        return true;
    } else {
        return false;
    }
}

3. Is GET Request

function is_get() {
    if ($_GET) {
        return true;
    } else {
        return false;
    }
}

4. Is PUT Request

function is_put() {
    if ($_SERVER['REQUEST_METHOD'] == 'PUT') {
        return true;
    } else {
        return false;
    }
}

5. Is PATCH Request

function is_patch() {
    if ($_SERVER['REQUEST_METHOD'] == 'PATCH') {
        return true;
    } else {
        return false;
    }
}

6. Is DELETE Request

function is_delete() {
    if ($_SERVER['REQUEST_METHOD'] == 'DELETE') {
        return true;
    } else {
        return false;
    }
}

7. Is AJAX Request

function is_ajax() {
    if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
        return true;
    } else {
        return false;
    }
}

These utility functions can be copied directly into a PHP project to quickly enable request-type detection for RESTful services.