Add_action wpcf7_before_send_mail wpcf7_do_something_else

A WordPress hook!

add_action is a WordPress function that allows you to attach a callback function to a specific action hook. In this case, you're attaching a function to the wpcf7_before_send_mail action hook, which is triggered just before Contact Form 7 (WPCF7) sends an email.

The wpcf7_do_something_else function is the callback function that will be executed when the wpcf7_before_send_mail action hook is triggered.

Here's the breakdown:

By using add_action, you're essentially saying: "Hey, WordPress! When the wpcf7_before_send_mail action hook is triggered, execute the wpcf7_do_something_else function."

Here's an example of how you might use this hook:

function wpcf7_do_something_else($contact_form) {
    // Do something else before sending the email
    // For example, you could log the form submission to a database
    error_log('Form submitted: '. print_r($contact_form, true));
}

add_action('wpcf7_before_send_mail', 'wpcf7_do_something_else');

In this example, the wpcf7_do_something_else function takes a $contact_form parameter, which is an instance of the WPCF7_ContactForm class. You can use this object to access various form-related data, such as the form's title, fields, and submission data.

Remember to replace wpcf7_do_something_else with the actual name of your callback function.