Using Gravity Forms ‘gform_payment_details’ PHP filter
The article provides information on using the `gform_payment_details` PHP filter in Gravity Forms, including its purpose, usage, parameters, examples, and benefits.
wp_redirect
Using WordPress ‘activate_plugin()’ PHP function
Attempts activation of plugin in a “sandbox” and redirects on success.
Using WordPress ‘get_blogaddress_by_id()’ PHP function
The `get_blogaddress_by_id()` function in WordPress retrieves a full blog URL given a blog ID
Using WordPress ‘is_trackback()’ PHP function
Determines whether the query is for a trackback endpoint call.