Browse the database of various hooks and filters available in Paid Memberships Pro. Select a hook or filter to view detailed information, examples, and related articles with code recipes.

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Filter Hook: Filter parameters to the ReturnURL when checking out with PayPal Express. Returns an array of key, value pairs. { return array(“option” => “1”); }

Filter Hook: Change or add parameters to an name-value-pair string sent to PayPal in a couple cases. Passes the nvpString and order object.