Here is a list of all documented namespace functions with links to the namespaces they belong to:

- r -

• refresh_page_numbers() : mod_quiz
• refresh_page_numbers_and_update_db() : mod_quiz
• remove_section_heading() : mod_quiz
• remove_slot() : mod_quiz
• replaceCustomHeader() : PHPMailer\PHPMailer
• request() : communication_matrix
• requestAsync() : GuzzleHttp
• reset_component_cache() : core\tests
• reset_mock() : communication_matrix
• restore_quiz() : mod_quiz\tests
• rfcDate() : PHPMailer\PHPMailer