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функция не описана

WPCF7_ConstantContact::display() public CF7 1.0

{} Это метод класса: WPCF7_ConstantContact{}

Хуков нет.

Возвращает

Null. Ничего.

Использование

$WPCF7_ConstantContact = new WPCF7_ConstantContact();
$WPCF7_ConstantContact->display( $action );

Код WPCF7_ConstantContact::display() CF7 5.3.2

<?php
public function display( $action = '' ) {
	echo '<p>' . sprintf(
		esc_html( __( 'The Constant Contact integration module allows you to send contact data collected through your contact forms to the Constant Contact API. You can create reliable email subscription services in a few easy steps. For details, see %s.', 'contact-form-7' ) ),
		wpcf7_link(
			__(
				'https://contactform7.com/constant-contact-integration/',
				'contact-form-7'
			),
			__( 'Constant Contact integration', 'contact-form-7' )
		)
	) . '</p>';

	if ( $this->is_active() ) {
		echo sprintf(
			'<p class="dashicons-before dashicons-yes">%s</p>',
			esc_html( __( "This site is connected to the Constant Contact API.", 'contact-form-7' ) )
		);
	}

	if ( 'setup' == $action ) {
		$this->display_setup();
	} else {
		echo sprintf(
			'<p><a href="%1$s" class="button">%2$s</a></p>',
			esc_url( $this->menu_page_url( 'action=setup' ) ),
			esc_html( __( 'Setup Integration', 'contact-form-7' ) )
		);
	}
}