WPForms limit form entries

functions.php

<?php
/**
 * Check entry limit, if past limit display a message.
 *
 * @param array $form_data
 * @param object $form
 */
function wpf_form_check_entry_limit( $form_data, $form ) {

	global $wpf_form_open;

	$wpf_form_open  = true;
	$wpf_form_id    = 2161;
	$wpf_form_limit = 3;

	if ( ! empty( $_POST['wpforms']['id'] ) ) {
		return;
	}

	if ( $wpf_form_id == $form_data['id'] ) {

		$entries = wpforms()->entry->get_entries(
			array(
				'form_id' => $wpf_form_id,
			),
			true
		);

		if ( $entries >= $wpf_form_limit ) {

			$wpf_form_open = false;

			echo 'This form is now closed.';
		}
	}

}
add_action( 'wpforms_frontend_output_before', 'wpf_form_check_entry_limit', 10, 2 );

/**
 * Don't show the form if it is past it's entry limit
 *
 * @param bool $show
 * @param array $form_data
 * @return bool
 */
function wpf_form_check_show_form( $show, $form_data ) {

	$wpf_form_id = 2161;

	if ( $wpf_form_id == $form_data['id'] ) {

		global $wpf_form_open;

		return $wpf_form_open;
	}

	return $show;
}
add_filter( 'wpforms_frontend_load', 'wpf_form_check_show_form', 10, 2 );