: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
* Controller for front-end requests, scripts, and styles
* Handles a submission in non-Ajax mode.
function wpcf7_control_init() {
if ( WPCF7_Submission::is_restful() ) {
if ( isset( $_POST['_wpcf7'] ) ) {
$contact_form = wpcf7_contact_form( (int) $_POST['_wpcf7'] );
* Registers main scripts and styles.
$asset_file = wpcf7_plugin_path( 'includes/js/index.asset.php' );
if ( file_exists( $asset_file ) ) {
$assets = include( $asset_file );
$assets = wp_parse_args( $assets, array(
'dependencies' => array(),
'version' => WPCF7_VERSION,
wpcf7_plugin_url( 'includes/js/index.js' ),
array( 'in_footer' => true )
wp_set_script_translations( 'contact-form-7', 'contact-form-7' );
'contact-form-7-html5-fallback',
wpcf7_plugin_url( 'includes/js/html5-fallback.js' ),
array( 'jquery-ui-datepicker' ),
array( 'in_footer' => true )
wpcf7_plugin_url( 'includes/css/styles.css' ),
wpcf7_plugin_url( 'includes/css/styles-rtl.css' ),
array( 'contact-form-7' ),
'includes/js/jquery-ui/themes/smoothness/jquery-ui.min.css'
if ( wpcf7_load_css() ) {
function wpcf7_enqueue_scripts() {
wp_enqueue_script( 'contact-form-7' );
'root' => sanitize_url( get_rest_url() ),
'namespace' => 'contact-form-7/v1',
if ( defined( 'WP_CACHE' ) and WP_CACHE ) {
wp_localize_script( 'contact-form-7', 'wpcf7', $wpcf7 );
do_action( 'wpcf7_enqueue_scripts' );
* Returns true if the main script is enqueued.
function wpcf7_script_is() {
return wp_script_is( 'contact-form-7' );
function wpcf7_enqueue_styles() {
wp_enqueue_style( 'contact-form-7' );
wp_enqueue_style( 'contact-form-7-rtl' );
do_action( 'wpcf7_enqueue_styles' );
* Returns true if the main stylesheet is enqueued.
function wpcf7_style_is() {
return wp_style_is( 'contact-form-7' );
* Enqueues scripts and styles for the HTML5 fallback.
function wpcf7_html5_fallback() {
if ( ! wpcf7_support_html5_fallback() ) {
if ( wpcf7_script_is() ) {
wp_enqueue_script( 'contact-form-7-html5-fallback' );
if ( wpcf7_style_is() ) {
wp_enqueue_style( 'jquery-ui-smoothness' );