: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
// Preventing to direct access
defined( 'ABSPATH' ) OR die( 'Direct access not acceptable!' );
public function __construct() {
add_action( "wp_ajax_wws_edit_multi_support_person", array( $this, 'edit_multi_support_person' ) );
add_action( "wp_ajax_nopriv_wws_edit_multi_support_person", array( $this, 'edit_multi_support_person' ) );
add_action( "wp_ajax_wws_add_multi_support_person", array( $this, 'add_multi_support_person' ) );
add_action( "wp_ajax_nopriv_wws_add_multi_support_person", array( $this, 'add_multi_support_person' ) );
add_action( "wp_ajax_wws_admin_qr_generator", array( $this, 'admin_qr_generator' ) );
add_action( "wp_ajax_nopriv_wws_admin_qr_generator", array( $this, 'admin_qr_generator' ) );
public function edit_multi_support_person() {
if ( ! isset( $_GET['action'] ) && 'wws_edit_multi_support_person' !== $_GET['action']) {
$person_id = $_GET['person_id'];
$setting = get_option( 'wws_multi_support_persons', array() );
require_once WWS_PLUGIN_PATH . 'includes/admin/views/multiperson-support/admin-edit-multiperson-support.php';
public function add_multi_support_person() {
if ( ! isset( $_GET['action'] ) && 'wws_add_multi_support_person' !== $_GET['action'] ) {
require_once WWS_PLUGIN_PATH . 'includes/admin/views/multiperson-support/admin-add-multiperson-support.php';
public function admin_qr_generator() {
$support_number = sanitize_text_field( $_POST['support_number'] );
$pre_message = sanitize_textarea_field( $_POST['pre_message'] );
$qr_size = sanitize_text_field( $_POST['qr_size'] );
$url = "https://api.whatsapp.com/send?phone={$support_number}";
$image_name = WWS_QR_Generator::generate( $url, $qr_size );
$upload_dir = wp_upload_dir();
$qr = $upload_dir['baseurl'] . '/wws-qr-images/' . $image_name;
$response['shortcode'] = "[wws-qr qr='{$image_name}' size='{$qr_size} text='{$pre_message}']";
$response['generatedQR'] = $qr;
$response['preMessage'] = $pre_message;
echo json_encode( $response );
} // end of WWS_Admin_Ajax class
$wws_admin_ajax = new WWS_Admin_Ajax;