i do define( 'WP_DEBUG', true ); in public_html/wp-config.php and I saw this error messag in wp-admin

Notice: Trying to access array offset on value of type bool in /home/urbanit1/public_html/wp-content/plugins/no-captcha-recaptcha-for-woocommerce/base-class.php on line 24

line 24 in base-class.php :

self::$site_key = self::$plugin_options['site_key'];

Please help to solve this problem

code:

<?php


class WC_Ncr_No_Captcha_Recaptcha {

    /** @var string captcha site key */
    static private $site_key;

    /** @var string captcha secrete key */
    static private $secret_key;

    static private $theme;

    static private $language;

    static protected $error_message;

    static protected $plugin_options;

    public static function initialize() {

        self::$plugin_options = get_option( 'wc_ncr_options' );

        self::$site_key = self::$plugin_options['site_key'];

        self::$secret_key = self::$plugin_options['secrete_key'];

        self::$theme = self::$plugin_options['theme'];

        self::$language = self::$plugin_options['language'];

        self::$error_message = self::$plugin_options['error_message'];


        add_action( 'plugins_loaded', array( __CLASS__, 'load_plugin_textdomain' ) );

        // initialize if login is activated
        if ( ( isset( self::$plugin_options['captcha_wc_registration'] ) && self::$plugin_options['captcha_wc_registration'] == 'yes' ) || ( isset( self::$plugin_options['captcha_wc_login'] ) && self::$plugin_options['captcha_wc_login'] == 'yes' ) || ( isset( self::$plugin_options['captcha_wc_password_reset'] ) && self::$plugin_options['captcha_wc_password_reset'] == 'yes' ) ) {
            add_action( 'wp_head', array( __CLASS__, 'header_script' ) );
        }
    }

    public static function load_plugin_textdomain() {
        load_plugin_textdomain( 'wc-no-captcha', false, basename( dirname( __FILE__ ) ) . '/languages/' );
    }

    /** reCAPTCHA header script */
    public static function header_script() {

        $lang_option = self::$plugin_options['language'];

        // if language is empty (auto detected chosen) do nothing otherwise add the lang query to the
        // reCAPTCHA script url
        if ( isset( $lang_option ) && ( ! empty( $lang_option ) ) ) {
            $lang = "?hl=$lang_option";
        } else {
            $lang = null;
        }

        echo '<script src="https://www.google.com/recaptcha/api.js' . $lang . '" async defer></script>' . "\r\n";
    }


    /** Output the reCAPTCHA form field. */
    public static function display_captcha() {

        echo '<div  data-sitekey="' . self::$site_key . '" data-theme="' . self::$theme . '"></div>';
    }

    /**
     * Send a GET request to verify captcha challenge
     *
     * @return bool
     */
    public static function captcha_wc_verification() {

        $response = isset( $_POST['g-recaptcha-response'] ) ? esc_attr( $_POST['g-recaptcha-response'] ) : '';

        $remote_ip = $_SERVER["REMOTE_ADDR"];

        // make a GET request to the Google reCAPTCHA Server
        $request = wp_remote_get(
            'https://www.google.com/recaptcha/api/siteverify?secret=' . self::$secret_key . '&response=' . $response . '&remoteip=' . $remote_ip
        );

        // get the request response body
        $response_body = wp_remote_retrieve_body( $request );

        $result = json_decode( $response_body, true );

        return $result['success'];
    }


    public static function on_activation() {
        if ( ! current_user_can( 'activate_plugins' ) ) {
            return;
        }
        $plugin = isset( $_REQUEST['plugin'] ) ? $_REQUEST['plugin'] : '';
        check_admin_referer( "activate-plugin_{$plugin}" );

        $default_options = array(
            'captcha_wc_registration' => 'yes',
            'captcha_wc_comment'      => 'yes',
            'theme'                => 'light',
            'error_message'        => __('<strong>ERROR</strong>: Please confirm you are not a robot', 'wc-no-captcha')
        );

        add_option( 'wc_ncr_options', $default_options );
    }

    public static function on_uninstall() {
        if ( ! current_user_can( 'activate_plugins' ) ) {
            return;
        }

        delete_option( 'wc_ncr_options' );
    }
}

CodePudding user response：

your problem is self::$plugin_options = get_option( 'wc_ncr_options' ); it does not provide a default value so if the option is not saved it will just return false so then when you try and use it as an array your getting these errors, effectively what your doing is $test = false; $test['site_key'] that will always fail with some array error.

you should provide default values for the get_option

E.G

get_option( 'wc_ncr_options', ['site_key' => "some value", ...] );