Support » Plugin: DB Cache Reloaded Fix » DB Cache Reloaded Fix and User Spam Remover conflict

  • When I activate DB Cache Reloaded Fix on a site running the User Spam Remover plugin, I get an error in the latter:
    Catchable fatal error: Argument 1 passed to UserSpamRemover::__construct() must be an instance of wpdb, instance of dbrc_wpdb given, called in /home/mysite/public_html/wp-content/plugins/user-spam-remover/user-spam-remover.php on line 113 and defined in /home/mysite/public_html/wp-content/plugins/user-spam-remover/user-spam-remover.php on line 92

    If I deactivate DB Cache Reloaded Fix, the error goes away. I also posted about the problem here.

    Any ideas? Thanks.

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  • Plugin Author Ivan Kristianto


    User Spam Remover use wpdb class in the it’s constructor on line 92.
    Here is the quick fix, change the constructor (line 91) into this:

    // Constructor runs once only, since private and called only by getInstance()
      private function __construct() {
    	global $wpdb;
        self::$defaults['logDir'] = dirname(__FILE__).'/log';
        $this->wpdb = $wpdb;
        // initialize config vars from WordPress options table
        $this->timezone = get_option('timezone_string');
        foreach (self::$defaults as $key => $default) {
          $this->config[$key] = get_option(self::$wpOptGroup.$key, $default);



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