public function sanitize(string $input) : string
    {
        $input = $this->_connection->getConnection()->quote($input);

        return substr($input, 1, -1);
    }
public function sanitize(string $input) : string
    {
        $input = $this->_connection->getConnection()->quote($input);

        return substr($input, 1, -1);
    }
public function sanitize ( string $ input ) : string { $ input = $ this -> _connection -> getConnection ( ) -> quote ( $ input ) ; return substr ( $ input , 1 , - 1 ) ; }
Sanitizes the input.

@param string $input Input to sanitize.

@return string SQL injection free `$input`.
Sanitizes the input .