Method setFrameAt

text-to-qr/lib/phpqrcode/phpqrcode.php:3135–3138

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($at, $val)

        
        //----------------------------------------------------------------------
        public function setFrameAt($at, $val)
        {
            $this->frame[$at['y']][$at['x']] = chr($val);
        }
        
        //----------------------------------------------------------------------
        public function getFrameAt($at)