function drawBars(&$im) { // Checksum $this->calculateChecksum(); $temp_text = $this->text . $this->keys[$this->checksumValue]; // Starting Code $this->drawChar($im, '000', true); // Draw Second Code $this->drawChar($im, $this->findCode($temp_text[1]), false); // Draw Manufacturer Code for ($i = 0; $i < 5; $i++) { $this->drawChar($im, BCGean13::inverse($this->findCode($temp_text[$i + 2]), $this->codeParity[(int) $temp_text[0]][$i]), false); } // Draw Center Guard Bar $this->drawChar($im, '00000', false); // Draw Product Code for ($i = 7; $i < 13; $i++) { $this->drawChar($im, $this->findCode($temp_text[$i]), true); } // Draw Right Guard Bar $this->drawChar($im, '000', true); }