Fine-tuning & Tweaking.Barcodes Generation

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This example demonstrates how you can generate and display one-dimensional (Code 128) and two-dimensional (QR codes) barcodes on your pages. This feature is not incorporated directly into the PHP Generator kernel but can be easily implemented with any suitable external PHP library. In the example below php-barcode-generator and PHP QR Code libraries are used for generation one-dimensional and two-dimensional barcodes respectively.

The Continent: Country value is encoded in both barcodes that are generated and rendered in the OnCustomRenderColumn event handler. Click the button to get familiar with the event handler code.

        protected function doCustomRenderColumn($fieldName, $fieldData, $rowData, &$customText, &$handled)
        { 
            if ($fieldName == 'barcode' || $fieldName == 'qrcode') {
                $valueToEncode = sprintf('%s: %s', $rowData['continent'], $rowData['name']);
                if ($fieldName == 'barcode') {
                    $barcodeGenerator = new \Picqer\Barcode\BarcodeGeneratorPNG();
                    $encodedValue = $barcodeGenerator->getBarcode($valueToEncode, $barcodeGenerator::TYPE_CODE_128); 
                } else {
                    ob_start();
                    QRCode::png($valueToEncode, null);
                    $encodedValue = ob_get_contents();
                    ob_end_clean();    
                }
                $customText = '<img src="data:image/png;base64,' . base64_encode($encodedValue) . '" class="barcode">';
                $handled = true;
            }
        }

Actions	Code	Country	Continent	Population
	BGR	Bulgaria	Europe	8,190,900
	BHR	Bahrain	Asia	617,000
	BHS	Bahamas	North America	307,000
	BIH	Bosnia and Herzegovina	Europe	3,972,000
	BLR	Belarus	Europe	10,236,000
	BLZ	Belize	North America	241,000
	BMU	Bermuda	North America	65,000
	BOL	Bolivia	South America	8,329,000
	BRA	Brazil	South America	170,115,000
	BRB	Barbados	North America	270,000
	BRN	Brunei	Asia	328,000
	BTN	Bhutan	Asia	2,124,000
	BWA	Botswana	Africa	1,622,000
	CAF	Central African Republic	Africa	3,615,000
	CAN	Canada	North America	31,147,000
	CCK	Cocos (Keeling) Islands	Oceania	600
	CHE	Switzerland	Europe	7,160,400
	CHL	Chile	South America	15,211,000
	CHN	China	Asia	1,277,558,000
	CIV	Côte d’Ivoire	Africa	14,786,000
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Pro	Pages illustrating features available only in the Professional edition of PHP Generator.

Created with PHP Generator for MySQL. Want to learn more? Download the demo project!

Fine-tuning & Tweaking.Barcodes Generation

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