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Current Path : /home/scgforma/www/soc064/htdocs/includes/mike42/escpos-php/example/ |
Current File : /home/scgforma/www/soc064/htdocs/includes/mike42/escpos-php/example/qr-code.php |
<?php /* Demonstration of available options on the qrCode() command */ require_once(dirname(__FILE__) . "/../Escpos.php"); $printer = new Escpos(); // Most simple example title($printer, "QR code demo\n"); $testStr = "Testing 123"; $printer -> qrCode($testStr); $printer -> text("Most simple example\n"); $printer -> feed(); // Demo that alignment is the same as text $printer -> setJustification(Escpos::JUSTIFY_CENTER); $printer -> qrCode($testStr); $printer -> text("Same example, centred\n"); $printer -> setJustification(); $printer -> feed(); // Demo of numeric data being packed more densly title($printer, "Data encoding\n"); $test = array( "Numeric" => "0123456789012345678901234567890123456789", "Alphanumeric" => "abcdefghijklmnopqrstuvwxyzabcdefghijklmn", "Binary" => str_repeat("\0", 40)); foreach($test as $type => $data) { $printer -> qrCode($data); $printer -> text("$type\n"); $printer -> feed(); } // Demo of error correction title($printer, "Error correction\n"); $ec = array( Escpos::QR_ECLEVEL_L => "L", Escpos::QR_ECLEVEL_M => "M", Escpos::QR_ECLEVEL_Q => "Q", Escpos::QR_ECLEVEL_H => "H"); foreach($ec as $level => $name) { $printer -> qrCode($testStr, $level); $printer -> text("Error correction $name\n"); $printer -> feed(); } // Change size title($printer, "Pixel size\n"); $sizes = array( 1 => "(minimum)", 2 => "", 3 => "(default)", 4 => "", 5 => "", 10 => "", 16 => "(maximum)"); foreach($sizes as $size => $label) { $printer -> qrCode($testStr, Escpos::QR_ECLEVEL_L, $size); $printer -> text("Pixel size $size $label\n"); $printer -> feed(); } // Change model title($printer, "QR model\n"); $models = array( Escpos::QR_MODEL_1 => "QR Model 1", Escpos::QR_MODEL_2 => "QR Model 2 (default)", Escpos::QR_MICRO => "Micro QR code\n(not supported on all printers)"); foreach($models as $model => $name) { $printer -> qrCode($testStr, Escpos::QR_ECLEVEL_L, 3, $model); $printer -> text("$name\n"); $printer -> feed(); } // Cut & close $printer -> cut(); $printer -> close(); function title(Escpos $printer, $str) { $printer -> selectPrintMode(Escpos::MODE_DOUBLE_HEIGHT | Escpos::MODE_DOUBLE_WIDTH); $printer -> text($str); $printer -> selectPrintMode(); }