recreate project

vendor/mike42/escpos-php/example/specific/141-custom-command.php

@@ -0,0 +1,54 @@
+<?php
+require __DIR__ . '/../../vendor/autoload.php';
+use Mike42\Escpos\Printer;
+use Mike42\Escpos\PrintConnectors\FilePrintConnector;
+
+/**
+ * This example shows how to send a custom command to the printer
+ *
+ * "ESC ( B" is the barcode function for Epson LX300 series.
+ * This is not part of standard ESC/POS, but it's a good example
+ * of how to send some binary to the driver.
+ */
+
+/* Barcode type is used in this script */
+const EAN13 = 0;
+
+/* Barcode properties */
+$type = EAN13;
+$content = "0075678164125";
+
+/*
+ * Make the command.
+ * This is documented on page A-14 of:
+ * https://files.support.epson.com/pdf/lx300p/lx300pu1.pdf
+ */
+$m = chr(EAN13);
+$n = intLowHigh(strlen($content), 2);
+$barcodeCommand = Printer::ESC . "G(" . $m . $n . $content;
+
+/* Send it off as usual */
+$connector = new FilePrintConnector("php://output");
+$printer = new Printer($connector);
+$printer->getPrintConnector()->write($barcodeCommand);
+$printer->cut();
+$printer->close();
+
+/**
+ * Generate two characters for a number: In lower and higher parts, or more parts as needed.
+ *
+ * @param int $input
+ *            Input number
+ * @param int $length
+ *            The number of bytes to output (1 - 4).
+ */
+function intLowHigh($input, $length)
+{
+    $outp = "";
+    for ($i = 0; $i < $length; $i ++) {
+        $outp .= chr($input % 256);
+        $input = (int) ($input / 256);
+    }
+    return $outp;
+}
+?>