function testText() { /* Smoke test over text rendering with each profile. * Just makes sure we can attempt to print 'hello world' and a non-ASCII * char without anything blowing up */ foreach ($this->checklist as $obj) { $connector = new DummyPrintConnector(); $printer = new Printer($connector, $obj); $printer->text("Hello world €\n"); $printer->close(); // Check for character cache $profileName = $obj->getId(); $expected = "Characters-{$profileName}.ser.z"; $filename = __DIR__ . "/../../src/Mike42/Escpos/PrintBuffers/cache/{$expected}"; $this->assertFileExists($filename); } }
<?php /* Change to the correct path if you copy this example! */ require __DIR__ . '/../../autoload.php'; use Mike42\Escpos\Printer; use Mike42\Escpos\PrintConnectors\CupsPrintConnector; try { $connector = new CupsPrintConnector("EPSON_TM-T20"); /* Print a "Hello world" receipt" */ $printer = new Printer($connector); $printer->text("Hello World!\n"); $printer->cut(); /* Close printer */ $printer->close(); } catch (Exception $e) { echo "Couldn't print to this printer: " . $e->getMessage() . "\n"; }