Ejemplos de Mike42\Escpos Printer::feed en PHP

feed() public method

Print and feed line / Print and feed n lines.

public feed ( integer $lines = 1 )
$lines	integer	Number of lines to feed

Ejemplo n.º 1

Archivo: graphics.php Proyecto: mike42/escpos-php

<?php

/* Print-outs using the newer graphics print command */
require __DIR__ . '/../autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\EscposImage;
use Mike42\Escpos\PrintConnectors\FilePrintConnector;
$connector = new FilePrintConnector("php://stdout");
$printer = new Printer($connector);
try {
    $tux = EscposImage::load("resources/tux.png", false);
    $printer->graphics($tux);
    $printer->text("Regular Tux.\n");
    $printer->feed();
    $printer->graphics($tux, Printer::IMG_DOUBLE_WIDTH);
    $printer->text("Wide Tux.\n");
    $printer->feed();
    $printer->graphics($tux, Printer::IMG_DOUBLE_HEIGHT);
    $printer->text("Tall Tux.\n");
    $printer->feed();
    $printer->graphics($tux, Printer::IMG_DOUBLE_WIDTH | Printer::IMG_DOUBLE_HEIGHT);
    $printer->text("Large Tux in correct proportion.\n");
    $printer->cut();
} catch (Exception $e) {
    /* Images not supported on your PHP, or image file not found */
    $printer->text($e->getMessage() . "\n");
}
$printer->close();

Ejemplo n.º 2

Archivo: receipt.php Proyecto: jslemmer/cafe

// Select customer and order info
$sql_orders = "select Order_id,o.cus_id,firstname as fname,lastname as lname,Date,Time,payed from orders as o LEFT JOIN customer_info as c ON o.cus_id = c.cus_id WHERE Order_id = {$id}";
$result = $mysql->query($sql_orders);
$row_order = $mysql->fetch($result);
if (empty($row_order['lname']) && empty($row_order['fname'])) {
    $cusname = 'Unknown';
} else {
    $cusname = $row_order['fname'] . " " . $row_order['lname'];
}
/* Print customer and order ID */
$printer->setJustification(Printer::JUSTIFY_CENTER);
$printer->selectPrintMode(Printer::MODE_DOUBLE_WIDTH);
$printer->text("{$cusname}\n");
$printer->selectPrintMode();
$printer->text("Order# {$id}\n");
$printer->feed(2);
// Select ordered items
$sql_item_detail = "SELECT Item_id,F.order_id,cus.lastname as lname,Cs.cata_name as Food_name,Cp.Cata_name,Quantity,Cs.price as Single_Price,(Cs.price*quantity)as Total_Price,F.food_id from order_food as F JOIN orders as O on F.order_id = O.order_id JOIN food_catalogue as Cs ON F.food_id = Cs.food_id JOIN food_catalogue as Cp ON Cp.food_id = Cs.catalog_id LEFT JOIN customer_info as cus ON cus.cus_id = O.cus_id WHERE F.order_id= {$id}";
$result_item_detail = $mysql->query($sql_item_detail);
$sum = '';
while ($row_item_detail = $mysql->fetch($result_item_detail)) {
    $food_name = $row_item_detail['Food_name'];
    $qualtity = $row_item_detail['Quantity'];
    $total = $row_item_detail['Total_Price'];
    $sum = $sum + $total;
    $printer->text("{$food_name} ({$qualtity}) - {$total} RMB\n");
}
$printer->feed(2);
$printer->selectPrintMode(Printer::MODE_DOUBLE_WIDTH);
$printer->text("{$sum} RMB");
$printer->selectPrintMode();

Ejemplo n.º 3

Archivo: 123-code128-barcode.php Proyecto: mike42/escpos-php

<?php

require __DIR__ . '/../../autoload.php';
use Mike42\Escpos\Printer;
use Mike42\Escpos\PrintConnectors\FilePrintConnector;
$a = "{A012323392982";
$b = "{B012323392982";
$c = "{C" . chr(01) . chr(23) . chr(23) . chr(39) . chr(29) . chr(82);
$connector = new FilePrintConnector("php://stdout");
$printer = new Printer($connector);
$printer->setJustification(Printer::JUSTIFY_CENTER);
$printer->setBarcodeHeight(48);
$printer->setBarcodeTextPosition(Printer::BARCODE_TEXT_BELOW);
foreach (array($a, $b, $c) as $item) {
    $printer->barcode($item, Printer::BARCODE_CODE128);
    $printer->feed(1);
}
$printer->cut();
$printer->close();