how to pos print directly press button

[farukweb]

I am making a pos(point of sale) application using object oriented php.

I have found thermal receipt printers support ESC/POS .

i want that when i will press button to print directly , it will do automatically. 

anyone can help me please.

Thanks in advance. 

[ginerjm]

What kind of a button?  A physical one that is connected to your device?  Or an HTML submit button?  What have you tried in code so far?

 

Help us to help you.  We will if you have a question about code!

[farukweb]

6 hours ago, ginerjm said:

What kind of a button?  A physical one that is connected to your device?  Or an HTML submit button?  What have you tried in code so far?

 

Help us to help you.  We will if you have a question about code!

this is html submit button. 

when i will submit form, it will hit pos printer directly .

[ginerjm]

Are you running PHP on your local machine or on a remote server?

[farukweb]

I am running on local machine now. later i will move to live server.

can you understand my issues?

 

[ginerjm]

HOw is this printer device connected so that your server will be able to talk to it?

[farukweb]

I can print easily from my pc connected with usb pos machine.I have installed driver , so that it works fine. 

EscPos.php

try {
    // Enter the device file for your USB printer here
    // You can check the tutorial here: https://mike42.me/blog/2015-03-getting-a-usb-receipt-printer-working-on-linux
    $connector = new FilePrintConnector("/dev/usb/lp0");
    /* 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";
}

myform.php 

when i submitted a form data , it is redirecting escpos.php for printing and it prints. 

but i don't want like that. 

I want when i will submit form, it will be print directly current page  without redirecting to escpos.php. 

 

 

[gizmola]

Just move the printer code to your myform.php, assuming that is the target of the form post.