printing over network from PHP app

问题:

I have a set of printers connect over a network with Static IP assigned to each printer.

Now i have a PHP web application running on a linux server which needs to send print jobs, to these printer over the network.

Is this possible using lpr or cups and how do i go about it.

回答1:

You could use the LPR Printer class from here:

http://www.phpclasses.org/package/2540-PHP-Abstraction-for-printing-documents.html

Example:

<?php 
include("PrintSend.php");
include("PrintSendLPR.php");

$lpr = new PrintSendLPR(); 
$lpr->setHost("10.0.0.17"); //Put your printer IP here 
$lpr->setData("C:\\wampp2\\htdocs\\print\\test.txt"); //Path to file, OR string to print. 

$lpr->printJob("someQueue"); //If your printer has a built-in printserver, it might just accept anything as a queue name.
?>

回答2:

This question has been asked before. See print to a network printer using PHP

The answer given that time was exec("lpr -P 'printer' -r 'filename.txt');

However, the answer was never accepted so not sure whether the OP found it helpful; it certainly looks like it ought to do the trick, but it's not quite a direct and easy method of doing it from within PHP.

A number of other resources I found were also recommending variations on this approach.

Digging a bit deeper, I see PHP has got a Printer module in PECL. However it's only for Windows, and looks like it's not well maintained. But in case it helps, the link it here: http://www.php.net/manual/en/intro.printer.php

I think the answer ultimately is that PHP isn't really designed for this kind of thing, and doesn't have built-in functionality to do it. But since you can shell out to external commands using exec() and similar, it shouldn't be too hard to get it working, albeit not quite ideal.

回答3:

Try PHP::PRINT::IPP

It worked perfectly for me.

Basic Usage

 <?php
  require_once(PrintIPP.php);

  $ipp = new PrintIPP();                        
  $ipp->setHost("localhost");
  $ipp->setPrinterURI("/printers/epson");
  $ipp->setData("./testfiles/test-utf8.txt"); // Path to file.
  $ipp->printJob();                                                          
?>

Reference

回答4:

i was also doing research on this...and i think the below written code can help you in handling printer in linux

<?php
$printer = "\\\\Pserver.php.net\\printername");
if($ph = printer_open($printer))
{
   // Get file contents
   $fh = fopen("filename.ext", "rb");
   $content = fread($fh, filesize("filename.ext"));
   fclose($fh);

   // Set print mode to RAW and send PDF to printer
   printer_set_option($ph, PRINTER_MODE, "RAW");
   printer_write($ph, $content);
   printer_close($ph);
}
else "Couldn't connect...";
?>