This function may also return NULL on failure, instead of FALSE.
(PECL printer SVN)
printer_open — Apre la connessione ad una stampante
Questa funzione tenta di aprire una connessione con la stampante
NomePeriferica, e restituisce un handle se ha successo
FALSE se fallisce.
Se non vengono passati parametri, la funzione tenta di aprire una connessione con la stampante di default (se non viene specificata in php.ini come printer.default_printer, il PHP tenta di determinarla).
Inoltre printer_open() attiva un device context.
Example #1 Esempio di utilizzo di printer_open()
$handle = printer_open("HP Deskjet 930c");
$handle = printer_open();
If you cannot print on a client shared printer, you may create a admin user account, and assign it to run Apache under Windows Service.
I had been playing around with trying to get PHP to print to a network server off and on for quite some time, and I finally came across somebody who had the piece of the puzzle I've been missing.
Like I said, the printer I've been trying to print to is a network printer, so I had been trying to open the printer as follows:
<?php printer_open("\\\\servername\\printername"); ?>
What I had been missing is that the function needed the internet host name of the server, which includes the domain name. So, let's say my print server was called "PServer" and my network's domain was called php.net:
<?php printer_open("\\\\Pserver.php.net\\printername"); ?>
This will more than likely work, then you can open and print a file as follows:
$printer = "\\\\Pserver.php.net\\printername");
if($ph = printer_open($printer))
// Get file contents
$fh = fopen("filename.ext", "rb");
$content = fread($fh, filesize("filename.ext"));
// Set print mode to RAW and send PDF to printer
printer_set_option($ph, PRINTER_MODE, "RAW");
else "Couldn't connect...";
If you are desperate to do server-side printing with PHP on a *nix machine then you can always use the fsockopen() function and send a pre-build PJL (Printer Job Language) string directly to the printer. As long as your printer supports PJL then there should be no problem. Just also bare in mind that unless you are doing something very special, like sending the print job to a remote printer and not the printer the client is at you should just make a report page generated by php and apply a css stylesheet which makes the page styled for printing.
Revision: Single quotes DO work, but with a triple slash, like
Connecting to Network Printers
$handle = printer_open("\\\\DOMAIN_NAME\\Printer_Name");
Similiar to how you would locate a domain on your network
you need to have 2 prefix slashes. But as reminder
you need to escape it. So really you need 4 slashes. It
worked me. Hopefully this helps who is having problems
connecting to network printer.
As stated on the index page for all the printer functions, these are supported under Win32 *only*...in fact, they're frontends API calls. I'd go ahead and say that they would probably never be ported to *nix because of the many various ways of handling printers. Windows, for all its faults, at least has a unified printing system.
As to editing the php.ini, try it with no path at all, like the first example here