PHP to print to a server side printer - php

Question

I am trying to use PHP to print to a server side printer. I have found similar example code that mostly all use the same API’s functions in order to do this task. When I ran it on my server to test the code it was saying “PHP Fatal error: Call to undefined function printer_open()”. So I found at least three different versions of the php_printer.DLL’s for this printer function and tried them all separately . I did some more research and looking into the apache server error log found this warning
PHP Warning: PHP Startup: Unable to load dynamic library 'ext\php_printer.dll' - The specified module could not be found.\r\n in Unknown on line 0
From this found some Bing search results that said that the reason it is not loading when apache starts up is because it is depend on other libraries. If this is true I have not as yet been able to find which library DLL’s these are and where to get them. This is what I need help with first to basically know if it is not depended then why is the PHP warning being thrown or what library’s do I need.
Thanks for any help
zac
I am running a wampserver2.2
Apache 2.4.2
PHP 5.4.3
OS : windows 7 64 bit
Added to the php.ini file
extension=php_printer.dll
and no errors in the php log
also I did restarted the server each time I change the php.ini file or when I put a new DLL in the *ext* directory
I even put the path to the wamp DLL’s “...\ext\” in the environment variables for windows, as a shot in the dark .
Example code
<?php
/* get the sample text */
$lipsum = "test print";//file_get_contents('lipsum.txt');
phpinfo();
/* open a connection to the printer */
$printer = printer_open("Microsoft XPS Document Writer");
/* write the text to the print job */
printer_write($printer, $lipsum);
/* close the connection */
printer_close($printer);
?>
3/19/2015 edited
I found this site along with a slightly different error message from the php error log.
basically the below link said the error happened because the PHP_printer.dll is complied with a different visual studio c++ version and therefore need to be recompiled. it gives the steps for the most part I still am tring to get it to work
https://community.apachefriends.org/f/viewtopic.php?t=53348&p=204590
Php error:
[18-Mar-2015 22:55:56 UTC] PHP Warning: PHP Startup: printer: Unable
to initialize module Module compiled with module API=20121212 PHP
compiled with module API=20100525 These options need to match in
Unknown on line 0

Answer 1

In case you couldn't found a solution yet....
First of all check in phpinfo() that in the version of wmap server you are using thread safety is enabled or not. Just ctrl+F in the phpinfo() for "thread safety".
Probably thread safety is enabled in the version you are using. Then you have to download the ts(thread safe) version of the php_printer.dll which you can find here....
http://windows.php.net/downloads/pecl/snaps/printer/0.1.0-dev/
download specific file according to your system requirement (OS and others) and copy it in the extension directory of the wamp. Then just enable the extension in the php.ini file like
extension=php_printer.dll
just add this line in the ini file if already not there and there will be no ; at the beginning.
Hope it helps ...