How to print using php without adding php_printer.dll

I have to print using php without getting print dialog.

I tried using printer_list in php. I installed printer dll. But it still shows error. How to fix this problem. I am using php 7

$getprt=printer_list( PRINTER_ENUM_LOCAL | PRINTER_ENUM_SHARED ); 
$handle = printer_open(getprt['NAME']); 
if($handle) echo "connected"; 
else echo "not connected"; 
printer_start_doc($handle, "My Document"); 
printer_start_page($handle); 
printer_write($handle,"Test Print."); 
printer_end_page($handle); 
printer_end_doc($handle); 
printer_close($handle); 

Getting following error

Call to undefined function printer_list()