This is the most common reason for installation failure. The DLL must match your PHP installation exactly across four criteria: (e.g., 5.3, 5.4, 5.6). Architecture: x86 (32-bit) vs. x64 (64-bit). Thread Safety: Thread Safe (TS) vs. Non-Thread Safe (NTS). Compiler: (e.g., VC11, VC14).
Copy the php_printer.dll file into your PHP ext directory (e.g., C:\php\ext ). php_printer.dll Download
Restart Apache or Nginx for the changes to take effect. 4. Modern Alternatives This is the most common reason for installation failure