SourceGuardian for PHP is the ultimate protection solution for your PHP scripts.

Main feature list:
+Full Bytecode Encryption - protect your files by removing the original PHP Source Code
+Fully encode and deploy for PHP5 (and PHP4)
+Choice of Windows/Linux/Mac OS X encoding clients
+Command line encoder available now
+Encrypt to domain name
+Encrypt to IP
+License generator for encoded scripts
+Easy to use Wizard interface and Advanced mode in GUI
+Automatic backup of source files
+Deployment options
+Lock to domain names, IP addresses or LAN hardware
+Timeout your scripts at specific dates or days in the future
+Encoded files run under Linux, FreeBSD, Windows, Mac OS X, Solaris, HP-UX
+Require no changes to the standard web server installation
+Free minor updates
+Technical support

SourceGuardian for PHP is the most comprehesive and user-friendly protection solution on the market. A free 7-day trial is available