Zend Guard, formerly known as Zend Encoder, protects your commercial PHP 4 and PHP 5 applications from reverse engineering, unauthorized customization, unlicensed use and redistribution.
Software vendors are increasingly writing applications in PHP with the aim of distributing them via download or CD. It is critical that the source code and intellectual property of the applications being distributed is secure, regardless of whether the applications are free, for evaluation purposes or for commercial sale.
The Zend Guard, with its key components of Encoding, Obfuscating and Licensing, make this distribution worry free.
Zend Guard, likes its predecessor Zend Encoder, allows Independent Software Vendors (ISVs) and IT managers to safely and confidently distribute and manage the deployment of their PHP applications while protecting their source code.
Zend Guard not only encodes the source code of your application, but also increases source code protection through obfuscation of the various application name components.
Zend Guard is the only product that obfuscates object oriented programs created with PHP 4 and PHP 5.
What's new in version 5.5
Version 5.5 includes improved compatibility with Zend Optimizer 2.6;
Improved 'mb_string' extension support;
Added support for encoding files without a file extension;
Improved support for with non-English characters;
Bug fix - Variables with same name and different case became confused;
Bug fix in some cases using strong obfuscation caused crashes;
GUI - Added an option to close open projects;
GUI - Bug fix - the "ignore pattern" (CVS) option did not work.