The fact that it is available open-source is the best feature. 

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Zend PHP Engine is more secure than any other framework, and I usually prefer Zend PHP Engine for big applications.

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Zend Engine is the core of PHP. It makes PHP fast, efficient, and basically, the language of choice for web applications. Most of the Content Management Systems today are based on PHP, making it much easier to maintain and extend them. 

Zend Engine gives the flexibility to use external modules to easily expand the functionalities you need for your web project. It has significantly improved over the different PHP versions, improving memory management, developing a flexible internal build system for PHP, and allowing for an easy interface for external module development.

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The most valuable feature of this solution is the speed at which it compiles and sends the dynamic cache.

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This solution is really easy for me to use.

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I find Zend PHP valuable for a number of reasons. It offers good support for various types of classes, along with many open source libraries that we can readily utilize in our application development process. This gives us a lot of options when it comes to custom development solutions, without having to worry about licensing or other programming-related issues.

On top of that, the support from the community is probably the biggest advantage of using PHP since there is rarely a case when you can't find help from other professionals online.

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Offers a complete environment to develop PHP applications. It is valuable because it allows you to have a complete stack (PHP, MySQL, Zend Server) enabling the building of a development environment, and to deploy to the production system.

Finally, it provides real-time monitoring of the application, which is very useful for tracking the performance as well as the resources that are being used. Having a monitoring console allows you to anticipate problems, when there are many who are consuming resources.

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• Standard Library (StdLib)
• Loader
• Cache classes
• ServiceManager
• Events and EventManager 
• i18n support

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1. It is free and available for download. 2. It makes web design easy and quick and gives well finished websites. 3. It being open source makes it be compatible with many other heterogeneous hardware and software e.g. MYSQL. 4. It supports many back-ends and that is what I want as a developer. View full review »