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PHP application servers are used for running and managing PHP applications.
Zend Server, built by Zend Technologies, provides application server functionality for PHP-based applications. Other software offerings are sometimes self-described as application servers such as Appaserver and Spring Framework.
The Barracuda Web/Application server is an embeddable "C" library designed to be embedded in other computer programs. Server side web applications are designed in the Lua scripting language.
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