功能特性如下：
Extends the .NET language family with PHP version 5
* PHP code compiled into MSIL (Microsoft Intermediate Language) byte-code and metadata
* compiled functions, classes and interfaces can be used from other .NET languages (like C#)
* type inheritance preserved – each PHP class or interface declaration corresponds to one CLI type
* PHP code can call methods declared in the Phalanger's Class Library (methods annotated by certain metadata are visible to PHP code)
* classes defined in Phalanger's Class Library which inherits from common supertype (PhpObject) can be instantiated and inherited from PHP code
* the Class Library can be extended by user code written in any .NET language provided some requirements are fulfilled
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