PHP4调用自编COM组件

搞完了PHP4调用JavaBean，又想去试试调用COM，开始以为很难，自己用VB6写了一个Active Dll在PHP4中调用，马上成功，比调用javabean方便多了，下面讲一下我的步骤。
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下载的版本是从http://www.mm4.de/。
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一：用VB6写Activex Dll
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代码如下：
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Option Explicit
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Private MyscriptingContext As scriptingContext
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Private MyApplication As Application
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Private MyRequest As Request Private MyResponse As Response
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Private MyServer As Server
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Private MySession As Session Public
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Sub OnStartPage(PassedscriptingContext As scriptingContext)
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Set MyscriptingContext = PassedscriptingContext
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Set MyApplication = MyscriptingContext.Application
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Set MyRequest = MyscriptingContext.Request
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Set MyResponse = MyscriptingContext.Response
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Set MyServer = MyscriptingContext.Server
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Set MySession = MyscriptingContext.Session
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End Sub
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Public Sub OnEndPage()
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Set MyscriptingContext = Nothing
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Set MyApplication = Nothing
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Set MyRequest = Nothing
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Set MyResponse = Nothing
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Set MyServer = Nothing
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Set MySession = Nothing
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End Sub
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Public Function Test_Number(num) As Variant
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If num <0 Then Get_Number_Attrib = -1
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If num > 0 Then Get_Number_Attrib = 1
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If num = 0 Then Get_Number_Attrib = 0
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End Function
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具体方法如下：新建一个VB6工程，ActiveX Dll将工程命名为P_test,类名为c_test
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类的文件内容如上。
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编译生成p_test.dll文件
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二：注册
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提示符下运行：regsvr32 p_test.dll
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三：编写php文件，test.php4代码如下：
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<?
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$b=new COM("p_test.c_test");
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$a=$b->Test_Number(-454);
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echo $a;
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?>
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运行php4文件将显示-1
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可能遇到的问题是，编译工程时通不过，要将
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Microsoft Active Server Pages Object Library
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引用进来，具体实现“Project->References”找到改库，并勾上
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相比之下，PHP4调用com应该比PHP4调用javabean好哦，因为毕竟是Ms系统嘛。大家也可以去自己编写调用数据库的控件，用PHP4调用，从某种程度上，和PHP调用javabean一样，可以说，实现了“隐藏源代码”。
php爱好者站 http://www.ｐｈｐfans.net dreamweaver|flash|fireworks|photoshop.