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Parse the difference between VC6 X86 and VC9 X86 in PHP and the meaning of Non Thread safe

Source: Internet
Author: User
Tags php and php download thread vc9
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PHP now launches version 5.3.0, but there are several different versions to download. That's VC6 X86 and VC9 X86.
First I will answer:

What is VC6?
VC6 is Legacy Visual Studio 6 compiler, which is compiled using this compiler.

What is VC9?
VC9 is the Visual Studio 2008 compiler, which is compiled with the Microsoft vs Editor.
So how do we choose which version of PHP to download?
If you are using apache+php under Windows, please select the VC6 version;
If you are using iis+php under Windows, please select the VC9 version;

So what's non Thread safe?
Non thread safe is not threaded;

What is Thread Safe?
thread safe is threaded;
The authorities do not recommend that you apply non thread safe to the production environment, so we chose the PHP version of the thread safe to use.
PHP download page: http://windows.php.net/download/

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