Who installs more than one Apache server on a window??

Due to the recent work encountered some very old PHP (php5.3.x) built web platform, and my Computer installed (self-built server environment, not using the integrated environment) PHP version is very high (php5.6.x).

Result in a run on my computer, on various error tips!!

As long as the version is reduced, there will be no error.

However, when the version was lowered, it was found that the speed of the operation was also significantly reduced (the site's response rate decreased too much).

It's a bit of a loss (it's greatly reduced my productivity).

So, I suddenly thought: If you install multiple Apache servers on my computer, each server integrates different versions of PHP, if you encounter the old version of the old version of Apache, if the new version of the use of the new version, if the personal use of the new version.

That's perfect, isn't it??

I have used multiple servers on my computer, but there are a variety of problems when actually running, such as:
Apache will have SSL problems, various path problems virtual host invalid Ah what??
PHP will appear clearly opened the Mb_string module (also set the module path: extension_dir), can not load this module (the other modules are the same)

Use the PHP default settings (and cannot be set at all) unless you simply use the single network directory under/apache/htdoc/.

Do not know which way the great God has such ideas and really to practice, so far on the Windows computer is still hung on many Apache??

