I have already wamp under Windows 7 with php 5.3.8. I would like to install php5.3.19 and php.5.4.9 I have googled it and only instructions I found was this article
I tried those instructions and it didn't work for me. I see the extra versions when right clicking on the taskbar wamp icon but after that what ever I select php5.3.8 is running.
I have a phpinfo() script so to make sure.
Any instructions on how to do this? I don't want to uninstall php 5.3.8 as its my server's version.
Yes this process is rather easy. Go to their downloads section of WampServer homepage. There you will see an Addons section, click the "Download PHP Addons" button. Select the versions you would like to download and run the installer.
Updated (8/5/14): Now they have it in their Sourceforge project under WampServer 2 - Extensions/PHP/ Here: http://sourceforge.net/projects/wampserver/files/WampServer%202%20-%20Extensions/PHP/
来源：https://stackoverflow.com/questions/13634364/multiple-php-versions-in-wamp-under-windows-7