If you are adding PHP 5.6 to an existing WampServer 3.x installation:
: You can download older versions like WampServer 2.5 , which came pre-packaged with PHP 5.6.15. These are available in the older versions section on SourceForge . Critical Prerequisite: Visual C++ Redistributables wamp server php 5.6 download
To get PHP 5.6 running on WampServer, you can either download an older full installer or add it as an "addon" to a newer version. Apache, PHP, MySQL on Windows - WampServer If you are adding PHP 5
If you are adding PHP 5.6 to an existing WampServer 3.x installation:
: You can download older versions like WampServer 2.5 , which came pre-packaged with PHP 5.6.15. These are available in the older versions section on SourceForge . Critical Prerequisite: Visual C++ Redistributables
To get PHP 5.6 running on WampServer, you can either download an older full installer or add it as an "addon" to a newer version. Apache, PHP, MySQL on Windows - WampServer