von der PHP-seite:
ZitatVC9 and VC11More recent versions of PHP are built with VC9 or VC11 (Visual Studio 2008 and 2012 compiler respectively) and include improvements in performance and stability.
The VC9 builds require you to have the Visual C++ Redistributable for Visual Studio 2008 SP1 x86 orx64 installed.
The VC11 builds require to have the Visual C++ Redistributable for Visual Studio 2012 x86 or x64installed.
auf der Seite von http://windows.php.net/download/ findest du die links