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The VC15 and VS16 builds require to have the Visual C++ Redistributable for Visual Studio 2015-2019 圆4 or x86 installed TS and NTS Include improvements in performance and stability. More recent versions of PHP are built with VC15 or VS16 (Visual Studio 2017 or 2019 compiler respectively) and With Apache, using the apache2handler SAPI, you have to use the Thread Safe (TS) versions of PHP. We use their binaries to build the Apache SAPIs. They provide VC15 and VS16 builds of Apache for x86 and 圆4. Please use the Apache builds provided by Apache Lounge.
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If you are using PHP as FastCGI with IIS you should use the Non-Thread Safe (NTS) versions of PHP.
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