- To troubleshoot this issue, place a phpinfo page under your website home folder.
- Open the web browser and access the URL http://localhost/phpinfo.php and if you see the 500 Internal Server Error. Follow the below steps.
- Make sure that PHP was configured correctly in IIS.
- Open IIS snap-in and click on the server name.
- Double click on Handler Mappings icon.
- You can see the list of handlers configured in that server. Double click on the PHP handler.
- Make sure that php-cgi.exe was added as executable in IIS (Edit and select "Exicutable") .
- Open the command prompt and go-to PHP binary folder. In this demo, it is C:\program files\php 7.1 folder.
- Type the below command to view the available modules in the PHP.
- If PHP dependencies are installed correctly it will show the list of available modules in PHP or it will show error.
- If it showing "VC_RUNTIME140.DLL (Visual C++) is missing". , then google Visual C++ and go to microsoft website, download latest version .
- Browse the below URL and download the Microsoft Visual C++ 2015 Redistributable Update 3 RC package.
- Click on Download and select vc_redist.x86.exe and click Next.
- Once the download is complete, double-click on the vc_redist.x86.exe file. Accept the License Agreement and click on Install button.
- Once the installation is successful click on close button.
- Verify the PHP modules from the command prompt again. Now you will able to see the list of modules available in PHP.
- Browse the info page again and you will able to see the PHP configuration information. (The page we created at first step )