Solution to php7 prompting 500 error: 1. Find the three-in-one installation package of Visual Studio 2015, 2017 and 2019; 2. Select according to the version of your system, download and install it.
The operating environment of this article: windows7 system, PHP7.4 version, DELL G3 computer
php7 How to solve the 500 error message?
Causes and solutions for 500 errors after upgrading PHP 7.4.5 from earlier versions
PHP has now been updated to version 7.4 or above, and if you are using an older PHP version If you upgrade to PHP 7.4 or above, a 500 error will occur. If it is an error in the text, the solution is very simple.
The following are the problems and solutions I encountered during the upgrade process:
I just checked the official website of PHP and suddenly found that PHP has been updated to PHP 7.4.5 (the latest is already 7.4.10), so I downloaded it and prepared to update it. After setting up the PHP.ini file, I directly replaced it in the production environment (well, because it is a personal website, it doesn’t matter. If it is a major project, it is still Test it and then update it).
The result is that the PHP page opens, prompting a 500 error.
Then I checked the detailed error and it showed:
php-cgi.exe - FastCGI 进程意外退出
I used the command line to run php -v in the PHP directory, and the prompt was:
PHP Warning: ‘vcruntime140.dll’ 14.0 is not compatible with this PHP build linked with 14.16 in Unknown on line 0
Because PHP needs the support of VC , but the previous PHP version can be used. Then I discovered that the PHP official website stated that PHP 7.4 (including PHP7.4.5) was built using Visual Studio 2019. That is to say, VC16 is used, and the previous version was VC15, so naturally it cannot be used.
Find the latest three-in-one installation package for Visual Studio 2015, 2017 and 2019 online:
https://support.microsoft.com/zh-cn/help/2977003/the-latest-supported-visual-c-downloads
Select according to the version of your system, download and install. Among them, x86 is 32-bit and x64 is 64-bit.
The problem is solved.
Recommended learning: "PHP Video Tutorial"
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