What does php vc15 mean?

php vc15 means that this version of PHP is compiled with Visual Studio 2017, which means that when users download the VC15 version of PHP, they need to install "VisualC RedistributableforVisualStudio2017" first.

The operating environment of this article: Windows7 system, PHP7.1, Dell G3.

php What does vc15 mean?

php vc15 means that this version of PHP is compiled with Visual Studio 2017, which means that when users download the VC15 version of PHP, they need to install "VisualC RedistributableforVisualStudio2017" first.

One: Let’s look at the relationship first

The relationship between vs release version and vc version is as follows:

Visual Studio 6 ： vc6
Visual Studio 2003 ： vc7
Visual Studio 2005 ： vc8
Visual Studio 2008 ： vc9
Visual Studio 2010 ： vc10
Visual Studio 2012 ： vc11
Visual Studio 2013 ： vc12
Visual Studio 2015 ： vc14
Visual Studio 2017 ： vc15

Two: Scenario, I am upgrading php7.2 in wampserver The vc15 version used in the above version is the php7.1.30 version used for laravel development before. I upgraded from php5.6.25 version to php7.1.30 very smoothly. This time I upgraded, I struggled with php7.2.25 for a long time, and wampserver could not be started. , at first I suspected that I downloaded the wrong php version, and then downloaded php7.3.12. The result was still the same, it couldn’t be started, so I observed. (See my article for the upgrade steps)

Three: Through various attempts and data analysis and integration, it is very likely that my system does not support it. It is still unclear which one it is. So I used Google to find a similar case. He It was through upgrading apache

#Finally, I got my code to run. The cases are similar but the solutions may not necessarily be the same. Specific problems must be analyzed in detail and tried many times.

Recommended learning: "PHP Video Tutorial"

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