mysqli_connect: HY000/2002: Permission denied

mysqli_connect(): (HY000/2002): Permission denied

When configuring the PHP development environment under Linux, this error was reported. I started to think that it was a username + password problem, which caused the database to not be successfully logged in. Repeatedly After checking, it was found that it was not a password problem

In the online search results: it was suggested to change the host connected to mysql from: localhost to 127.0.0.1, but I originally set it to: 127.0.0.1

The problem was not solved in other places

So, I boldly tried 127.0.0.1 Changed to localhost

Problem solved, access successful

The principle will be written in detail next time ~

The above introduces mysqli_connect: HY000/2002: Permission denied, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.