PHP could not connect to MySQL over 'localhost'

[Jan1]

Hello,

I have a problem with connection to MySQL database over PHP.
If I define host address '127.0.0.1' works well. Problem occurs if host address is 'localhost'.
How to allow both 'localhost' and '127.0.0.1'?

Thanks for help.

 

[IgorG]

Not sure how your question related to Plesk. It is usual administrative task.
Anyway make sure that you have the following entry in /etc/hosts:

127.0.0.1 localhost

Check allowed hostnames in mysq database.