Questions and answers for newbies learning PHP (1)

1. Question: Why does "APACHE.EXE: cannot determine local host name." appear?
Answer:

Since the Windows version of Apache does not specify ServerName by default, an error will occur during runtime.

The solution is to modify httpd.conf in the conf directory under the Apache installation directory:
- Search ServerName
- Remove the # sign in front
- Replace the value after ServerName with your own settings, such as localhost
- Save and restart Apache
2. Question: What does the @ in front of the function in the PHP code mean?
Answer:

The function of @ is to ignore the error message generated when calling this function.

The above introduces the questions and answers for beginners to learn PHP (1), including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.