Why Does My PHP Code Throw 'mysqli_connect(): (HY000/2002): No Such File or Directory'?

Resolving "mysqli_connect(): (HY000/2002): No such file or directory" Error

When attempting to connect to a MySQL database with mysqli_connect(), users may encounter the error "mysqli_connect(): (HY000/2002): No such file or directory." This error is typically caused by an incorrect host name in the mysqli_connect() function.

In the provided case, the user created a database and user using the MySQL command line, and then attempted to connect to the database using the mysqli_connect() function, specifying "localhost" as the host. However, the error occurred because "localhost" may not have been the correct host name.

The solution to this issue is to replace "localhost" with the IP address of the MySQL server in the mysqli_connect() function. Typically, the IP address is 127.0.0.1, which represents the local machine. By using the IP address, the mysqli_connect() function can successfully connect to the database.

Therefore, to resolve the "No such file or directory" error, modify the mysqli_connect() function to the following:

$con=mysqli_connect("127.0.0.1","vanilla_user3","vanilla_password","vanilla");

In general, it is recommended to use the IP address of the MySQL server instead of "localhost" to avoid potential host name issues.

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