Why Does mysqli_connect() Show 'No such file or directory' and How Can I Fix It?

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

When attempting to establish a connection to a MySQL database using PHP's mysqli_connect() function, you may encounter the "No such file or directory" error. This error message can be misleading, as it suggests a file system issue when the root cause is often related to the database host specification.

To resolve this issue, it's recommended to replace the "localhost" host parameter with the appropriate IP address. In this case, the solution involved replacing "localhost" with "127.0.0.1".

Here's why this change is necessary:

"localhost" is an alias that typically points to the machine's own IP address (127.0.0.1). However, in some configurations, this alias may not be set up correctly, leading to connection issues. Using the IP address ensures a direct connection to the local database server.

Updated code:

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

By specifying the IP address as the host, you can resolve the "No such file or directory" error and successfully connect to the database. Remember that in cases of connection issues, it's always advisable to double-check the host name or IP address you're using.

The above is the detailed content of Why Does mysqli_connect() Show 'No such file or directory' and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!