Why Does mysqli_connect Throw a 'No Such File or Directory' Error Even When Using 'localhost'?

mysqli_connect Error: No Such File or Directory

When attempting to connect to a MySQL database using mysqli_connect, you may encounter the error "(HY000/2002): No such file or directory." This issue often arises due to an incorrect host configuration.

In the provided example, the code attempts to connect to "localhost" as the host. However, the solution reveals that the issue was resolved by using the IP address "127.0.0.1" instead.

While "localhost" and "127.0.0.1" are often considered equivalent, they may behave differently in specific contexts, such as within PHP scripts. To ensure stable connections, it's recommended to explicitly specify the IP address "127.0.0.1" as the host when connecting to a database on the same server.

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