mamp php mysqli_connect 500

The error "500" in this context usually refers to an Internal Server Error. This error message can occur in a variety of situations, including when there is a problem with the PHP code or with the server configuration.

One possible cause of this error is an issue with the mysqli_connect function. This function is used to establish a connection to a MySQL database, and if it fails to connect, it can result in a 500 error.

To troubleshoot this issue, you can try the following steps:

1. Check your PHP error log for any relevant error messages. This can help you pinpoint the issue.

2. Make sure that the MySQL server is running and that you have the correct login credentials.

3. Verify that the mysqli extension is enabled in your PHP configuration.

4. Check that your firewall is not blocking the connection to the MySQL server.

5. Try using a different database connection method, such as PDO, to see if that resolves the issue.

6. If none of the above steps work, you may need to seek assistance from a web developer or system administrator.