mysql_fetch_array() expects parameter 1 to be resource

It looks like you are trying to use a function from the MySQL extension in PHP, but you are getting an error saying that the first parameter should be a resource.

Watch a course Learn object oriented PHP

This error is usually caused by one of the following issues:

  1. You are trying to use the function on a variable that is not a valid MySQL result resource. Make sure that you have a valid MySQL result resource before calling any of these functions.

  2. You are using an outdated version of PHP. The MySQL extension has been deprecated as of PHP 7.0 and has been removed as of PHP 7.4. If you are using a version of PHP later than 7.0, you should use either the MySQLi extension or PDO instead.

  3. You are trying to use a function that does not exist. Make sure that you are using the correct function name and that you have spelled it correctly.

To fix the problem, you should check your code and make sure that you are using a valid MySQL result resource and that you are using the correct function for the version of PHP that you are using.