Why is my `mysql_fetch_assoc()` function throwing an \'Argument Validation Failure\' error?

Error: mysql_fetch_assoc() Argument Validation Failure

This error occurs when the mysql_fetch_assoc() function is invoked with an invalid MySQL result resource. A valid result resource is obtained from a successful execution of a query using the mysql_query() function.

In the provided code, the query is executed using mysql_query(), and the result is stored in the $result variable. However, the error message indicates that the argument passed to mysql_fetch_assoc() is not a valid MySQL result resource.

Possible Cause and Solution

One possible cause of this error is overwriting the $result variable within the loop. Ensure that the code within the loop does not modify or reassign the $result variable.

If the $result variable is not modified within the loop, consider the following steps:

• Verify the syntax of your SQL query. Ensure that the query is valid and returns the expected result set.
• Check the connection to the MySQL database. Make sure that the connection is established and operational.
• Check the user permissions on the database. Ensure that the user has the necessary privileges to execute the query and retrieve the results.

Additional Notes

• The code uses the deprecated mysql_ functions. It is recommended to use the mysqli_ or PDO functions for database interactions in modern PHP applications.
• The error message also suggests that a possible duplicate question exists. Refer to the linked question for more information and potential solutions.

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