Search results for: "resource"

How can error handling be improved when executing SQL queries in PHP to avoid issues like "Resource id #3"?

When executing SQL queries in PHP, the issue of "Resource id #3" typically occurs when trying to directly output the result of a query resource. To av...

What are common reasons for getting a "supplied argument is not a valid MySQL result resource" error in PHP?

The "supplied argument is not a valid MySQL result resource" error in PHP typically occurs when a query fails to return a valid result resource. This...

What are common reasons for the error message "Warning: mysql_close(): no MySQL-Link resource supplied" in PHP?

The error message "Warning: mysql_close(): no MySQL-Link resource supplied" typically occurs when attempting to close a MySQL connection without provi...

How can PHP be used to track user activity and calculate resource updates based on their online status?

To track user activity and calculate resource updates based on their online status, you can use PHP to create a session management system that records...

How can the "supplied argument is not a valid MySQL result resource" error be resolved in PHP scripts?

The "supplied argument is not a valid MySQL result resource" error occurs when trying to use a MySQL result resource that is not valid, typically due...