Search results for: "empty result sets"

What are best practices for handling database queries and result sets in PHP to avoid errors like empty variables or failed executions?

When handling database queries and result sets in PHP, it is important to check for errors and handle empty variables or failed executions properly to...

Can you provide an example of how to check for empty result sets in PHP using mysql_fetch_array and display a custom message?

When retrieving data from a MySQL database using `mysql_fetch_array`, it is important to check if the result set is empty before trying to access any...

Are there any specific functions or methods in PHP that can help detect empty result sets from MySQL queries?

When executing MySQL queries in PHP, it is important to check if the result set is empty before attempting to fetch any data from it. This can be done...

What are the best practices for checking if a result set is empty before iterating through it in PHP?

When working with result sets in PHP, it is important to check if the result set is empty before attempting to iterate through it to avoid errors. One...

How can a PHP developer handle multiple result sets when querying a database?

When querying a database in PHP, a developer can handle multiple result sets by using the `mysqli_multi_query()` function to execute multiple queries...