Search results for: "empty variables"

What are the best practices for handling form data and variables in PHP to avoid security risks?

When handling form data and variables in PHP, it is important to sanitize and validate user input to prevent security risks such as SQL injection and...

How can you troubleshoot and debug issues related to storing and retrieving variables in $_SESSION in PHP?

When troubleshooting issues related to storing and retrieving variables in $_SESSION in PHP, make sure to start the session using session_start() at t...

What are some best practices for securely handling form input variables in PHP to prevent SQL injection?

To prevent SQL injection in PHP, it is essential to sanitize and validate all form input variables before using them in SQL queries. One best practice...

What are the potential issues with passing variables between PHP pages using radio buttons and form submission?

The potential issue with passing variables between PHP pages using radio buttons and form submission is that the selected value may not be properly ca...

How does the function quote_smart() in the PHP code snippet ensure safe usage of variables in queries?

The function quote_smart() ensures safe usage of variables in queries by escaping special characters that could potentially lead to SQL injection atta...