Search results for: "variable naming conventions"

What are the best practices for passing arguments by reference in PHP functions to prevent unexpected behavior?

When passing arguments by reference in PHP functions, it's important to be mindful of unexpected behavior that can occur if the original variable is m...

What is the significance of using "global $db;" at the beginning of a PHP function?

When using the "global $db;" statement at the beginning of a PHP function, it allows the function to access a global variable called $db, which likely...

How can PHP be used to control access to specific files based on user authentication within a web application?

To control access to specific files based on user authentication in a web application using PHP, you can check the user's authentication status before...

What potential security risks are associated with using $_SERVER['PHP_SELF'] in a form action attribute?

Using $_SERVER['PHP_SELF'] in a form action attribute can pose a security risk known as Cross-Site Scripting (XSS) attacks. This is because the variab...

How can the user prevent unintentional multiple executions of a function in PHP?

To prevent unintentional multiple executions of a function in PHP, you can use a flag or a lock mechanism to ensure that the function can only be exec...