disabling the register_globals option in PHP can improve performance. When register_globals is enabled, all variables from the HTTP request are automatically registered as global variables. This can add overhead to PHP applications, as the PHP interpreter has to check whether a variable exists in the global scope before it can be accessed.
Disabling register_globals forces developers to explicitly declare all global variables. This can improve performance by reducing the overhead of registering and deregistering global variables. Additionally, disabling register_globals can help to improve the security of PHP applications by making it more difficult for attackers to exploit vulnerabilities.
Here are some additional benefits of disabling register_globals:
- Reduced memory usage: Registering global variables can increase the memory usage of PHP applications.
- Easier debugging: Disabling register_globals can make it easier to debug PHP applications, as developers will be able to see which variables are actually global.
- Improved compatibility: Disabling register_globals is compatible with newer versions of PHP and other web frameworks.
If you are using an older PHP application that relies on register_globals, you should consider migrating your application to a newer version of PHP and disabling register_globals. This will improve the performance, security, and maintainability of your application.
Go to php.ini and put below code
After making the changes, save the file and restart your web server (Apache) for the changes to take effect.
Disabling register_globals is a good security practice, as it can help to prevent attackers from exploiting vulnerabilities. It is also a good performance practice, as it can reduce the overhead of registering and deregistering global variables.