I am currently working on a PHP project and I need some guidance regarding securing email variables in my code.
I am aware that when handling email inputs in PHP, it is important to properly sanitize and validate the user input to prevent any potential security vulnerabilities. However, I am not entirely sure how to go about securing the email variables in my code.
I want to ensure that the email variables I pass in my PHP mail function are secure and don't pose any risks such as header injection or malicious code execution.
What are some best practices or techniques that I can follow to securely handle email variables in PHP? Are there any specific functions or filters that I should be using to sanitize and validate email input? Any examples or code snippets would be greatly appreciated.
Thank you in advance for your assistance!