How can PHP developers ensure the security of sensitive data when posting code snippets online for help?

PHP developers can ensure the security of sensitive data when posting code snippets online by avoiding hardcoding sensitive information directly into the code. Instead, they should use environment variables or configuration files to store sensitive data, and ensure that these files are not publicly accessible. Additionally, developers should be cautious about sharing code snippets that contain sensitive information and should always review and sanitize their code before posting it online.

// Example of storing sensitive data in a configuration file
$config = parse_ini_file('config.ini');
$username = $config['username'];
$password = $config['password'];