Are there any best practices for avoiding hidden characters in PHP code?

Hidden characters in PHP code can cause unexpected errors or behavior in your application. To avoid this issue, it is recommended to always use a text editor that displays non-printable characters or to run a script that removes hidden characters from your code. Example PHP code snippet to remove hidden characters:

$clean_code = preg_replace('/[[:^print:]]/', '', $your_php_code);
echo $clean_code;