How can developers effectively debug issues related to escape sequences in PHP?

To effectively debug issues related to escape sequences in PHP, developers can use the `addslashes()` function to properly escape characters that may cause problems in strings. This function adds a backslash before characters like single quotes, double quotes, and backslashes, ensuring they are treated as literal characters in the string.

$string = "This is a string with 'single quotes' and \"double quotes\"";
$escaped_string = addslashes($string);
echo $escaped_string;