How can special characters like double quotes or single quotes be handled in PHP to avoid syntax errors?

Special characters like double quotes or single quotes can be handled in PHP by using escape characters (\) before the special character. This tells PHP to treat the special character as a literal character rather than a part of the code syntax. For example, to print a string containing double quotes, you can escape the double quotes using (\").

// Example of handling special characters in PHP
$string_with_quotes = "This is a string with \"double quotes\"";
echo $string_with_quotes;