What are potential pitfalls of using unescaped quotation marks within PHP strings?

Using unescaped quotation marks within PHP strings can lead to syntax errors or unexpected behavior in your code. To avoid this, you can escape the quotation marks by using a backslash (\) before them. This tells PHP to treat the quotation mark as a literal character rather than as a string delimiter.

// Example of using escaped quotation marks within a PHP string
$string = "This is a string with \"escaped\" quotation marks";
echo $string;