x
<html><body>$str = "<h1>Hello World!</h1>";$newstr = filter_var($str, FILTER_SANITIZE_STRING);echo $newstr;</body></html>
Hello World!
<html><body>$str = "<h1>Hello World!</h1>";$newstr = filter_var($str, FILTER_SANITIZE_STRING);echo $newstr;</body></html>