SynWeb is an advanced highlighter for (Uni)SynEdit for PHP, (X)HTML, WML, CSS, JS. It has much more features than TSynMultiSyn and works about 2-10 times faster. Included also SynTokenMatch - inteligment brace/token matching, html tags, begin->end, etc.)
Some SynWeb features:
support for embedded: PHP, CSS, JS in XHTML/HTML PHP in CSS (.css), JS (.js), WML support for ANSI and Unicode version of SynEdit faster about 2-10 times than using TSynMultiSyn full validation for tags (also checks for valid '/>' or '/') and its attributes for HTML across difference versions (for XHTML - case sensitive) values in tags without quotation are also highlighted as ValueAttrib (only in HTML, in XHTML is highlighted as error because, XHTML doesn't allow for unquoted values) support for WML 1.1/1.2/1.3 in CSS validation for tags (you can set also HTML version) validation for special entity characters (eg. &, ©) almost FULL validation for CSS across CSS1 and CSS2.1 support for as start tag for PHP (also in demo app) parsed source code of php to get built-in function names (for php4 and php5+PECL) any many more.