Add class declaration face

Fix php class declaration regex and inherit

Author: Demis Balbach

php-face.el

@@ -201,6 +201,11 @@
   :group 'php-faces
   :tag "PHPDoc Class Name")
 
+(defface php-class-declaration '((t (:inherit php-keyword)))
+  "Face used to class declarations."
+  :group 'php-faces
+  :tag "PHP Class Declaration")
+
 (define-obsolete-face-alias 'php-annotations-annotation-face 'php-doc-annotation-tag "1.19.0")
 
 (provide 'php-face)

php-mode.el

@@ -1494,6 +1494,9 @@ a completion list."
    ;;  only add patterns here if you want to prevent cc-mode from applying
    ;;  a different face.
    `(
+     ;; Class declaration keywords (class, trait, interface)
+     ("class\\|trait\\|interface" . 'php-class-declaration)
+     
      ;; Highlight variables, e.g. 'var' in '$var' and '$obj->var', but
      ;; not in $obj->var()
      ("\\(->\\)\\(\\sw+\\)\\s-*(" (1 'php-object-op) (2 'php-method-call))