Added support for PHP + HTML combined with the help of mmm-mode

Note: remember that working with PHP and combined HTML isn't a best practice

lisp/init-mmm-mode.el

@@ -0,0 +1,16 @@
+(use-package mmm-mode
+
+  :config
+
+  (setq mmm-global-mode 'maybe)
+  (mmm-add-mode-ext-class nil "\\.php?\\'" 'html-php)
+  (mmm-add-mode-ext-class nil "\\.ctp?\\'" 'html-php)
+  (set-face-background 'mmm-default-submode-face nil)
+  (mmm-add-classes
+   '((html-php
+      :submode php-mode
+      :front "<\\?\\(php\\)?"
+      :back "\\?>")))
+  )
+
+(provide 'init-mmm-mode)

lisp/init-php.el

@@ -1,10 +1,8 @@
 (use-package ac-php)
 
 (use-package php-mode
-  :mode (("\\.php$" . php-mode)
-         ("\\.inc$" . php-mode))
   :config
-  (add-hook 'php-mode-hook
+  (add-hook 'mmm-mode-hook
             '(lambda ()
                (auto-complete-mode t)
                (require 'ac-php)

lisp/init-web-mode.el

@@ -3,7 +3,9 @@
          ("\\.djhtml\\'" . web-mode)
          ("\\.tpl\\'"    . web-mode)
          ("\\.jsp\\'"    . web-mode)
-         ("\\.gsp\\'"    . web-mode))
+         ("\\.gsp\\'"    . web-mode)
+         ("\\.php\\'"    . web-mode)
+         ("\\.ctp\\'"    . web-mode))
   :config
   ;; web-modeの設定
   )