Add php-project-etags-file variable

Author: zonuexe

php-project.el

@@ -104,6 +104,11 @@ STRING
   (put 'php-project-root 'safe-local-variable
        #'(lambda (v) (or (stringp v) (assq v php-project-available-root-files))))
 
+  (defvar-local php-project-etags-file nil)
+  (put 'php-project-etags-file 'safe-local-variable
+       #'(lambda (v) (or (functionp v)
+                         (php-project--eval-bootstrap-scripts v))))
+
   (defvar-local php-project-bootstrap-scripts nil
     "List of path to bootstrap php script file.
 
@@ -172,7 +177,6 @@ Typically it is `pear', `drupal', `wordpress', `symfony2' and `psr2'.")
   (put 'php-project-server-start 'safe-local-variable
        #'(lambda (v) (or (functionp v)
                          (php-project--eval-bootstrap-scripts v)))))
-
 
 ;; Functions
 (defun php-project--validate-php-file-as-template (val)