Only .php staged files

Author: goncaloasimoes

pre-commit

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # Get list of staged files excluding deleted files (lowercase d in --diff-filter).
-FILES=$(git diff --cached --name-only --diff-filter=d)
+FILES=$(git diff --cached --name-only --diff-filter=d | grep \\.php)
 if [[ $(echo $FILES | wc -c) -eq "1" ]]
 then
   # No files staged, let git handle the rest.