grep - How to find php files with code outside of a function or class and doesn't contain a string? -

i want find php files code outside of function - ignore library , class files.

then check if files call function - security function called require_login()

is possible?

finding files have code outside of classes , function non-trivial.

instead:

• i looking files defining classes, interfaces or functions , excluding them , returning non-matching files.
• then looking in list php file.
• then looking calling require_login.

grep -rel "^\ *(function|([aa]bstract |[ff]inal )?class|[ii]nterface)" \ | grep ".php$" \ | xargs grep -l require_login