[10.x] fix compiled view file ends with .php

[kstych]

hi, current implementation fails when a view contains following

<?php
eval("dump(Auth::user());");

with error : failed to open file .../storage/framework/views/some-file-name.php(3) : eval()'d code

"file_get_contents(...storage/framework/views/some-file-name.php(3) : eval()'d code): Failed to open stream: No such file or directory"

this is due to the "eval' code" string appended at the end of the file name.

This fix also checks the file name ends with .php to correctly validate before reading the file

Thanks