1. When an error similar to "file not found" occurs, check whether the location of the include file is correct. The following is the reference on the php manual page:
Files for including are first looked in your de_path relative to the current working directory and then in the directory of the current script. e. g. if your include_path is libraries, current working directory is/www/, you have ded include/. php and there is include "B. php "in that file, B. php is first looked in/www/libraries/and then in/www/include /. if filename begins. /or .. /, it is looked only in your de_path relative to the current working directory.
2. When an error similar to permission deny occurs, follow these steps:
A) checks whether the read permission of the included files is enabled.
B) Check whether the x permission of each directory on the included file path is enabled. This permission determines whether the directory can be browsed.