Loads and returns the contents of filename, which is searched in several places This function should only be used by database provider's implementations
directory where the database provider has been installed
DATA directory to look for ($prefix/share)
name of the file to load
a new string containing filename's contents, or null if not found or if an error occurred
Loads and returns the contents of filename, which is searched in several places This function should only be used by database provider's implementations