#42 Broken E_NOTICE suppression

[Anonymous]

If E_NOTICEs are enabled prior to entering this code
then they are suppressed. however if E_NOTICEs are
disabled prior to reading an excel file then notices
are enabled while reading the excel file.

the line:

error_reporting($errlevel ^ E_NOTICE);

should be:

error_reporting($errlevel & !E_NOTICE);