narfbg/CodeIgniter — comment on commit 901573ce19e905ce28a3f3345c33dedf9c703cd4
File: system/libraries/Form_validation.php line 604
By narfbg:

@brodkin This particular line checks the result of a method declared inside the `CI_Form_validation` class. Native PHP functions are run at line 586 (not visible in this diff as it wasn't written by me) and the docs say that any of them will work as long as they accept use with only 1 parameter.
It would indeed be very nice to handle more than one though - I'll try and implement that. :)