Returns the start point for the next regular expression match.
This function has no parameters.
mb_ereg_search_getpos returns the point to start regular expression match for mb_ereg_search, mb_ereg_search_pos, mb_ereg_search_regs. The position is represented by bytes from the head of string.
The internal encoding or the character encoding specified by mb_regex_encoding will be used as the character encoding for this function.