utf8_byte_position (line 30)

Given a string and a character index in the string, in

terms of the UTF-8 character position, returns the byte index of that character. Can be useful when you want to PHP's native string functions but we warned, locating the byte can be expensive Takes variable number of parameters - first must be the search string then 1 to n UTF-8 character positions to obtain byte indexes for - it is more efficient to search the string for multiple characters at once, than make repeated calls to this function

• return: - int if only one input int, array if more
• author: Chris Smith<chris@jalakai.co.uk>

• string 0: string to locate index in
• int 1: (n times)

utf8_locate_next_chr (line 159)

Given a string and any byte index, returns the byte index of the start of the next UTF-8 character, relative to supplied position. If the next character begins at the same place as the supplied byte index, that byte index will be returned.

• return: byte index of start of next UTF-8 character
• author: Chris Smith<chris@jalakai.co.uk>

• string &$str
• int $idx: byte index in the string