(no version information, might be only in CVS)
mb_strripos -- Finds position of last occurrence of a string within another, case insensitive
mb_strripos() performs multi-byte safe
strripos() operation based on
number of characters. needle position is
counted from the beginning of
haystack. First character's position is
0. Second character position is 1.
Unlike mb_strrpos(),
mb_strripos() is case-insensitive.
haystack
The string from which to get the position of the last occurrence
of needle
needle
The string to find in haystack
offset
The position in haystack
to start searching
encodingCharacter encoding name to use. If it is omitted, internal character encoding is used.