the
rinstr
of
(
haystack ,
needle )
rinstr
(
haystack ,
needle )
Haystack and needle yield string
s.
The rinstr
function returns the index of the last appearance of the string needle in the string haystack, starting at 1. If needle cannot be found in haystack, zero
is returned.
This function is case-insensitive. For a case-sensitive version of this function, see csRinstr
. For a regular expression-based version of this function, see regRinstr
.