strripos Find position of last occurrence of a case-insensitive string in a string intstrripos stringhaystack stringneedle Returns the numeric position of the last occurrence of needle in the haystack string. Unlike strrpos, strripos is case-insensitive. Also note that string positions start at 0, and not 1. If needle is not found, &false; is returned. &return.falseproblem; ]]> See also strrpos, strrchr, substr, and stristr.