(PHP 5 CVS only)strripos -- Find position of last occurrence of a case-insensitive string in a string
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.
Note that the needle may be a string of one or more characters.
If needle is not found, FALSE is returned.
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE, such as 0 or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.
Example 1. A simple strripos() example
offset may be specified to begin searching an arbitrary number of characters into the string. Negative values will stop searching at an arbitrary point prior to the end of the string.