NXSL:rindex

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Returns the position of the last occurrence of substring in string up to or before position if specifed.

Syntax

rindex(string, substring [,position]);

string	The string which will be examined.
substring	The string which we will search for.
position	[Optional] The position in string to start searching back from.

All index values are 1-based (i.e. the first character has index 1, not 0).

Integer value of the position substring was found at, will return 0 if not found.

rindex("abcdabcd","cd")  	      ->	7
rindex("abcdef","cd",2)  	      ->	0
rindex("abcdefabcdef","cd",4)	      ->	3