Microsoft® Visual Basic® Scripting Edition
| Language Reference |
Returns the position of an occurrence of one string within another, from the end of string.
InstrRev(string1, string2[, start[, compare]])
The InstrRev function syntax has these parts:
Part Description string1 Required. String expression being searched. string2 Required. String expression being searched for. start Optional. Numeric expression that sets the starting position for each search. If omitted, -1 is used, which means that the search begins at the last character position. If start contains Null, an error occurs. compare Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. If omitted, a binary comparison is performed. See Settings section for values.
The compare argument can have the following values:
Constant Value Description vbBinaryCompare 0 Perform a binary comparison. vbTextCompare 1 Perform a textual comparison. vbDatabaseCompare 2 Perform a comparison based upon information contained in the database where the comparison is to be performed.
InStrRev returns the following values:
If InStrRev returns string1 is zero-length 0 string1 is Null Null string2 is zero-length start string2 is Null Null string2 is not found 0 string2 is found within string1 Position at which match is found start > Len(string2) 0
Note that the syntax for the InstrRev function is not the same as the syntax for the Instr function.
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