VBScript InStrRev Function

Complete VBScript Reference

The InStrRev function returns the position of the first occurrence of one string within another. The search begins from the end of string, but the position returned counts from the beginning of the string.

The InStrRev function can return the following values:

• If string1 is "" - InStrRev returns 0
• If string1 is Null - InStrRev returns Null
• If string2 is "" - InStrRev returns start
• If string2 is Null - InStrRev returns Null
• If string2 is not found - InStrRev returns 0
• If string2 is found within string1 - InStrRev returns the position at which match is found
• If start > Len(string1) - InStrRev returns 0

Tip: Also look at the InStr function

Syntax

InStrRev(string1,string2[,start[,compare]])

Example 1

dim txt,pos
txt="This is a beautiful day!"
pos=InStrRev(txt,"his")
document.write(pos)

Output:

2

Example 2

dim txt,pos
txt="This is a beautiful day!"
'textual comparison
pos=InStrRev(txt,"B",-1,1)
document.write(pos)

Output:

11

Example 3

dim txt,pos
txt="This is a beautiful day!"
'binary comparison
pos=InStrRev(txt,"T")
document.write(pos)

Output:

1

Example 4

dim txt,pos
txt="This is a beautiful day!"
'binary comparison
pos=InStrRev(txt,"t")
document.write(pos)

Output:

15

Complete VBScript Reference

The Ektron Intranet lets you do everything you need to do on your corporate intranet and everything you want to do... all with just one application. What can you do with the Ektron Intranet? Navigate through content, documents, assets, colleagues and workgroups quickly and intuitively with enterprise search Communicate with friends and colleagues with forums, message boards and corporate blogging using the new Social Networking Platform Utilize the extensive out-of-the box features or customize your site through Ektron CMS400.NET's open architecture Promote collaboration in your organization through project workspaces where others can efficiently find information and work together Author/edit content, manage navigation, menus, audit trails, workflow and approvals with the best in breed Content Management See why there are 20,000+ Ektron integrations worldwide.
	TAKE THE VIDEO TOUR
	or download a FREE TRIAL today.

Jump to: Top of Page or HOME or Printer friendly page

W3Schools provides material for training only. We do not warrant the correctness of its contents. The risk from using it lies entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

Copyright 1999-2008 by Refsnes Data. All Rights Reserved.

W3Schools was converted to XHTML in December 1999