dcsimg

Function to strip HTML/ASP/PHP tags from text

March 31, 2005



>>Script Language and Platform: SQL Server 2000
This function strips HTML tags (or any string between < and > characters) out of text strings.

Example:

Declare @MyText varchar(30)
Set @MyText = '<b>My <i>sample</i> Text</b>'

Select dbo.fnStripTags(@MyText)

Results:

---------------------
My sample Text

(1 row(s) affected)

Author: Robert Davis


/****** 
 Object: User Defined Function dbo.fnStripTags
 Script Author: Robert Davis, robertd@realtechllc.com 
 Purpose: Strip HTML tags out of text. Anything enclosed in '<' and '>' will be removed.
******/

Create Function dbo.fnStripTags
	(@Dirty varchar(4000))
	Returns varchar(4000)
As

Begin
	Declare @Start int,
		@End int,
		@Length int

	While CharIndex('<', @Dirty) > 0 And CharIndex('>', @Dirty, CharIndex('<', @Dirty)) > 0
	    Begin
		Select @Start = CharIndex('<', @Dirty), 
		  @End = CharIndex('>', @Dirty, CharIndex('<', @Dirty))
		Select @Length = (@End - @Start) + 1
		If @Length > 0
		    Begin
			Select @Dirty = Stuff(@Dirty, @Start, @Length, '')
		    End
	    End

	return @Dirty
End

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