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-   -   Quick question about using db-escapestring and vb Input cleaner (https://vborg.vbsupport.ru/showthread.php?t=215779)

jwocky 06-09-2009 09:45 PM

Quick question about using db-escapestring and vb Input cleaner
 
So I have a user inputted string ==>
i'm going to hack your table '; SELECT

I want to safely enter that string into my database, so using the advice I found here, I used the vb input cleaner (using TYPE_NOHTML) on the string and then also run the $db->escape_string function prior to inputted the variable into the database. I do this and all goes well.

But when I try to pull the data from the database at a later point and echo the string back out I get this as my result ==>
i\'m going to hack your table \'; SELECT

So it seems the \ are still in the string inside the databse. Is this normal? Should I not be running $db->escape_string on the string after doing a TYPE_NOHTML on the string. Is there anyway to remove the \'s correctly when re-displaying the strings?

Thanks for any guidance on this!

Dismounted 06-10-2009 07:17 AM

You don't need to run TYPE_NOHTML, escape_string() on TYPE_STR is fine when inserting into the database.

You only need TYPE_NOHTML when immediately displaying data to the user. Remember to use htmlspecialchars_uni() when fetching then displaying data from the database.

jwocky 06-10-2009 11:07 PM

even with TYPE STR the same problem occurs.....

Dismounted 06-11-2009 06:34 AM

Check if you are escaping the string twice. Also post the code you are using.


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