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Creating Custom validation of Fields
September 17, 2009
3:06 pm

Please replace the ??? with your dat!

Hi,  I want to write some custom validation routines for my cforms  – I know I can use reg expressions in the form creation but really want to be able to call a routine to validate the input and return something to the form indicating that that particlar field has failed. 

So can someone give me a simple example to get me started.

If I have a text feld (e.g. Name) and want to validate it is a string and has more than 10 characters – how and where would I write my own routine to do this check? How would I return a value indicating that a field has failed validation – can someone give me a solid example.

I repeat – I know I can do this using regulrar expressions when I decalre the form – but want this  to start me off. 



September 18, 2009
7:31 am
Munich, Germany
Forum Posts: 6400
Member Since:
March 6, 2005

forum search: a couple of weeks ago, a user posted a solution for non ajax….

September 18, 2009
11:34 am

Just done a  search on that item … and all that came up was my post. 

Could you please give me a link.


PS cForms is increbile.

September 18, 2009
11:50 am
May 24, 2012
3:01 pm

This guy did it….…


for non ajax mode, wonderfull… 

i implemented a invitation key validation, which checks the database for valid keys.


i had to tweak the lib_validation.php … perhaps you like to add this tweak to the official release.


Yours Sven


PS: Besides … GREAT WORK Oliver ! 

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