Posted by Rik on 08/16/06 13:39

Petr Vileta wrote:
> "Chris" <designerNOSPAM@centurytel.net> píše v diskusním příspěvku
> news:ebtctd$8ao$1@news01.intel.com...
>> Hi,
>>
>> I have a form for uploading documents and inserting the data into a
>> mysql db. I would like to validate the form. I have tried a couple
>> of Javascript form validation functions, but it appears that the data
>> goes straight to the processing page, rather than the javascript
>> seeing if data is missing and popping up an alert. I thought it may
>> be because much of the form is populated with data from the db (lists,
>> etc.), but when I leave out data in a simple textbox, it still doesn't
>> see it. I've tried a couple of different things, that didn't work, so
>> I simplified and tried to address one form element at the simplest
>> level at a time - still no luck. Is there something special I need to
>> do to make the Javascript work before the PHP? Is there a good way to
>> do client side validation with PHP?
>>
> Javascript validation is not a good idea :-) Some users could have
> disabled scripting in browser.
> Validate data at server side and generate some warning into returned page.

Javascript validitation IS a good idea, as it can save the user a trip
to the server. You HAVE to check server-side too, that's true.

Grtz,
--
Rik Wasmus

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