Re: [PHP] [PHP or maybe JavaScript or CSS] protecting my PHP from bad input

Thanks Eugen,

I'm familiar with the concepts, but I've seen sites with textboxes that
would not show any letter typed - only numbers are displayed in the textbox.
This is what I like but don't know how to achieve. :-)


> : #The problem:
> : This is about protecting my PHP from bad input (e.g.: letters instead
> : of numbers).
>
> Good idea. You need to make sure user-inputted data is valid.
>
> : ##
> : Is there a way to prevent user from even inputting a letter in a text
> : box?
>
> There's two general ways to do data validation: client-side and
> server-side. PHP is server-side. JavaScript is client-side.
..
..
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On Wed, Nov 19, 2003 at 10:21:16AM +0100, Miroslav I. wrote:
:
: I'm familiar with the concepts, but I've seen sites with textboxes
: that would not show any letter typed - only numbers are displayed in
: the textbox. This is what I like but don't know how to achieve. :-)

Base on what I mentioned earlier, it sounds like you're looking for
JavaScript-based data validation. Your best bet is to look at examples
of JavaScript code. Here's a link to HotScript.com:

http://www.hotscripts.com/JavaScript...rms/index.html