Predefined input value

[scferg]

I was wondering, if it was possible to have predefined html form values. So, the form would only submit if the correct value was entered. Like, you need to enter "14" but you entered "13" ... the form would not submit. I just thought this would be a simple thing to do with javascript.

[The Little Guy]

Something like this:

 

function submitForm(){
    var val = document.getElementById('myField').value;
    if(val == 14){
        document.myForm.submit();
    }else{
        alert('Invalid Input');
    }
}

 

HTML:

<form name="myForm" action="page.php">
   <input id="myField" name="fieldName" />
   <input type="button value="Submit" onclick="submitForm();">
</form>

[scferg]

Awesome!

 

Thanks!

[scferg]

Is there someway that if the code isn't correct, it will display a message like "Code invalid, please retype the code again" ?

[phpQuestioner]

 

Yes, look in the "Else" part of the condition; of the script, that The Little Guy provided you.

 

Where it has this:

 

alert('Invalid Input');

[scferg]

Ok, thanks! 

[scferg]

Hmmmm... it seems to submit the form anyway. Try it at http://sims2news.com/?page=contact  and try entering something other than the image shows. It still submits the form  :-\

[The Little Guy]

that is because you have the type as a

type="submit"

change it to:

type="button"

[scferg]

Great! It works

[scferg]

Ok, I was using that as a type of CAPTCHA thing. I just needed something simple, but it was dumb of me to do it this way -- the bots have already gotten passed it. I've search all over the internet for a *real* CAPTCHA system, but all of them seem confusing. Like, some require databases and such. Do any of you know of a good CAPTCHA script, or know how to make one?

 

I really appreciate it

[The Little Guy]

Good: http://phpsnips.com/snippet.php?id=6

Or

Better: http://phpsnips.com/snippet.php?id=43

[scferg]

I tried the Advanced CAPTCHA script, but the image.php script seems messed up.

 

Go to http://sims2news.com/image.php to see it. I don't know how to fix it...

[scferg]

Nevermind...I just had to download the Disney.ttf font. But, now, I can't seem to get a valid code.

 

http://sims2news.com/form.php

 

Everything I've tried always returns with "The number you entered doesn't match the image."

[scferg]

Ok...nevermind again 

 

The Disney font was too hard to understand, and half the time the characters were cut off. I just changed it to a different font.

 

Thanks the help ! 

[scferg]

Hmmm....how would I implement this with my current forms if they already have an action? All of my forum have a action of http://mysite.com/v-cgi/forms.cgi

[phpQuestioner]

 

You know this is the JavaScript forum; right? ???

 

You need to post server side scripting questions in the appropriate forums on this website.

[scferg]

Then you can move it there. This kind of branched of my original Javascript thread.

[phpQuestioner]

 

Sorry, I cannot move this thread; I am not a moderator. You can post a question, similar to this one, in the server side scripting forums; which can be found here:

 

http://www.phpfreaks.com/forums/index.php?action=collapse;c=25;sa=expand#25

 

http://www.phpfreaks.com/forums/index.php?action=collapse;c=27;sa=expand#27