form auth

pinehead18

I'm a little curious no how to go about writing this specific code.
My goal is to create a form and after you click submit it checks to make sure specific input feilds have data in them. And if not to go back to the signup page and tell the user what fields need to be filled in.

if you can help me maby show me a script or howto article or guide me in the right direction i would be very grateful.

Thank you
Anthony

rgermain

This best left to Javascript. A sample of what is needed below and this is rather simple to use once you got it down.

<script>
function validate ()
{
var firstname = document.nameForm.fname.value;
if(firstname == "")
alert("You Forgot Your First Name!);
return false;
}
</script>

<form name="nameForm" onSubmit = "return validate(this);">
<input type="text" name="fname"><BR>
<input type ="submit" name="send" value="Submit">
</form>

There is the basics. Experiment and have fun stupid proofing your forms!

simply___skewed

Yeah well, the most practical option would be to use javascript for this as rgermain has provided you with and not php. reason being there no point going back to the server to validate something that can be done client side -

Cheers

stolzyboy

Originally posted by simply•skewed
Yeah well, the most practical option would be to use javascript for this as rgermain has provided you with and not php. reason being there no point going back to the server to validate something that can be done client side -

Cheers

i have to disagree...

the only problem with that is that people can turn off javascript, so it is best to leave that up to PHP to check for validity, really just as easy on the server side, and you don't have to worry about different user browser settings

rgermain

True, but depending on the mass use of the site leaving this up to PHP would leave the user with more of headache. That or more coding for yourself. Once you submitted the form if anything is wrong the user will have to fill in out the whole form again and if you have a bunch of fields this could to be a pain. I guess the common response I have seen on forums to the "how to validate form" question is leave it up to Javascript. Either way I guess its up to the developer.

stolzyboy

fill out the form if anything is wrong, nope, if there is an error, you spit out the form with the error message beside wherever the error is, and populate the fields with whatever was posted, except the one that caused the error

<?
if (yousubmitform)
{
if (thereareerrors)
{
//form
//input's values with $_POST['formfieldname']
}
else
{
//form was fine do whatever
}
}
else
{
//original form
}
?>

stolzyboy

Originally posted by rgermain
I guess the common response I have seen on forums to the "how to validate form" question is leave it up to Javascript.

you've been at the wrong forum 😃

rgermain

Aaahh...True true. Do you think that is more coding, less, or about the same in the end? (Compared to using javascript)

stolzyboy

less, in the end, all you have to really do is cut-n-paste the form and fill in the value tags with $_POST['varname'], so you really aren't doing too much more coding, and if you do it all in javascript and your client gets word that it isn't working, then you'll end up doing it server side anyway

the best way, but is obviously more coding, would be to use both

rgermain

Oh, ok. I think that I might have to start changing my practices a little. That point has never been brought to my attention before. Thanks for the input!

xposed

Okey.. say that u've validatad the form with php...
all the feilds are correct and everything is fine...

how do u display that the user have registered correctly??

U could have a static page for that but that's not the right sollution for that... right?

pinehead18

Here is my setup.. Tell me what you think and the best way to do this.

I have signup.php the form refers it to register.php which has all the php on it.

But, in validating that wouldnt' work would it?

Cuase then it can't stay on the form page and the users can fill out what they missed correct?

What would be the best way to do this?

Thank you
Anthony