Web Page Form - E-mail Field Verification

[foochuck]

hello i'm new to php, i'm using a script that basically just grabs the fields from a web page and sends it by e-mail...heres what the code looks like at the top of the page:

if (!$HTTP_POST_VARS[SchoolName] || !$HTTP_POST_VARS[Name] ||
!$HTTP_POST_VARS[Phone])
{
include("cafeteria_error.htm");
} else
{
include("cafeteria_thankyou.php");
}

I'd like to put 2 e-mail fields on my form, one for the first time they type it and the 2nd e-mail field for verification..and then somehow through php compare the 2, and if it passes it will call cafeteria_thankyou.php else it will call up cafeteria_error.htm...anyone know how to do this? Theres something similar to it when you sign up for this forum..you have to enter your e-mail address twice.

Thanks

Foochuck

[HalfaBee]

Change the if to this.

f (!$HTTP_POST_VARS[SchoolName] || !$HTTP_POST_VARS[Name] ||
!$HTTP_POST_VARS[Phone] ||
!( $HTTP_POST_VARS['email1']==$HTTP_POST_VARS['email2'])
)

If you are using PHP 4.3 you should start using the $_POST variable.
Exactly the same as HTTP_POST_VARS but a superglobal array.
Also array index's should be strings not constants, even though php assumes undefined constants to be strings..

HalfaBee

[foochuck]

Thanks Halfabee!

I will try that out.

Know any good sources for learning PHP? I'd like to learn what it's capabilities are and just all about it from the ground up...whether it's a book or a website...anything you can recommend?

Thanks!

-Foochuck

[Moonglobe]

Webmonkey has a very good tutorial. this is where I learned PHP.

[dalecosp]

Sites: Here, of course 🙂.

www.zend.com
www.devguru.com

Books:
"PHP & the World Wide Web", Larry Ullman Peachpit Press.
"PHP & MySQL Web Development", Luke Welling/Laura Thomson. SAM'S Publishing. [I imagine you could find them at Google.]

[foochuck]

halfabee,

regarding this post:

Change the if to this.

f (!$HTTP_POST_VARS[SchoolName] || !$HTTP_POST_VARS[Name] ||
!$HTTP_POST_VARS[Phone] ||
!( $HTTP_POST_VARS['email1']==$HTTP_POST_VARS['email2
'])
)

If you are using PHP 4.3 you should start using the $_POST variable.
Exactly the same as HTTP_POST_VARS but a superglobal array.
Also array index's should be strings not constants, even though php assumes undefined constants to be strings..

HalfaBee

How would I change the the code I originally wrote for the $_POST variable?

-Foochuck

[Moonglobe]

just replace $HTTP_POST_VARS['index'] to $_POST['index']

[foochuck]

okay heres the php i use to verify that certain fields are filled out, as well as to verify that the e-mail address was typed in correctly both times:

if (!$POST['Message'] || !$POST['Name'] || !$POST['SchoolName'] || !( $POST['email']==$_POST['email2
']) )
{
include("error.htm");
} else
{
include("thankyou.php");
}

I tried testing it out, typed in 2 different e-mail addresses and the form still went through without hitting the 'error.htm' page first.

Is there something I'm doing wrong? In my form page I have the forms named correctly (email and email2).

-Foochuck

[dalecosp]

Try putting the '!' operator inside the parentheses in the last expression.

|| (!$_POST['Email']==$_POST['Email2']))

[Morital]

i think this part of code:

|| (!$_POST['Email']==$_POST['Email2']))
/* should be: */
|| ($_POST['Email']!==$_POST['Email2']))
/* or */
|| (!($_POST['Email']==$_POST['Email2'])))

[foochuck]

Thanks Morital the 2nd option worked and heres how it looks:

if (!$POST['Message'] || !$POST['Name'] || !$POST['SchoolName'] || (!($POST['Email']==$_POST['Email2'])))
{
include("error.htm");
} else
{
include("thankyou.php");
}

One more thing...this was an existing php script I used...someone else created it..could someone run through how this thing is working...I understand that if the fields message, name and schoolname aren't filled out it won't go through and also that the e-mail address typed into email and email2 must be exact, also that it goes to the error.htm page if any of that isn't finished or correct and it goes to thankyou.php if it is..i'd just like to know what all the characters in the script are doing...

and thanks for your time! you people rock.

-foochuck

[dalecosp]

 ||  #or...
&&  #and...
!   #not/no/nonexistent...
=   #assigns a value
==  #is equal to
if  # what it says
!=  #is not equal to

else   #follows an 'if'; this code only runs if the if !=true || 1

include 'somefile.html';  #includes all the code from
                        # the named file in the current script

BTW, sorry about that bungle up there. Good catch, Morital....

[Morital]

Thank you dalecosp and welcome foochuck 🙂

[foochuck]

Well that clears some things up...onward I go 😃

Much Thanks!

-Foochuck