php jquery remote validate problem

Question

  <script type="text/javascript">
  $().ready(function() {
 jQuery.validator.addMethod("captcha", function(value, element)  {
       $.ajax({ url: "verifyCap.php",
                type: "GET",
                data: "txtCaptcha="+value,
                success:        
                     function(msg) { 
                         if(msg == "true")
                               return true;  // already exists
                         return false; 
                        }
                  });
    },"");
// validate signup form on keyup and submit
$("#signupForm").validate({
    rules: {
        title: "required",
        contactname: "required",
        email: {
            required: true,
            email: true
        },
        comment: "required",
        txtCaptcha:{
            required: true,
            captcha: true
        }
    },
    messages: {
        contactname: "Please enter your contact name",
        email: "Please enter a valid email address",
        comment: "Please enter your system requierment",
        txtCaptcha: {
            required:"Please enter verification code",
            captcha: "The verification code is incorrect"
        }
    }
});
});

My verifyCap.php

<?php
 session_start ();
 if ($_SERVER ["REQUEST_METHOD"] != "GET")
  die ( "You can only reach this page by posting from the html form" );
 if (($_GET ["txtCaptcha"] == $_SESSION ["security_code"]) && (! empty ( $_GET ["txtCaptcha"] ) && ! empty ( $_SESSION ["security_code"] ))) {
   echo  "true";
 } else {
     echo "false";
}
 ?>

My problem might due to the response format it is not true or false, but i print out whole verifyCap code. Anyone can help?

Is this the only validation you are doing with your form? Or is there other server-side validation as well? — KyleWpppd, Jun 10 '11 at 11:26

score 0 · Accepted Answer · answered Jun 10 '11 at 09:14

0

An ajax request does an get by default instead of a post. Change:

if ($_SERVER ["REQUEST_METHOD"] != "POST")

to

if ($_SERVER ["REQUEST_METHOD"] != "GET")

besides that, do not use $_REQUEST to get your data. Use $_GET instead.

You could also add some settings your ajax request:

   type: "POST",
   data: "your params here",

answered Jun 10 '11 at 09:14

Chris Laarman

1,559
12
25

**This** AJAX request uses `GET`, but not all requests do. You can set it to `POST` too. You should edit your answer to reflect that, as it is a little ambiguous. – Clement Herreman Jun 10 '11 at 09:19
Okay i change both to GET still the same problem – user236501 Jun 10 '11 at 09:31
@Clement: I was probably editing my post while your were commenting :) – Chris Laarman Jun 10 '11 at 09:49
It won't validate the txtcaptcha – user236501 Jun 10 '11 at 09:50
– user236501 Jun 10 '11 at 09:51
Did you pass the value of your txtCaptcha in your ajax request? If you haven't, that's probably the problem – Chris Laarman Jun 10 '11 at 09:54
Hi thanks, i have edited my code above, I am able to alert true or false correctly, but the error message won't disappear the form can't pass through even return true – user236501 Jun 10 '11 at 10:15
in your ajax request you have a `return false` right after the `return true`. Javavscript (unlike php) won't stop executing the script after a return, therefore following the return false all the time. move the `return false` to the `} else {`. – Chris Laarman Jun 10 '11 at 12:38

score 0 · Answer 2 · edited May 23 '17 at 11:48

0

You're receiving the whole verifyCap.php code because your PHP isn't interpreted by your web server.

In your verifyCap.php you are using the short tag notation (<? //code ?>). Not all server uses this php extension, and it is considered deprecated. If your webserver doesn't use this extension, then your code is considered as an XML document, as XML document always start with <?  ?>.

Use <?php //code ?> and your problem should be fixed.

Also, following @XpertEase answer isn't a bad idea either.

Edit: More info on PHP short tags Are PHP short tags acceptable to use? (via @XpertEase)

edited May 23 '17 at 11:48

Community

1
1

answered Jun 10 '11 at 09:18

Clement Herreman

10,274
4
35
57

that should help too indeed. More info here: http://stackoverflow.com/questions/200640/are-php-short-tags-acceptable-to-use – Chris Laarman Jun 10 '11 at 09:21
hi i have change it to – user236501 Jun 10 '11 at 09:30

php jquery remote validate problem

2 Answers2