Form Captcha

    <script>
    function checkForm() {
    if (document.forms.myphpform.elements['yname'].value.length == 0) {
    alert('Please enter a value for the "Name" field');
    return false;
    }
    if (document.forms.myphpform.elements['email'].value.length == 0) {
    alert('Please enter a value for the "Email" field');
    return false;
    }
    if (document.forms.myphpform.elements['message'].value.length == 0) {
    alert('Please enter a value for the "Message" field');
    return false;
    }

    return true;
    }
    </script>


    <form action="?done=1" method="post" name="myphpform" onSubmit="return checkForm()" >
    <table border=0>
    <tr>
    <td>Your Name:</td> <td><input type="text" name="yname" size="50" maxlength="50" value="" /></td>
    </tr>

    <tr>
    <td>Your Email:</td> <td><input type="text" name="email" size="50" maxlength="50" value="" /></td>
    </tr>

    <tr>
    <td>Message:</td> <td><input type="text" name="message" size="50" maxlength="50" value="" /></td>
    </tr>
    <tr>
    <td>Are you a human being?</td>
    <td>
    <?php

    @require_once('recaptchalib.php');
    $publickey = "YOUR-PUBLIC-KEY";
    $privatekey = "YOUR-PRIVATE-KEY";

    $resp = null;
    $error = null;

    # are we submitting the page?
    if ($_POST["submit"]) {
    $resp = recaptcha_check_answer ($privatekey,
    $_SERVER["REMOTE_ADDR"],
    $_POST["recaptcha_challenge_field"],
    $_POST["recaptcha_response_field"]);

    if ($resp->is_valid) {
    $to="davy_yg@yahoo.com";
    $subject="Feedback from Masterlink.co.id";
    $body=" Message via webform:

    Name: " .$_POST["yname"] . "\n

    Email: " .$_POST["email"] . "\n

    Message: " .$_POST["message"] . "\n";
    /* send email */
    mail($to,$subject,$body);
    echo "<p>Email sent!</p>";
    exit(1);

    } else {
    echo "Sorry cannot send email as you've failed to provide correct captcha! Try again...";
    }
    }
    echo recaptcha_get_html($publickey, $error);
    ?>
    <td/>
    </tr>
    <tr>
    <td> </td>
    <td><input type="submit" name="submit" value="submit" /></td>
    </tr>
    </table>
    </form>

Your Name:
Your Email:
Message:
Are you a human being?
Notice: Undefined index: submit in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 124
Input error: k: Format of site key was invalid

Line 124:  if ($_POST["submit"]) {

How to fix the problem ?

if (isset($_POST["submit"])) {

the error message disappeared. The captcha picture does not eappear yet.

Your Name:
Your Email:
Message:
Are you a human being? Input error: k: Format of site key was invalid

Your public and private keys aren't valid for the domain. Go back to Recaptcha and create new ones for the current domain, or create universal public and private keys.

how to create new ones for the current domain or universal public and private keys?

Go back to Recaptcha and create new ones

It's too difficult. Maybe someone can help me on this one:

I include this codes in my form.

<?php 

    session_start();
    include("phpsimple/simple-php-captcha.php");
    $_SESSION['captcha'] = captcha();

    echo '<img src="' . $_SESSION['captcha']['image_src'] . '" alt="CAPTCHA" />';
?>

I wonder why the captcha does not appear.

It's a free script: simple-php-captcha-script

Demo page

From the first link: "The only dependency is the PHP GD library." Do you have this one enabled?

what is PHP GD Library? How to enable it?

Check your PHP.INI or take a look at your phpinfo();

It's too difficult

All you need to do is go to ReCaptcha enter your URL, and if you want universal keys, check a box. Then update your code to use the new keys.

What's difficult about filling in a field and ticking a box?

I've tried to recaptcha earlier get a downloaded file yet it asked me for a password. I do not know the password and do not get it in the email that I entered.

where to find the php.ini ?

Its supper easy to get google re-captcha
Customize re captcha from here - Re-Captcha

ok, I tried using the goole recaptcha and still confuse how to customize it:

<script type="text/javascript"
     src="http://www.google.com/recaptcha/api/challenge?k=your_public_key">
</script>

<!-- Wrapping the Recaptcha create method in a javascript function -->
      <script type="text/javascript">
         function showRecaptcha(element) {
           Recaptcha.create("your_public_key", element, {
             theme: "red",
             callback: Recaptcha.focus_response_field});
         }
      </script>

<!-- ... your HTML <body> content ... -->

  <div id="recaptcha_div"></div>

  <input type="button" value="Show reCAPTCHA" onclick="showRecaptcha('recaptcha_div');"></input>

<?php

Recaptcha.destroy()
?>

Now, I have this:

[Show recaptcha]

Notice: Use of undefined constant Recaptcha - assumed 'Recaptcha' in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 99

Fatal error: Call to undefined function destroy() in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 99

I do not see the recaptcha images yet, only the button.

src="http://www.google.com/recaptcha/api/challenge?k=[you generated public key]">

Step 1: You have to signup to re-chaptcha and have to add/create a new domain to re-captcha/google from here:
-> http://www.google.com/recaptcha/whyrecaptcha
-> https://www.google.com/recaptcha/admin/create


Step 2: Then you will get 2 Information like api key and public key which you should place above where write[your public key]

It will work once you are developing it to your localhost/local server.


Hope this will make sense..

the recapca appear. Yet, after I enter the recaptcha information this error appears:

Warning: mail() [function.mail]: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in C:\xampp\htdocs\Rustoleum\kontak_action.php on line 24
ERROR

why is it?

konsultasi-konsumen.php

<div id="form">
<form action="kontak_action.php" method="get">
<table border="0">
<tr align="left">
    <th>Nama&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:</th>
    <th><input type="text" name="nama" size="25"/></th>
</tr>
<tr align="left">
    <th>Email&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:</th>
    <th><input type="text" name="email" size="25" /></th>
</tr>
<tr align="left">
    <th>Telp&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:</th>
    <th><input type="text" name="telp" size="25" /></th>
</tr>
<tr align="left">
    <th>Komentar :</th>
    <th><textarea name="question" cols="30" rows="5"></textarea></th>
</tr>
<tr align="left">
    <th></th>
    <th><input type="submit" value="Submit" /></th>
</tr>
<tr>
<th><input type="button" value="Show reCAPTCHA" onclick="showRecaptcha('recaptcha_div');"></input></th>
<th><script type="text/javascript" src="http://www.google.com/recaptcha/api/challenge?k=6LdNVtMSAAAAAI-k_TFX4X_mICUsXJ3UAquWvuGl">
</script></th>
</th>
</tr>
</table>
</form> 

Failed to connect to mailserver at "localhost" port 25

If you use mail() on localhost, then most likely you did not install a mailserver.

Click Here

I just uploaded to the webserver. It works without the recaptcha. It doesn't work with the recaptcha. Yes, I do use mail() in kontak_action.php .

Explain a little better what works, and what does not.

the mail form does work without the recaptcha. Now it doesn't work with the recaptcha. After I enter the data in the form and press submit it brings me to the next blank page.

Before I can receive all the input information.

kontak_action.php

<?php 
    $name       = $_REQUEST['nama'];
    $email      = $_REQUEST['email'];
    $telp       = $_REQUEST['telp'];
    $question   = $_REQUEST['question'];

    function HtmlSecure() {
        $_GET = array_map('htmlspecialchars' , $_GET);
        $_POST = array_map('htmlspecialchars' , $_POST);
        $_COOKIE = array_map('htmlspecialchars' , $_COOKIE);
    }

    HtmlSecure();

    $to = "davy_yg@yahoo.com";
    $subject = "Masterlink.co.id Contacts";
    $from = "info@masterlink.co.id";
    $body = "A visitor at masterlink.co.id has sent the following information\n
    Nama            : $name
    Email           : $email
    Telp            : $telp
    Pesan           : $question";

    if (mail($to, $subject, $body,"From: info@masterlink.co.id")) 
    {
       // header("location:../index.php?pg=Contacts&lang=$lang");

       echo "We've received your contact information";
    } 

    else
    {
        //header("location:../index.php?pg=Contacts&lang=$lang");

        echo "ERROR";
    }

?>

A blank page indicates errors in your script. Add debug information to see where it stops.

How to get the debug information? I am using dreamweaver for the code editors. Also, firefox for browser. I already installed firebug to see if it shows me somethings. It doesn't show me anything.

this is the url for the next blank page:

http://www.masterlink.co.id/kontak_action.php?nama=fsd&email=sfds&telp=fsdfsdf&question=fsdfsd&recaptcha_challenge_field=03AHJ_Vuuz7cCiXjqM8XGx4tjci87ig_VQ4xdNatbDOaKQ3Fcp5JQ0dx6fwp6prwlX7QdIdrTB82o_LlCaVUJgTLJtQVhhAudD-p5GBcf04uz3j5yJoz404Dk-ThRJE8KilP96q-YrFc6EzYQvEodcLicqpnXVym7kSA&recaptcha_response_field=calamity+hertais

I do not know whether it process the captcha information correctly.

Do it the old fashioned way, add echo 'step X'; to your code, so you see where it stops.

where to write echo 'step X' ?

konsultasi-konsumen.php mostly coded in html

kontak-action.php written in php. and I already place the echo 'step X' in the beginning of the page, the next page after I input the form is a blank page.

konsultasi-konsumen.php

Well, one problem: without inputing the captcha information I also still receive the e-mail message.

This is the next page now: step XWe've received your contact information

I have this error: how to fix it?

Warning: require_once(recaptchalib.php) [function.require-once]: failed to open stream: No such file or directory in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 117

Fatal error: require_once() [function.require]: Failed opening required 'recaptchalib.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 117

Failed opening required 'recaptchalib.php'

That file cannot be found. Check your path.

another error:

Notice: Undefined index: recaptcha_challenge_field in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 121

Notice: Undefined index: recaptcha_response_field in C:\xampp\htdocs\Rustoleum\konsultasi-konsumen.php on line 122
The reCAPTCHA wasn't entered correctly. Go back and try it again.(reCAPTCHA said: incorrect-captcha-sol)

line 121 & 122:
        $_POST["recaptcha_challenge_field"],
        $_POST["recaptcha_response_field"]);

This is the whole code underneath the form:

<?php
  require_once('recaptchalib.php');
  $privatekey = "your_private_key";
  $resp = recaptcha_check_answer ($privatekey,
                                $_SERVER["REMOTE_ADDR"],
                                $_POST["recaptcha_challenge_field"],
                                $_POST["recaptcha_response_field"]);

  if (!$resp->is_valid) {
    // What happens when the CAPTCHA was entered incorrectly
    die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." .
         "(reCAPTCHA said: " . $resp->error . ")");
  } else {
    // Your code here to handle a successful verification
  }
  ?>