Monday, 10 February 2014

How to Create a Contact Form for Your Website in an Easy Way : A Set of Step by Step Tutorials Using HTML5, CSS3 and PHP (9)

(For the latest PDF files Merger Software please have a look at the top of the left margin, inside the red box.) 
Continues From Part 8

How to get IP addresses of visitors.

As promised, in this refinement I'll get the IP address of the visitor and show inside a formatted division to visitors who come to the contact page. You can use the code inside any other page of your choice. First let me put the final code here for your consideration  (download PHP code in Zip format here or open the code in text format here).

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<!DOCTYPE html>
<!--
Created by Peter Jones 10 February, 2014
www.codesforus.blogspot.com 
copyrights
-->
<html>
    <head>
        <title> Demo-Final: Dysprosium Contact Form, Get IP</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width">
        <script type= "text/javascript">
            var RecaptchaOptions = {
                theme: 'white'
            };
        </script>
        <style>            
            #contact-wrapper {
                margin: 20px auto;
                border: 2px solid #ccc;
                border-radius: 5px;
                padding: 20px 50px 20px 50px;
                background: transparent;
                width: 600px;
            }
            #contact-area {
                width: 600px;
                margin-top: 25px;
            }            
            #contact-area label {
                float: left;
                margin-right: 15px;
                padding-top: 5px;
                width: 100px;
                text-align: right;
                font-size: 100%;
            }
            #contact-area input, #contact-area textarea {
                margin: 0px 0px 10px 0px;
                border: 2px solid #ccc;
                border-radius: 5px;
                padding: 5px;
                width: 471px;
                font-family: Helvetica, sans-serif;
                font-size: 110%;
            }
            #contact-area textarea {
                height: 90px;
            }
            #contact-area textarea:focus, #contact-area input:focus {
                border: 2px solid #900;
            }
            #contact-area input.submit-button {
                float: left;
                cursor: pointer; 
                margin-top:10px;
                margin-left:112px;
                background: transparent;
                width: 100px;
                font-size: 100%;
                color: #024d8e
            }
            #contact-area input[type="submit"]:hover{
                border: 2px solid #900;
            } 
            #recaptcha_widget_div {
                margin-top: 20px;
                margin-bottom: 10px;
                margin-left: 112px;
            }            
            #recaptcha_fail_div {
                margin-top: 20px;
                margin-bottom: 10px;
                margin-left: 112px;
                border:medium groove #A00;
                border-radius: 5px;
                border:medium groove #A00;
                padding:3px;
                background-color:transparent;
                width:350px;
                color:#900;
                font-weight:bold;
                font-size:80%;
            }      
        </style>
    </head>
    <body>
        <div id="contact-wrapper">
            <div id="contact-area">
                <form method="post" action="">
                    <label for="Name"><span style="color: red; font-size: 100%">*&nbsp;</span>Name:</label>
                    <input type="text" name="Name" id="Name" value="<?php echo isset($_POST['Name']) ? $_POST['Name'] : '' ?>" />
                    
                    <label for="City">City:</label>
                    <input type="text" name="City" id="City" value="<?php echo isset($_POST['City']) ? $_POST['City'] : '' ?>" />
                    
                    <label for="Email"><span style="color: red; font-size: 100%">*&nbsp;</span>Email:</label>
                    <input type="text" name="Email" id="Email" value="<?php echo isset($_POST['Email']) ? $_POST['Email'] : '' ?>" />
                    
                    <label for="Subject">Subject:</label>
                    <input type="text" name="Subject" id="Subject" value="<?php echo isset($_POST['Subject']) ? $_POST['Subject'] : '' ?>" />
                    
                    <label for="Message"><span style="color: red; font-size: 100%">*&nbsp;</span>Message:</label>
                    <textarea name="Message" rows="20" cols="20" id="Message"><?php echo isset($_POST['Message']) ? $_POST['Message'] : '' ?></textarea>
                    
                    <p style="margin:20px auto 10px 112px;">Fields shown by <span style="color: red; font-size: 100%">*&nbsp;</span> are required.</p>
                        <div id="recaptcha_widget_div">
                            <?php
                                require_once('recaptchalib.php');
                                $publickey = "6LcJA-sSAAAAAPVPHLiHjGTlkhuWhLX2Luj3hS85"; // you got this from the signup page
                                echo recaptcha_get_html($publickey);
                            ?>
                        </div>
                    <input type="submit" name="submit" value="Submit" class="submit-button" />
                </form>
                <div style="clear: both;">
                </div>
                <?php
                    $visitor_ip = getVisitorIP();
                    $hdshake =null;
                    if( isset($_POST['submit']) ) { 
                        $error = null;
                        require_once('recaptchalib.php');
                        $privatekey = "6LcJA-sSAAAAABCEyOe_wqfheVwfxfu4L9idhqhv";
                        $Name = Trim(stripslashes($_POST['Name'])); 
                        $City = Trim(stripslashes($_POST['City'])); 
                        $Email = Trim(stripslashes($_POST['Email'])); 
                        $Subject = Trim(stripslashes($_POST['Subject']));
                        $Message = Trim(stripslashes($_POST['Message']));
                        $hdshake .= '<li>Your IP :&nbsp;'. $visitor_ip .'</li>';
                        $hdshake .= '<li>Your eMail :&nbsp;'.$Email.'</li>';
                        echo '<div id="recaptcha_fail_div"><ul>'. $hdshake .'</ul></div>'; 
                        if( !empty($Email) ){ 
                            list($emailPart, $domainPart) = explode('@', $Email);
                            $one=filter_var($Email, FILTER_VALIDATE_EMAIL);
                            $two=MailIPAddress($domainPart);
                            if (!(($one) && ($two))) {
                                $error .= '<li>Email is invalid .</li>';
                                echo '<div id="recaptcha_fail_div"> <ul>'. $error .'</ul></div>';
                                exit();
                            } 
                        }
                        $error .= ( empty($Name) )  ? '<li>Please enter your name.</li>' : null;
                        $error .= ( empty($Email) ) ? '<li>Blank Email is not accepted.</li>' : null;
                        $error .= ( empty($Message) ) ? '<li>Please enter some comments or questions.</li>' : null;
                        
                        $resp = recaptcha_check_answer ($privatekey, 
                                                        $_SERVER["REMOTE_ADDR"], 
                                                        $_POST["recaptcha_challenge_field"], 
                                                        $_POST["recaptcha_response_field"]);                        
                        $error .= ( !($resp->is_valid) ) ? '<li>The captcha code entered is incorrect .</li>' : null;
                        if (!empty($error)) {
                            // What happens when the CAPTCHA was entered incorrectly
                            echo '<div id="recaptcha_fail_div"> <ul>'. $error .'</ul></div>';
                            exit();
                        } 
                        //Next send contact to website admin.
                        $EmailToAdmin = "carlo.dj@messiahpsychoanalyst.org"; //Put your website admin email here. Don't forget quotes. 
                        // body of the email your own admin receives
                        $Body = "RE: Contact from visitors";
                        $Body .= "\n";
                        $Body .= "Name: ";
                        $Body .= $Name;
                        $Body .= "\n";
                        $Body .= "City: ";
                        $Body .= $City;
                        $Body .= "\n";
                        $Body .= "Subject: ";
                        $Body .= $Subject;
                        $Body .= "\n";
                        $Body .= "Email: ";
                        $Body .= $Email;
                        $Body .= "\n";
                        $Body .= "Visitor's IP: ";
                        $Body .= $visitor_ip;
                        $Body .= "\n";
                        $Body .= "Message: ";
                        $Body .= "\n";
                        $Body .= $Message;
                        $Body .= "\n";
                        // send email to admin
                        $posted = mail($EmailToAdmin, $Subject, $Body, "From: <$Email>");
                        // redirect to thanks page 
                        if ($posted){
                            echo '<div style=\'margin-top: 20px; margin-left:112px; border: 2px groove blue; border=radius:5px; padding-left: 10px; width:400px;\'>
                                     <p>Thanks By <a href="http://messiahpsychoanalyst.org">Dysprosium</a></p>
                                     <hr style=\'margin: 1px auto 1px auto; height: 1px; color: #fefefe; width: 82%;\'/> 
                                     <h1>Your message has been sent! Thanks for Your Message!</h1>
                                     <p><a href="Default.html">Click to go to Home page!</a></p>
                                  </div>';
                            //After thank you send an email containing his message to the visitor
                            // prepare email body text
                            $Body = " Madam/Sir,\n Thank you for your message.\n Dysprosium.\n";
                            $Body .= " ======================================================\n\n";
                            $Body .= "Name: ";
                            $Body .= $Name;
                            $Body .= ", Esq.";
                            $Body .= "\n";
                            $Body .= "From: ";
                            $Body .= $City;
                            $Body .= "\n";
                            $Body .= "Email: ";
                            $Body .= $Email;
                            $Body .= "\n";
                            $Body .= "Subject: ";
                            $Body .= $Subject;
                            $Body .= "\n";
                            $Body .= "Message: ";
                            $Body .= "\n";
                            $Body .= $Message;
                            $Body .= "\n";
                            // send email 
                            mail($Email, $Subject, $Body, "From: <$EmailToAdmin>");
                        }                        
                    }
                    else{
                        echo '<div id="recaptcha_fail_div">&nbsp;&nbsp;Your IP :&nbsp;'. $visitor_ip .'</div>';                                 
                    }
                ?>
            </div>
        </div>
        <?Php
            /**
             * http://www.electrictoolbox.com/php-get-mail-server-ip-address/
             * Get a mail server's IP address with PHP
             * Posted November 9th, 2012 in PHP by Chris Hope
             * Returns an IP address that mail can be delivered to for the passed in domain.
             *
             **/
            function MailIPAddress($domain) {
                $ip = false;
                $records = dns_get_record($domain, DNS_MX);
                $priority = null;
                foreach ($records as $record) {
                    if ($priority == null || $record['pri'] < $priority) {
                        $myip = gethostbyname($record['target']);
                        // if the value returned is the same, then the lookup failed
                        if ($myip != $record['target']) {
                            $ip = $myip;
                            $priority = $record['pri'];
                        }
                    }
                }
                if (!$ip) {
                    $ip = gethostbyname($domain);
                    // if the value returned is the same, then the lookup failed
                    if ($ip == $domain) {
                        $ip = false;
                    }
                }
                return $ip;
            }
        ?>
        <?php
            function getVisitorIP() {
                $client = @$_SERVER['HTTP_CLIENT_IP'];
                $forward = @$_SERVER['HTTP_X_FORWARDED_FOR'];
                $remote = $_SERVER['REMOTE_ADDR'];
                if (filter_var($client, FILTER_VALIDATE_IP)) {
                    $ip = $client;
                } 
                else { 
                     if (filter_var($forward, FILTER_VALIDATE_IP)) {
                         $ip = $forward;
                     } 
                     else {
                         $ip = $remote;
                     }
                }
                return $ip;
            }
        ?>
    </body>
</html>

Look at lines (254) to (272). A function has been added that returns IP address using PHP standard methods. This is very crude implementation of PHP and those methods should be guarded, in principle, against access to any global. Nevertheless it works for now and interested individual can do better by gaining deeper knowledge of PHP.
At line (130) visitor's IP has filled variable  $visitor_ip  to be displayed later with an echo command. Line (131) defines a $hdshake variable to show a formatted phrase for $visitor_ip and $Email of the visitor.

130
131
 $visitor_ip = getVisitorIP();
 $hdshake =null;

If the visitor has attempted the contact form, then lines (141) to (143) display their IP and email. 

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143
 $hdshake .= '<li>Your IP :&nbsp;'. $visitor_ip .'</li>';
 $hdshake .= '<li>Your eMail :&nbsp;'.$Email.'</li>';
 echo '<div id="recaptcha_fail_div"><ul>'. $hdshake .'</ul></div>';

Otherwise, if the visitor has just landed on the contact form page, then the page only displays his IP. This is reflected in the else phrase in lines (216) to (218).

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 else{
      echo '<div id="recaptcha_fail_div">&nbsp;&nbsp;Your IP :&nbsp;'. $visitor_ip .'</div>';                                 
 }

Meanwhile note that lines (174) to (176), where you have sent the visitor's IP back for yourself for having further information to keep in your own database.

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 $Body .= "Visitor's IP: ";
 $Body .= $visitor_ip;
 $Body .= "\n";

This is the snap-shot of page when visitor lands on page.

Above IP has been painted to a wrong number to avoid coincidence with some people's real IP. You can check yours by clicking here, please. In the next article we collect IP's of every visit in a text file.

Download this tutorial as PDF format here
Download part 1 to part 9 as PDF format here
Posted by Peter Jones at 21:27
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