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8.5

Form validation and success message

Asked by digitalPencil in PHP Scripting Language, Adobe Dreamweaver, Cascading Style Sheets (CSS)

Tags: php css html, all, www.davegrant.info/contact.html

I've lifted a PHP mail form off the web which is working great however all form validation is dealt with by the php file, form-process.php, so when you fail to fill in a field, it fires errors and the success message on a separate page.

The form works great although i'd like a more elegant solution to validating it, where it would simply display an asterisk '*' next to any blank fields and would replace the form with a success message when correctly submitted.

You can see the form at www.davegrant.info/contact.html
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<?php
if (!isset($_POST['submit']) || $_SERVER['REQUEST_METHOD'] != "POST") {
    exit("<p>You did not press the submit button; this page should not be accessed directly.</p>");
} else {
    $exploits = "/(content-type|bcc:|cc:|document.cookie|onclick|onload|javascript|alert)/i";
    $profanity = "/(beastial|bestial|blowjob|clit|cock|cum|cunilingus|cunillingus|cunnilingus|cunt|ejaculate|fag|felatio|fellatio|fuck|fuk|fuks|gangbang|gangbanged|gangbangs|hotsex|jism|jiz|kock|kondum|kum|kunilingus|orgasim|orgasims|orgasm|orgasms|phonesex|phuk|phuq|porn|pussies|pussy|spunk|xxx)/i";
    $spamwords = "/(viagra|phentermine|tramadol|adipex|advai|alprazolam|ambien|ambian|amoxicillin|antivert|blackjack|backgammon|texas|holdem|poker|carisoprodol|ciara|ciprofloxacin|debt|dating|porn)/i";
    $bots = "/(Indy|Blaiz|Java|libwww-perl|Python|OutfoxBot|User-Agent|PycURL|AlphaServer)/i";
 
    if (preg_match($bots, $_SERVER['HTTP_USER_AGENT'])) {
        exit("<p>Known spam bots are not allowed.</p>");
    }
    foreach ($_POST as $key => $value) {
        $value = trim($value);
 
        if (empty($value)) {
            exit("<p>Empty fields are not allowed. Please go back and fill in the form properly.</p>");
        } elseif (preg_match($exploits, $value)) {
            exit("<p>Exploits/malicious scripting attributes aren't allowed.</p>");
        } elseif (preg_match($profanity, $value) || preg_match($spamwords, $value)) {
            exit("<p>That kind of language is not allowed through our form.</p>");
        }
 
        $_POST[$key] = stripslashes(strip_tags($value));
    }
 
    if (!ereg("^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,6})$",strtolower($_POST['email']))) {
        exit("<p>That e-mail address is not valid, please use another.</p>");
    }
 
    $recipient = "davegrant85@gmail.com";
    $subject = "davegrant.info Contact Form";
 
    $message = "Contact form mail from davegrant.info: \n";
    $message .= "Name: {$_POST['name']} \n";
    $message .= "E-mail: {$_POST['email']} \n";
    $message .= "Website: {$_POST['website']} \n";
    $message .= "Feedback: {$_POST['comments']} \n";
 
    $headers = "From: davegrant.info <$recipient> \n";
    $headers .= "Reply-To: <{$_POST['email']}>";
 
    if (mail($recipient,$subject,$message,$headers)) {
        echo "<p>Thank you! Your mail was successfully sent to the webmaster. Thank you for your time.</p>";
    } else {
        echo "<p>Sorry, there was an error and your mail was not sent. Please find an alternative method of contacting the webmaster.</p>";
    }
}
?>
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[+][-]07/13/08 08:42 PM, ID: 21995517Accepted Solution

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About this solution

Zones: PHP Scripting Language, Adobe Dreamweaver, Cascading Style Sheets (CSS)
Tags: php css html, all, www.davegrant.info/contact.html
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Solution Provided By: logicalinsanity
Participating Experts: 2
Solution Grade: A
 
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