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Thread: Required fields in php email form

  1. #1
    Join Date
    May 2012
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    Default Required fields in php email form

    We have a problem with our web site form getting submitted blank or just a couple of fields.
    I would like to make 'required' the fields 'email, name and telephone'.
    I thought 'email' was being checked in the code below but it's not.
    I have tried all sorts by surfing the web and adding/changing code but not found the solution.

    This is the form back to it's original (working) state..
    Any ideas?
    Thank you

    [CODE]
    <?php

    $my_email = "xxxx@xxxxx.com";

    $continue = "/";

    $errors = array();

    // Remove $_COOKIE elements from $_REQUEST.

    if(count($_COOKIE)){foreach(array_keys($_COOKIE) as $value){unset($_REQUEST[$value]);}}

    // Check all fields for an email header.

    function recursive_array_check_header($element_value)
    {

    global $set;

    if(!is_array($element_value)){if(preg_match("/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i",$element_value)){$set = 1;}}
    else
    {

    foreach($element_value as $value){if($set){break;} recursive_array_check_header($value);}

    }

    }

    recursive_array_check_header($_REQUEST);

    if($set){$errors[] = "You cannot send an email header";}

    unset($set);

    // Validate email field.

    if(isset($_REQUEST['email']) && !empty($_REQUEST['email']))
    {

    if(preg_match("/(%0A|%0D|\n+|\r+|:)/i",$_REQUEST['email'])){$errors[] = "Email address may not contain a new line or a colon";}

    $_REQUEST['email'] = trim($_REQUEST['email']);

    if(substr_count($_REQUEST['email'],"@") != 1 || stristr($_REQUEST['email']," ")){$errors[] = "Email address is invalid";}else{$exploded_email = explode("@",$_REQUEST['email']);if(empty($exploded_email[1]) || strlen($exploded_email[0]) > 64 || empty($exploded_email[1])){$errors[] = "Email address is invalid";}else{if(substr_count($exploded_email[0],".") == 0){$errors[] = "Email address is invalid";}else{$exploded_domain = explode(".",$exploded_email[1]);if(in_array("",$exploded_domain)){$errors[] = "Email address is invalid";}else{foreach($exploded_domain as $value){if(strlen($value) > 63 || !preg_match('/^[a-z0-9-]+$/i',$value)){$errors[] = "Email address is invalid"; break;}}}}}}

    }

    // Check referrer is from same site.

    if(!(isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']) && stristr($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST']))){$errors[] = "You must enable referrer logging to use the form";}

    // Check for a blank form.

    function recursive_array_check_blank($element_value)
    {

    global $set;

    if(!is_array($element_value)){if(!empty($element_value)){$set = 1;}}
    else
    {

    foreach($element_value as $value){if($set){break;} recursive_array_check_blank($value);}

    }

    }

    recursive_array_check_blank($_REQUEST);

    if(!$set){$errors[] = "You cannot send a blank form";}

    unset($set);

    // Display any errors and exit if errors exist.

    if(count($errors)){foreach($errors as $value){print "$value<br>";} exit;}

    if(!defined("PHP_EOL")){define("PHP_EOL", strtoupper(substr(PHP_OS,0,3) == "WIN") ? "\r\n" : "\n");}

    // Build message.

    function build_message($request_input){if(!isset($message_output)){$message_output ="";}if(!is_array($request_input)){$message_output = $request_input;}else{foreach($request_input as $key => $value){if(!empty($value)){if(!is_numeric($key)){$message_output .= str_replace("_"," ",ucfirst($key)).": ".build_message($value).PHP_EOL.PHP_EOL;}else{$message_output .= build_message($value).", ";}}}}return rtrim($message_output,", ");}

    $message = build_message($_REQUEST);

    $message = $message . PHP_EOL.PHP_EOL."-- ".PHP_EOL."";

    $message = stripslashes($message);

    $subject = "Free Consultation Request";

    $headers = "From: " . $_REQUEST['email'];

    mail($my_email,$subject,$message,$headers);


    ?>
    [CODE]

  2. #2
    Join Date
    May 2012
    Location
    Wales UK
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    Default

    Im not sure if i got what you mean but if this helps here is what i have. This validates every field that is in this line of space

    PHP Code:
        // validation expected data exists
        
    if(!isset($_POST['first_name']) ||
            !isset(
    $_POST['last_name']) ||
            !isset(
    $_POST['email']) ||
            
    //!isset($_POST['telephone']) ||
            
    !isset($_POST['comments'])) {
            
    died('We are sorry, but there appears to be a problem with the information you submitted.');      
        } 
    you can add and remove from that i hope it helps


    Code:
    if(isset($_POST['email'])) {
       $email_to = "email.com";
        $email_subject = "Lights On In Heaven";
     function died($error) {
            // your error code can go here
            echo "We are very sorry, but there were error(s) found with the information you submitted. ";
            echo "These errors appear below.<br /><br />";
            echo $error."<br /><br />";
            echo "Please go back and fix these errors.<br /><br />";
            die();
        }
    
        // validation expected data exists
        if(!isset($_POST['first_name']) ||
            !isset($_POST['last_name']) ||
            !isset($_POST['email']) ||
            //!isset($_POST['telephone']) ||
            !isset($_POST['comments'])) {
            died('We are sorry, but there appears to be a problem with the information you submitted.');      
        }
    
        $first_name = $_POST['first_name']; // required
        $last_name = $_POST['last_name']; // required
        $email_from = $_POST['email']; // required
        $telephone = $_POST['telephone']; // not required
        $comments = $_POST['comments']; // required
         
        $error_message = "";
        $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
    
      if(!preg_match($email_exp,$email_from)) {
        $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
      }
        $string_exp = "/^[A-Za-z .'-]+$/";
      if(!preg_match($string_exp,$first_name)) {
        $error_message .= 'The First Name you entered does not appear to be valid.<br />';
      }
      if(!preg_match($string_exp,$last_name)) {
        $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
      }
      if(strlen($comments) < 2) {
        $error_message .= 'The Comments you entered do not appear to be valid.<br />';
      }
      if(strlen($error_message) > 0) {
        died($error_message);
      }
        $email_message = "";
         
        function clean_string($string) {
          $bad = array("content-type","bcc:","to:","cc:","href");
          return str_replace($bad,"",$string);
        }
    
        $email_message .= "".clean_string($comments)."\n\n";
        $email_message .= "First Name: ".clean_string($first_name)."\n";
        $email_message .= "Last Name: ".clean_string($last_name)."\n";
        $email_message .= "Email: ".clean_string($email_from)."\n";
        $email_message .= "Telephone: ".clean_string($telephone)."\n";
         
         
    // create email headers
    $headers = 'From: '.$email_from."\r\n".
    'Reply-To: '.$email_from."\r\n" .
    'X-Mailer: PHP/' . phpversion();
    @mail($email_to, $email_subject, $email_message, $headers); 
    ?>
     
    <!-- include your own success html here -->
     
    Thank you for contacting us. We will be in touch with you very soon.
     
    <?php
    }
    ?>

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