Email form not working on new server

[froggger]

Hi, 

Just wondering if someone can please help. My web hosting company has just moved my website to a new server with php 5.4 and for some reason the below code does not work. Can someone please help and let me know what I need to do to adjust this code so it can work again please?

Thank you in advance.

/*****************************************************************************
 *                                                                           *
 *                C  O  N  F  I  G  U  R  A  T  I  O  N                      *
 *                                                                           *
 *****************************************************************************/

// email for send submitted forms //////////////////////////////////////////
// if empty, use value from form ('send_to' field)
$send_to = "Name <info@domainname.com.au>";

// set $send_cc address if you need copy of mail to other addresses
// for example: $send_cc = array('friend1@ccc.cc', 'friend2@ccc.cc'); 
//
$send_cc = array(); 

// Subject. if empty, use value from form ('subject' field)
$subject = "New Form Inquiry";

// Allowed Referres. Should be empty or list of domains
$referrers = array(); 

// Attachments
$attachment_enabled = 0;

////// Database - write CSV file with data of submitted forms //////////////
$database_enabled = 0;
$database_file = 'email.csv';

// Fields to collect
// $database_fields = '*' - mean all fields, as in form
// $database_fields = array('from', 'subject') - only 'from', 'subject' fields
$database_fields = '*'; 

////// Redirect user after submitting form 
$redirect_url = 'http://www.domainname.com.au/thankyou.htm';

////// Auto-Responder
////// You can substitute any of form fields in response by using
////// %field_name% in response text.
//////
$autoresponder_enabled = 1;
$autoresponder_from = $send_to;
$autoresponder_subject = "%subject%Inquiry - Name (Autoresponse)";
$autoresponder_message = <<<MSG

Hi %Fullname%,

Thank your for your Inquiry. We will be contacting you very soon 

to follow up your request. If you have any further inquiries 

please don't hesitate to contact us.

Regards,
Name

________________________________________________________

MSG;

/***************************************************************************/

function do_formmail(){
    global $autoresponder_enabled, $database_enabled;
    $form      = get_form_data();
    $errors    = check_form($form);
    if ($errors) {
        display_errors($errors);
        return;
    }
    send_mail($form);
    if ($autoresponder_enabled) 
        auto_respond($form);
    if ($database_enabled)
        save_form($form);
    redirect();
}

function redirect(){
    global $redirect_url;
    header("Location: $redirect_url");
    exit();
}


function save_form($vars){
    global $database_file, $database_fields;
    $f = fopen($database_file, 'a');
    if (!$f){
        die("Cannot open db file for save");
    }
    foreach ($vars as $k=>$v) {
        $vars[$k] = str_replace(array("|", "\r","\n"), array('_',' ',' '), $v);
    }
    if (is_array($database_fields)) {
        $vars_orig = $vars; 
        $vars = array();
        foreach ($database_fields as $k)
            $vars[$k] = $vars_orig[$k];
    }
    $str = join('|', $vars);
    fwrite($f, $str."\n");
    fclose($f);
}

function auto_respond($vars){
    global $autoresponder_from, $autoresponder_message, $autoresponder_subject;
    /// replace all vars in message
    $msg = $autoresponder_message;
    preg_match_all('/%(.+?)%/', $msg, $out);
    $s_vars = $out[1]; //field list to substitute
    foreach ($s_vars as $k)
        $msg = str_replace("%$k%", $vars[$k], $msg);
    /// replace all vars in subject
    $subj = $autoresponder_subject;
    preg_match_all('/%(.+?)%/', $subj, $out);
    $s_vars = $out[1]; //field list to substitute
    foreach ($s_vars as $k)
        $subj = str_replace("%$k%", $vars[$k], $subj);
    //
    $_send_to = "$vars[name_from] <".$vars[email_from].">";
    $_send_from = $autoresponder_from;
    mail($_send_to, $subj, $msg, "From: $_send_from");
}

function _build_fields($vars){
    $skip_fields = array(
        'name_from', 
        'email_from', 
        'email_to', 
        'name_to', 
        'subject');
    // order by numeric begin, if it exists
    $is_ordered = 0;
    foreach ($vars as $k=>$v) 
        if (in_array($k, $skip_fields)) unset($vars[$k]);

    $new_vars = array();
    foreach ($vars as $k=>$v){
        // remove _num, _reqnum, _req from end of field names
        $k = preg_replace('/_(req|num|reqnum)$/', '', $k);
        // check if the fields is ordered
        if (preg_match('/^\d+[ \:_-]/', $k)) $is_ordered++;
        //remove number from begin of fields
        $k = preg_replace('/^\d+[ \:_-]/', '', $k);
        $new_vars[$k] = $v;
    }
    $vars = $new_vars;

    $max_length = 10; // max length of key field 
    foreach ($vars as $k=>$v) {
        $klen = strlen($k);
        if (($klen > $max_length) && ($klen < 40))
            $max_length = $klen;
    }

    if ($is_ordered)
        ksort($vars);

    // make output text
    $out = "";
    foreach ($vars as $k=>$v){
        $k = str_replace('_', ' ', $k);
        $k = ucfirst($k);
        $len_diff = $max_length - strlen($k);
        if ($len_diff > 0) 
            $fill = str_repeat('.', $len_diff);
        else 
            $fill = '';
        $out .= $k."$fill...: $v\n";
    }
    return $out;
}


function send_mail($vars){
    global $send_to, $send_cc;
    global $subject;
    global $attachment_enabled;
    global $REMOTE_ADDR;

    global $HTTP_POST_FILES;
    $files = array(); //files (field names) to attach in mail
    if (count($HTTP_POST_FILES) && $attachment_enabled){
        $files = array_keys($HTTP_POST_FILES);
    }

    // build mail
    $date_time = date('d-m-Y H:i');
    $mime_delimiter = md5(time());
    $fields = _build_fields($vars);
    $mail = <<<EOF
This is a MIME-encapsulated message
    
--$mime_delimiter
Content-type: text/plain
Content-Transfer-Encoding: 8bit

The Register form submitted:

$fields 
__________________________________________________________

DATE/TIME : $date_time


EOF;

    if (count($files)){
        foreach ($files as $file){
            $file_name     = $HTTP_POST_FILES[$file]['name'];
            $file_type     = $HTTP_POST_FILES[$file]['type'];
            $file_tmp_name = $HTTP_POST_FILES[$file]['tmp_name'];
            $file_cnt = "";
            $f=@fopen($file_tmp_name, "rb");
            if (!$f) 
                continue;
            while($f && !feof($f))
                $file_cnt .= fread($f, 4096);
            fclose($f);
            if (!strlen($file_type)) $file_type="applicaton/octet-stream";
            if ($file_type == 'application/x-msdownload')
                $file_type = "applicaton/octet-stream";

            $mail .= "\n--$mime_delimiter\n";
            $mail .= "Content-type: $file_type\n";
            $mail .= "Content-Disposition: attachment; filename=\"$file_name\"\n";
            $mail .= "Content-Transfer-Encoding: base64\n\n";
            $mail .= chunk_split(base64_encode($file_cnt));
        }
    }
    $mail .= "\n--$mime_delimiter--";


    //send to
    $_send_to = $send_to ? $send_to : "$vars[name_to] <".$vars[email_to].">";
    $_send_from = "$vars[name_from] <".$vars[email_from].">";
    $_subject = $subject ? $subject : $vars['subject'];

    mail($_send_to, $_subject, $mail, 
    "Mime-Version: 1.0\r\nFrom: $_send_from\r\nContent-Type: multipart/mixed;\n boundary=\"$mime_delimiter\"\r\nContent-Disposition: inline");

    foreach ($send_cc as $v){
      mail($v, $_subject, $mail, 
      "Mime-Version: 1.0\r\nFrom: $_send_from\r\nContent-Type: multipart/mixed;\n boundary=\"$mime_delimiter\"\r\nContent-Disposition: inline");
    }

}

function get_form_data(){
    global $REQUEST_METHOD;
    global $HTTP_POST_VARS;
    global $HTTP_GET_VARS;
    
    $vars = ($REQUEST_METHOD == 'GET') ? $HTTP_GET_VARS : $HTTP_POST_VARS;
    //strip spaces from all fields
    foreach ($vars as $k=>$v) $vars[$k] = trim($v);
    return $vars;
}

function check_form($vars){
    global $referrers;
    global $send_to;
    global $subject;
    global $HTTP_REFERER;

    $errors = array();

    // check from email set
    if (!strlen($vars['email_from'])){
        $errors[] = "<b>From Email address</b> empty";
    } else if (!check_email($vars['email_from'])){
        $errors[] = "<b>From Email address</b> incorrect";        
    }                 
    if (!strlen($send_to) && !strlen($vars['email_to'])){
        $errors[] = "<b>To Email</b> address empty (possible configuration error)";
    } else if (!strlen($send_to) && !check_email($vars['email_to'])){
        //if to email specified in form, check it and display error
        $errors[] = "<b>To Email address</b> incorrect";        
    }
    if (!strlen($vars['subject']) && !strlen($subject)){
        $errors[] = "<b>Subject</b> empty (possible configuration error)";
    }
    foreach ($vars as $k=>$v){
        // check for required fields (end with _req)
        if (preg_match('/^(.+?)_req$/i', $k, $m) && !strlen($v)){
            $field_name = ucfirst($m[1]);
            $errors[] = "Required field <b>$field_name</b> empty";
        }
        // check for number fields (end with _num)
        if (preg_match('/^(.+?)_num$/i', $k, $m) && strlen($v) && !is_numeric($v)){
            $field_name = ucfirst($m[1]);
            $errors[] = "Field <b>$field_name</b> must contain only digits or be empty";
        }
        // check for number & required fields (end with _reqnum)
        if (preg_match('/^(.+?)_reqnum$/i', $k, $m) && !is_numeric($v)){
            $field_name = ucfirst($m[1]);
            $errors[] = "Field <b>$field_name</b> must contain digits and only digits";
        }
    }

    //check referrer
    if (is_array($referrers) && count($referrers)){
        $ref = parse_url($HTTP_REFERER);
        $host = $ref['host'];
        $host_found = 0;
        foreach ($referrers as $r){
            if (strstr($host, $r)) 
                $host_found++;
        }
        if (!$host_found){
            $errors[] = "Unknown Referrer: <b>$host</b>";
        }
    }
    return $errors;
}

function display_errors($errors){
$errors = '<li>' . join('<li>', $errors);
print <<<EOF
<html>
    <head><title>aFormMail error</title></head>
<body bgcolor=white>
    <h3 align=center><font color=red>An Error Occured</font></h3>
    <hr width=80%>
    <table align=center><tr><td>
    $errors
    </td></tr></table>
    <p align=center>
    <a href="javascript: history.back(-1)">Return</a> and fix these errors 
    </p>
    <hr width=80%>
    <center>
    <font size=2>aFormMail - &copy <a href="">CGI Central, Inc.</a>, 2002</font>
    </center>
</body></html>
EOF;
}


/**
* Check email using regexes
* @param string email
* @return bool true if email valid, false if not
*/
function check_email($email) {
    #characters allowed on name: 0-9a-Z-._ on host: 0-9a-Z-. on between: @
    if (!preg_match('/^[0-9a-zA-Z\.\-\_]+\@[0-9a-zA-Z\.\-]+$/', $email))
        return false;

    #must start or end with alpha or num
    if ( preg_match('/^[^0-9a-zA-Z]|[^0-9a-zA-Z]$/', $email))
        return false;

    #name must end with alpha or num
    if (!preg_match('/([0-9a-zA-Z_]{1})\@./',$email) )                    
        return false;

    #host must start with alpha or num
    if (!preg_match('/.\@([0-9a-zA-Z_]{1})/',$email) )                    
        return false;

    #pair .- or -. or -- or .. not allowed
    if ( preg_match('/.\.\-.|.\-\..|.\.\..|.\-\-./',$email) )
        return false;

    #pair ._ or -_ or _. or _- or __ not allowed
    if ( preg_match('/.\.\_.|.\-\_.|.\_\..|.\_\-.|.\_\_./',$email) )
        return false;

    #host must end with '.' plus 2-5 alpha for TopLevelDomain
    if (!preg_match('/\.([a-zA-Z]{2,5})$/',$email) )
        return false;

    return true;
}

do_formmail();


?>

[Zane]

it's because you're using globals.  

Globals are removed in PHP as of version 5.4, and they were deprecated in 5.3.

[froggger]

Thank you for your help on that. I think I have fixed the problem.