array(
'rule' => 'regex',
'regex' => '/^.+$/',
'label' => 'Ihr Name: ',
'errormsg' => 'Bitte geben Sie einen Namen ein.'
),
'email' => array( //name of field in html form
'rule' => 'email', //validation rule
'regex' => false, //regex (if 'rule' == 'regex')
'label' => 'Ihre E-Mail Adresse: ', //label in E-Mail
'errormsg' => 'Bitte geben Sie eine gültige E-Mail-Adresse ein.' //error message if validation failed
),
'strasse' => array(
'rule' => 'none',
'regex' => false,
'label' => 'Ihre Straße: ',
'errormsg' => 'Bitte geben Sie eine gültige Straße ein.'
),
'hausnummer' => array(
'rule' => 'none',
'regex' => false,
'label' => 'Hausnummer: ',
'errormsg' => 'Bitte geben Sie eine gültige Hausnummer ein.'
),
'plz' => array(
'rule' => 'regex',
'regex' => '/^[0-9]+$/',
'label' => 'Ihre PLZ: ',
'errormsg' => 'Bitte geben Sie eine gültige PLZ ein.'
),
'ort' => array(
'rule' => 'none',
'regex' => false,
'label' => 'Ihr Ort: ',
'errormsg' => 'Bitte geben Sie Ihren Ort ein.'
),
'land' => array(
'rule' => 'none',
'regex' => false,
'label' => 'Ihr Land: ',
'errormsg' => 'Bitte geben Sie Ihr Land ein.'
),
'nachricht' => array(
'rule' => 'length',
'regex' => 3,
'label' => 'Ihre Nachricht: '.PHP_EOL,
'errormsg' => 'Bitte geben Sie eine Nachricht ein, um das Formular abschicken zu können'
),
//'phone' => array(
//'rule' => 'regex',
//'regex' => '/^[0-9]+$/',
//'label' => 'Phone: ',
//'errormsg' => 'Please enter a valid Phone Number.'
//),
);
$tokenmismatchmsg = 'Entschuldigen Sie bitte, es ist leider ein Fehler beim Versenden des Kontaktformulars aufgetreten.'; //error message if user reloads browser and submits form again.
$mailsendfailedmsg = 'Das Abschicken des Formulars ist Fehlgeschlagen. Bitte Entschuldigen Sie die Unannehmlichkeiten und versuchen Sie es später erneut.'; //error message if mail() failed.
$successmsg = 'Vielen Dank für Ihre Nachricht!
Wir werden Ihre Anfrage so bald als möglich bearbeiten!
'; //info message if contact form was sent successfully.
$errormsg = ''; //template for error messages. {{ content }} is replaced with one or more error messages
$errormsgseparator = ''; //separator put between each error message.
////////////////////
session_start();
$errors = array();
$emailfields = array();
$formstatus = null;
//set array to represent current form content
//can be displayed later in HTML input fields
foreach ($fields as $key => $value) {
if(array_key_exists($key, $_POST)){
$formContent[$key] = htmlentities(mb_eregi_replace('(^\\s+)|(\\s+$)/u', '', utf8_decode($_POST[$key])));
}else{
$formContent[$key] = '';
}
}
if(array_key_exists('submit', $_POST)){
$formstatus = true;
if($_SESSION['formtoken'] === $_POST['token']){
foreach($fields as $fieldName => $field){
//clean input from leading/trailing spaces and stuff
$fieldValue = mb_eregi_replace('(^\\s+)|(\\s+$)/u', '', $_POST[$fieldName]);
//check if defined field exists in POST array
if(!array_key_exists($fieldName, $_POST)){
$formstatus = false;
$errors[] = 'input field missing';
continue;
}
//prepare each form field for email
$emailfields[] = $field['label'] . $fieldValue;
switch ($field['rule']) {
case 'regex':
//field has to match regex
$regex = $field['regex'];
if(preg_match($regex, $fieldValue) !== 1){
$errors[] = $field['errormsg'];
$formstatus = false;
}
break;
case 'email':
//field has to be a valid email address
$regex = '/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$/';
if(preg_match($regex, $fieldValue) !== 1){
$errors[] = $field['errormsg'];
$formstatus = false;
}
break;
case 'notempty':
//field may not be empty
if(empty($fieldValue)){
$errors[] = $field['errormsg'];
$formstatus = false;
}
break;
case 'length':
if(strlen($fieldValue) < intval($field['regex'])){
$errors[] = $field['errormsg'];
$formstatus = false;
}
break;
case 'none':
//field doesn't need to be validated. (e. g. optional field)
break;
default:
//validation rule doesn't exist
$formstatus = false;
$errors[] = 'invalid rule '.$field['rule'];
break;
}
}
} else {
//form token doesn't match
$errors[] = $tokenmismatchmsg;
$formstatus = false;
}
if($formstatus === true){
//prepare mail content
$mailcontent = $mailheader.implode(PHP_EOL, $emailfields).$mailfooter;
//prepare additional SMTP Headers
$headers = 'From: '.$_POST['email'].PHP_EOL;
$headers .= 'Reply-To: '.$_POST['email'].PHP_EOL;
//send email
$result = mail($recipientmail, $subject, $mailcontent, $headers);
if($result === false){
$errors[] = $mailsendfailedmsg;
$formstatus = false;
}else{
//empty formContent
foreach($formContent as $key => $value){
$formContent[$key] = '';
}
}
}
//prepare error message according to settings above
$errors = implode($errormsgseparator, $errors);
$errormsg = str_replace('{{ content }}', $errors, $errormsg);
}
$token = uniqid();
$_SESSION['formtoken'] = $token;
?>
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