Hallo!
Ich habe einen PHP Form Mailer, der Eingaben von meiner Website an meine E-Mail Adresse senden soll... er funktioniert leider mit meinen Eingabefeldern nicht 
Hat von euch wer ne Ahnung was hier falsch läuft?
Das ist mein Code dazu:
HTML:-----------------------------------------------------------------------------------------------------------------------------------
HTML
<form method="post" action="/contact.php">
<div class="row">
<div class="col-md-6 mb-3 mb-lg-0 col-lg-3">
<label for="checkin">Anreise</label>
<div class="field-icon-wrap">
<div class="icon"><span class="icon-calendar"></span></div>
<input type="text" id="checkin_date" class="form-control">
</div>
</div>
<div class="col-md-6 mb-3 mb-lg-0 col-lg-3">
<label for="checkin">Abreise</label>
<div class="field-icon-wrap">
<div class="icon"><span class="icon-calendar"></span></div>
<input type="text" id="checkout_date" class="form-control">
</div>
</div>
<div class="col-md-6 mb-3 mb-md-0 col-lg-3">
<div class="row">
<div class="col-md-6 mb-3 mb-md-0">
<label for="checkin">Erwachsene</label>
<div class="field-icon-wrap">
<div class="icon"><span class="ion-ios-arrow-down"></span></div>
<select name="" id="" class="form-control">
<option value="">1</option>
<option value="">2</option>
<option value="">3</option>
<option value="">4+</option>
</select>
</div>
</div>
<div class="col-md-6 mb-3 mb-md-0">
<label for="checkin">Kinder</label>
<div class="field-icon-wrap">
<div class="icon"><span class="ion-ios-arrow-down"></span></div>
<select name="" id="" class="form-control">
<option value="">0</option>
<option value="">1</option>
<option value="">2</option>
<option value="">3</option>
<option value="">4+</option>
</select>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-3 align-self-end">
<button class="btn btn-primary btn-block">Anfrage senden</button>
</div>
<div class="col-md-12" style="margin-top:20px;">
<label for="checkin">E-Mail-Adresse</label>
<input type="text" class="form-control px-3 py-3" placeholder="Bitte dringend ausfüllen!">
<br><input required type="checkbox" id="acceptance" name="acceptance" value="yes"> Ich stimme der <a style="text-decoration:underline" href="impressum.html">Datenschutzerklärung</a> zu. *<br>
</div>
</div>
</form>PHP:------------------------------------------------------------------------------------------------------------------------------------------
PHP
<?php
$mailTo = 'xxxxxxxxxxxxxxxxxxxxxxxxxxx';
$mailFrom = '"FormMailer" <info@xxxxxxxxxxxxxx>';
$mailSubject = 'Anfrage von Website';
$returnPage = 'https://www.xxxxxxxxxxx/danke.html';
$returnErrorPage = 'http://www.xxxxxxxxxx/error.html';
$mailText = "";
if(isset($_POST)) {
foreach($_POST as $name => $value) {
if(is_array($value)) {
$mailText .= $name . ":\n";
foreach($valueArray as $entry) {
$mailText .= " " . $value . "\n";
}
}
else {
$mailText .= $name . ": " . $value . "\n";
}
}
}
if(get_magic_quotes_gpc()) {
$mailtext = stripslashes($mailtext);
}
$mailSent = @mail($mailTo, $mailSubject, $mailText, "From: ".$mailFrom);
if($mailSent == TRUE) {
header("Location: " . $returnPage);
}
else {
header("Location: " . $returnErrorPage);
}
exit();
?>