如何獲得wordpress的自定義提交值並將其分配給變量？

Question

我正在創建一個表單，將表單的詳細信息發送到我的電子郵件。

我的自定義字段是：

我function.php

function getHotel_contact_number() { 
    global $wp_query; 
    $postid = $wp_query->post->ID; 
    $getHotel_contact_number = get_post_meta($postid, 'hotel_contact_number', true); 
    $getHotel_contact_number; 
} 

我的形式是：

<?PHP 
$errors = array(); 
if (isset($_POST["submit"])) { 
    $to = "myemail@email.com"; 
    $subject = "This is my subject";  
    $hotel = get_permalink(); 
    $hotel_contact_nmbr = getHotel_contact_number(); 
    $headers = array('From: '.$_POST['sendername'].' <'.$_POST['senderEmail'].'>'); 
    //Check the name and make sure that it isn't a blank/empty string. 
     if(empty($sender)){ 
      //Blank string, add error to $errors array.   
      $errors['sendername'] = "Please enter your name!"; 
     } 
     if(empty($senderEmail)){ 
      //Blank string, add error to $errors array.   
      $errors['senderEmail'] = "Please enter your email!"; 
     } 
    $mailBody = "<h3>Hotel Details</h3><br/> 
        $hotel<br/> 
        $hotel_contact_nmbr<br/>" 

    $mail_sent = wp_mail($to, $subject, $mailBody, $headers); 

} 
    if ($mail_sent) { ?> 

<h1 style="color: #007f00;">Request sent.</h1> 

<?php 
} else { 
?> 

<form id="" name="" action="<?php echo get_permalink(); ?>" method="post"> 
    <div class="label-input-wrapper"> 
     <div class="form-label">Name</div> 
     <div class="form-input"> 
      <input type="text" name="sendername" value="<?PHP if(!empty($errors)) { echo $sender;} ?>" /> 
      <div class="error-msg"> 
       <?php if(isset($errors['sendername'])) { echo '<span style="color: red">'.$errors['sendername'].'</span>'; } ?> 
      </div> 
     </div> 
    </div> 
    <div class="label-input-wrapper"> 
     <div class="form-label">E-Mail</div> 
     <div class="form-input"> 
      <input type="email" name="senderEmail" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}$" required value="<?PHP if(!empty($errors)) { echo $senderEmail;} ?>" /> 
      <div class="error-msg"> 
       <?php if(isset($errors['senderEmail'])) { echo '<span style="color: red">'.$errors['senderEmail'].'</span>'; } ?> 
      </div> 
     </div> 
    </div> 

    <input type="submit" value="Submit" name="submit"> 
</form> 

<?php 
} 
?> 

但是，當表單提交我我只得到一個空白值爲hotel contact number。我做錯了什麼？表單提交時如何獲得正確的自定義提交值？

無論如何，它的工作正常，如果我使用隱藏的領域，因爲我提到here： 看看我提到隱藏領域的問題的底部區域。用下面的代碼

Answer 1

更改功能：

function getHotel_contact_number() { 
    global $wp_query; 
    $postid = $wp_query->post->ID; 
    $getHotel_contact_number = get_post_meta($postid, 'hotel_contact_number', true); 
    return $getHotel_contact_number; 
}