php电子邮件表单。只想发布填充的字段而不是发布空字段

时间：2015-08-29 11:55:17

标签： php html forms

我的联系表单看起来像this

根据用户在＆＃34上选择的内容，系统会显示不同的表单字段;我希望<＃34; 选择框。

我想实现我在此网站上找到的solution。基本上，php只发布填写的字段，不发布空字段。它使用以下代码来实现它

foreach ($_POST as $Field=>$Value) { 
if($Value != ''){
$body .= "$Field: $Value\n";
}
}

我不熟悉PHP并且无法应用所提出的解决方案。如果有人可以帮助我的代码实现解决方案，使其发布非空表单元素，包括文本字段，选择框和广播组，将不胜感激。

我的PHP表单处理器的代码如下所示

<?php

$name = $_POST['name'];  
$email_address = $_POST['email'];  
$phone = $_POST['phone'];  
$message = $_POST['message'];  
$p_prefered_day = $_POST['p_prefered_day'];  (radio button)
$session_time = $_POST['session_time'];  (select box)
$p_message = $_POST['p_message'];  
$treatment = $_POST['treatment'];  (select box)
$therapist = $_POST['therapist'];  (select box)
$b_pref_day = $_POST['b_pref_day'];  (radio button)
$b_pref_time = $_POST['b_pref_time'];  (radio button)
$b_message = $_POST['b_message'];  

$to = 'info@zenwebcreative.com.au'; 
$email_subject = "Website Contact Form:  $name";
$email_body = "You have received a new message from your website contact form.\n\n"."Here are the details:\n\nName: $name\n\nCompany: $company\n\nEmail: $email_address\n\nPhone: $phone\n\nMessage:\n$message";
$headers = "From: noreply@yourdomain.com\n";
$headers .= "Reply-To: $email_address"; 

mail($to,$email_subject,$email_body,$headers);
return true;            
?>

我的表单的HTML代码如下所示

  <form name="sentMessage" id="contactForm" novalidate>                
    <div class="form-group">
      <label>Full Name *</label>
      <input type="text" class="form-control" id="name" required>
    <p class="help-block text-danger"></p>
    </div><!--  end form-group -->

    <div class="form-group">
      <label>Email Address*</label>
      <input type="email" class="form-control" id="email" required>
    <p class="help-block text-danger"></p>
    </div><!--  end form-group -->

    <div class="form-group">
      <label>Contact Number</label>
      <input type="text" class="form-control" id="phone">
    </div> <!-- end form group -->

    <div class="form-group">
    <label>I would like to *</label>
      <select id="select_question" class="form-control">            
        <option selected="selected">Please select</option>
        <option value="question">Ask a question</option>
        <option value="pilates">Attend a pilates class</option>
        <option value="booking">Schedule a booking</option>
      </select>
    </div><!--  end form-group --> 

    <div class="form-group box question">
    <label>Message</label>
      <div class="input-group">                  
        <textarea id="message" class="form-control" rows="7" required></textarea>
        <span class="input-group-addon"><span class="glyphicon glyphicon-asterisk"></span></span>
      </div><!--  end input group -->
    <p class="help-block text-danger"></p>
    </div><!--  end form-group --> 

    <div class="box pilates">

      <div class="form-group">
        <label>Prefered day of the week *</label><br>
        <label class="radio-inline">
          <input type="radio" name="p_prefered_day" id="Tue" value="Tuesday">Tuesday
        </label>
        <label class="radio-inline">
          <input type="radio" name="p_prefered_day" id="Thu" value="Thursday">Thursday
        </label>
      </div> <!-- end form group -->

      <div class="form-group">
      <label>Prefered Session you would like to attend? *</label>
        <select class="form-control" id="session_time">
          <option value="4:30 pm">4:30 pm</option>
          <option value="5:30 pm">5:30 pm</option>
          <option value="6:30 pm">6:30 pm</option>
        </select>
      </div><!--  end form-group --> 

      <div class="form-group">
      <label>Additional Comments</label>
        <div class="input-group">                  
          <textarea id="p_message" class="form-control" rows="7" required></textarea>
          <span class="input-group-addon"><span class="glyphicon glyphicon-asterisk"></span></span>
        </div><!--  end input group -->
      <p class="help-block text-danger"></p>
      </div><!--  end form-group --> 

    </div><!--  end box pilates -->

    <div class="box booking">

      <div class="form-group">
      <label>What Service Are You Interested In? *</label>
        <select class="form-control" id="services">
          <option value="Manual Therapy">Manual Therapy</option>
          <option value="Sports Physiotherapy">Sports Physiotherapy</option>
          <option value="Dry Needling">Dry Needling</option>
          <option value="Post and Pre operative care">Post and Pre operative care</option>
          <option value="Real Time Ultrasound Imaging">Real Time Ultrasound Imaging</option>
          <option value="Balance and Vestibular treatment">Balance and Vestibular treatment</option>
          <option value="Sports Specific Rehabilitation">Sports Specific Rehabilitation</option>
          <option value="Motor Vehicle Accident">Motor Vehicle Accident</option>
          <option value="Workers Compensation">Workers Compensation</option>            
        </select>
      </div><!--  end form-group --> 

      <div class="form-group">
      <label>Which therapist would you like to see*</label>
        <select class="form-control" id="therapist">
          <option selected="selected">No Preference</option>
          <option value="Kristen">Kristen</option>
          <option value="Tara">Tara</option>        
        </select>
      </div><!--  end form-group --> 

      <div class="form-group">
        <label>Prefered day of the week *</label><br>
        <label class="radio-inline">
          <input type="radio" name="b_pref_day" id="b_Mon" value="Mon-">Mon
        </label>
        <label class="radio-inline">
          <input type="radio" name="b_pref_day" id="b_Tue" value="Tue">Tue
        </label>
        <label class="radio-inline">
          <input type="radio" name="b_pref_day" id="b_Wed" value="Wed">Wed
        </label>
        <label class="radio-inline">
          <input type="radio" name="b_pref_day" id="b_Thu" value="Thu">Thu
        </label>
        <label class="radio-inline">
          <input type="radio" name="b_pref_day" id="b_Fri" value="Fri">Fri
        </label>
      </div> <!-- end form group --> 

      <div class="form-group">
        <label>Prefered time of the day</label><br>
        <label class="radio-inline">
          <input type="radio" name="b_pref_time" id="morning" value="Morning">Morning
        </label>
        <label class="radio-inline">
          <input type="radio" name="b_pref_time" id="afternoon" value="Afternoon">Afternoon
        </label>
      </div> <!-- end form group --> 

      <div class="form-group">
      <label>Addtional Comments</label>
        <div class="input-group">                  
          <textarea id="b_message" class="form-control" rows="7" required></textarea>
          <span class="input-group-addon"><span class="glyphicon glyphicon-asterisk"></span></span>
        </div><!--  end input group -->
      <p class="help-block text-danger"></p>
      </div><!--  end form-group --> 

   </div> <!-- end box booking -->

  <div class="clearfix"></div>

    <div id="success"></div>
    <button id="send_btn" type="submit" class="btn cpcbutton">Send Message</button>
    <p class="help-block"> <span class="glyphicon glyphicon-asterisk green"></span> Required Fields </p>
  </form>

提前致谢。

3 个答案:

答案 0 :(得分：1)

试试这个：

$body = "";
foreach ($_POST as $Field=>$Value) { 
    if($Value != ''){
        $body .= "$Field: $Value\n\n";
    }
}

$to = 'info@zenwebcreative.com.au'; 
$email_subject = "Website Contact Form:  $name";
$email_body = "You have received a new message from your website contact form.\n\n"."Here are the details: $body";
$headers = "From: noreply@yourdomain.com\n";
$headers .= "Reply-To: $email_address"; 

mail($to,$email_subject,$email_body,$headers);
return true;

我将所有从$ _POST数组中分配变量的代码替换为您提供的代码段。这基本上和你以前的代码做的一样。

答案 1 :(得分：0)

你的foreach - 循环按原样工作，但使用empty()时代码看起来更清晰，就像这样（但是你已经做了同样的工作！）：<​​/ p> 

foreach ($_POST as $field=>$value) { 
    if (!empty($value)) {
        $body .= "$field: $value\n\n";
    }
}

这会将全局$_POST - 非空数组中的所有变量分配到$body - 变量中。使用此功能，您不需要其他$_POST语句（例如$message = $_POST['message'];）。唯一的问题是打印$_POST - 数组中的所有内容（即使是提交按钮值！）。

然后你就把它放在mail - 这样的函数中：

$email_body = "You have received a new message from your website contact form.\n\n";
$email_body .= "Here are the details:\n\n";
$email_body .= "$body";
mail($to, $email_subject, $email_body, $headers);

另一种方法是明确检查每个字段，尽管这会生成更多代码。

if (!empty($_POST['name']))
    $body .= "Name: ".$_POST['name']."\n\n";
if (!empty($_POST['email']))
    $body .= "Email: ".$_POST['email']."\n\n";
if (!empty($_POST['phone']))
    $body .= "Phone: ".$_POST['phone']."\n\n";

此处与您如何将其添加到邮件功能相同。

当然还有其他的做事方式，在这两种做法中，我建议使用foreach - 循环，因为它的代码要少得多，而且代码更清晰，应该这样做同样的工作。如果它打印＆＃34;提交＆＃34;也可以添加一段跳过全局$_POST数组元素的代码。

您应该有一个语句，阻止每次有人直接访问此页面时运行脚本，例如if ($_POST['submit'] == 'submit')（其中submit是您的提交按钮的名称和值HTML表单）声明包装所有与邮件相关的代码。这样，邮件只会在提交表单后发送。

答案 2 :(得分：0)

您应该创建已接受密钥的白名单数组：

$whitelist = array('name', 'email', 'phone');

然后循环遍历数组：

foreach($whitelist as $key){
  if(isset($_POST[$key]) && $_POST[$key] != ''){
    $body .= ucfirst($key) . ": " . htmlspecialchars($_POST[$key], ENT_QUOTES) . "\n";
  }
}

foreach循环遍历数组，isset检查字段是否已设置，ucfirst通过大写第一个字符使电子邮件中的关键字显示，htmlspecialchars使用ENT_QUOTES标志可确保为电子邮件正确转换字符。

您应始终为此类型的循环创建白名单，不仅是出于安全目的，还因为您将循环遍历不必要或不相关的键，例如：

<button type="submit" name="submit" value="1">Submit</button>

您的电子邮件将会显示：

Submit: 1

这对接收者毫无意义。

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