将我的 html 代码包含在发送网格 emai 的电子邮件内容中 - Include my html code inside content of email in sendgrid emai

我已经制作了单独的 html 文件并使用file_get_content使用它将其包含在我的内容部分中，但是当我收到电子邮件时，html 代码显示为文本，而不是 html 文件的 ouptut 应该是什么

<html>
<head>
</head>
<body>
<div>
<div class="popup-logo" style="width: 100px;">
<img src="logo.png" alt="jk" style="margin-left: 45%;width: 200px;height: 50px;"></div>
</div>
    <div id="popup" style="width: 100%;margin-left: auto;margin-right: auto;background: #FFFFFF;-moz-box-shadow: #64686e 0px 0px 3px 3px;-webkit-box-shadow: #64686e 0px 0px 3px 3px;margin-top: 1%;">
	
		<div class="search-col" style="border-bottom: 1px solid #e5e5e5;float: left;margin-bottom: 5px;padding: .2px;width: 100%;table, th, td {
    border: .5px solid silver;border-collapse: collapse;">
  
        
	<div class="select-style">
    	<div class="select-style-text" style="width: 100%;height: 67px;float: left;padding-left: 10px;">
                 <p style="color: #840107;font-family: Hind;font-size: 25px;font-weight: 600;text-align: left;margin-left: 40%;text-overflow: none;text-indent: 2em;">Dispatched Details</p>
				 
				 </div>
				  <div class="da" style="color:green;margin-left:85%;">
				 <?php 
				
				 $date = date('d-M-Y H:i:s');
				 echo "Date"."&nbsp;". $date;
				 ?>
				 </div>
     
</div>
 
     
    </div>
<div>
<div id="wer">
<h3 style="padding: 0.5px;padding-left: 5px;">Order Number:<?php echo $_SESSION['id'];?></h3>
<h3 style="padding: 0.5px;padding-left: 5px;">Vendor details:</h3>
<div id="wer" style="margin-left:0%;">
<table style="width: 100%;border: 1px solid silver;border-collapse: collapse;text-align: center;">
  <tr>
  <th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">VendorName</th>
    <th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Code</th>
    <th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Email</th>
	<th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Contact</th>
  </tr>
  <tr>
    <td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['vnm']?></td>
    <td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['vcd']?></td>
	<td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['vem']?></td>
	<td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['vcn']?></td>
  </tr>
 
  
</table>
</div>
<div id="wer" style="margin-top:3%;">
<h3 style="padding: 0.5px;padding-left: 5px;">Other Details:</h3>
<style>
</style>
<table style="width: 100%;border: 1px solid silver;border-collapse: collapse;text-align: center;">
  <tr>
    <th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Driver name</th>
    <th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Driver contact </th>
	<th style="border: 1px solid silver;border-collapse: collapse;text-align: center;">Vehicle Number</th>
  </tr>
  <tr>
    <td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['drivname']?></td>
	<td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['dcontact']?></td>
	<td style="border: 1px solid silver;border-collapse: collapse;text-align: center;"><?php echo $_SESSION['vnumber']?></td>
  </tr>
 
  
</table>
</div>
<?php session_destroy();?>
</div></div></div></body>
</html>

<?php
require '/sendgrid-php/vendor/autoload.php';
if(require("sendgrid-php/vendor/autoload.php"))
    {echo "path found";}
$from = new SendGrid'Email(null, 'k1@gmail.com');
$subject ='Order number is'; 
$to = new SendGrid'Email(null, 'k2@gmail.com');
$r=file_get_contents('ret.html');
$content = new SendGrid'Content("text/plain",$r);
$mail = new SendGrid'Mail($from, $subject, $to, $content);
$apiKey = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
$sg = new 'SendGrid($apiKey);
$response = $sg->client->mail()->send()->post($mail);
echo $response->statusCode();
echo $response->headers();
echo $response->body();
?>

您必须包含该文件，将其评估为 PHP 并将其捕获到变量中，而不是将未评估的内容存储在字符串中：

ob_start();
include("ret.html");
$r = ob_get_clean();
$content = new SendGrid'Content("text/html",$r);

顺便说一下，您应该考虑为该作业使用模板引擎。

据我所知，您的电子邮件以纯文本而不是 html 形式发送。这是因为您在创建 SendGrid 对象时将电子邮件类型设置为 text/plain。将其更改为text/html应该可以。替换此行

$content = new SendGrid'Content("text/plain",$r);

跟

$content = new SendGrid'Content("text/html",$r);