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Editorial Team
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Asked: 2026-06-01T15:46:27+00:00

I’d like to use Sendgrid WebAPI preferably without SMTP or Swiftmailer using the code

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I’d like to use Sendgrid WebAPI preferably without SMTP or Swiftmailer using the code below. Is it possibly to pass an entire dynamic webpage to the ‘html’ $params array without creating a long string variable and needing to escape every quote and echo each variable? Each email varies significantly so Sendgrid’s template/mailmerge options will not work for me. Thanks!

Here’s a simple html example (mine has much more dynamic content):

<html>
  <head></head>
  <body>
    <p>Hi I'm <?php echo $name; ?>!<br>
       <span style="color: #999999; font-size: 11px;">How are you?</span><br>
    </p>
  </body>
</html>

$url = 'http://sendgrid.com/';
$user = 'USERNAME';
$pass = 'PASSWORD'; 

$params = array(
    'api_user'  => $user,
    'api_key'   => $pass,
    'to'        => 'example3@sendgrid.com',
    'subject'   => 'testing from curl',
    'html'      => 'testing body',
    'text'      => 'testing body',
    'from'      => 'example@sendgrid.com',
  );


$request =  $url.'api/mail.send.json';

// Generate curl request
$session = curl_init($request);
// Tell curl to use HTTP POST
curl_setopt ($session, CURLOPT_POST, true);
// Tell curl that this is the body of the POST
curl_setopt ($session, CURLOPT_POSTFIELDS, $params);
// Tell curl not to return headers, but do return the response
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);

// obtain response
$response = curl_exec($session);
curl_close($session);

// print everything out
print_r($response);
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1 Answer

  1. Editorial Team

    The best way to generate the HTML you need would be to use a template engine like Smarty. So in your example, somewhere above actually sending the email, you would do something like:

    include('Smarty.class.php');

$smarty = new Smarty;
$smarty->assign('name', 'Swift');
$smarty->assign('name', 'SendGrid');
$smarty->assign('address', '123 Broadway');

// Store it in a variable
$emailBody = $smarty->fetch('some_dynamic_template.tpl');

    And then when you actually need to send the email with the new dynamic HTML body:

    ....

$params = array(
    'api_user'  => $user,
    'api_key'   => $pass,
    'to'        => 'example3@sendgrid.com',
    'subject'   => 'testing from curl',
    'html'      => $emailBody,
    'from'      => 'example@sendgrid.com',
);

....
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