Sendgrid Azure PHP - php

Question

I am a newbie to php, azure, and sendgrid.
here is some code I found that I am trying to use for the html form.
<!-- BEGINNING OF CONTACT FORM -->
<div class="section-page-landing" id="contact">
<div class="inner-section">
<div class="contain">
<center><h2>Contact Me</h2>
<form class="contact" action="a_test_mailer_processor.php" method="post">
<p>Name:</p> <!-- Can choose to customize form.html inputs starting here as needed, but be sure to reference any changes in mailer.php post fields-->
<input type="text" name="name" />
<p>E-mail:</p>
<input type="text" name="email" />
<p>Subject:</p>
<input type="text" name="subject" />
<p>Message:</p>
<textarea name="message" syle="width: 45%; text-align: center;">Please leave a short message here</textarea></p>
<input class="send" type="submit" value="Send"> <!-- Send button-->
</form></center>
</div>
</div>
</div>
<!--end contact form-->
Here is the PHP I am trying to use
I updated the code as follows, swapping out my credentials and email address. No errors but still not working for me. Is there something else I can test?
<?php
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
var_dump(function_exists('curl_version'));
$url = 'https://api.sendgrid.com/';
$user = 'MYSENDGRIDUSERNAME';
$pass = 'MYSENDGRIDPASSWORD';
$params = array(
'api_user' => $user,
'api_key' => $pass,
'to' => 'MYEMAILADDRESS',
'subject' => 'testing from curl',
'html' => 'testing body',
'text' => 'testing body',
'from' => 'MYEMAILADDRESS',
);
$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);
// Tell PHP not to use SSLv3 (instead opting for TLS)
curl_setopt($session, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
// obtain response
$response = curl_exec($session);
curl_close($session);
// print everything out
print_r($response);
?>
And here are the errors I am getting.
bool(true)
Notice: Undefined variable: curl in D:\home\site\wwwroot\a_test_mailer_processor.php on line 36 Warning: curl_setopt() expects parameter 1 to be resource, null given in D:\home\site\wwwroot\a_test_mailer_processor.php on line 36
I tried simply removing line 36, curl_setopt($curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2); and the errors stopped but the form still did not get sent/received. Let me know what I am doing wrong.

Answer 1

As you hadn’t defined $curl before setting parameters using curl_setopt, and here is a code sample on SendGrid code examples page, please try it:
<?php
$url = 'https://api.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);
// Tell PHP not to use SSLv3 (instead opting for TLS)
curl_setopt($session, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1_2);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
// obtain response
$response = curl_exec($session);
curl_close($session);
// print everything out
print_r($response);
?>
--Update--
If you get error message as not defined constant CURL_SSLVERSION_TLSv1_2, we can directly set integer variable to CURLOPT_SSLVERSION.
We can find details in http://php.net/manual/en/function.curl-setopt.php:
One of CURL_SSLVERSION_DEFAULT (0), CURL_SSLVERSION_TLSv1 (1), CURL_SSLVERSION_SSLv2 (2), CURL_SSLVERSION_SSLv3 (3), CURL_SSLVERSION_TLSv1_0 (4), CURL_SSLVERSION_TLSv1_1 (5) or CURL_SSLVERSION_TLSv1_2 (6).
set as: curl_setopt($session, CURLOPT_SSLVERSION, 6);
And I have to set an additional option :
curl_setopt($session, CURLOPT_SSL_VERIFYPEER, false);
so that I can succeed to set my request to SendGrid Server.