mailgun send email to multiple users - php

Question

i have the following mailgun.php file:
define('MAILGUN_URL', 'https://api.eu.mailgun.net/v3/my_domain');
define('MAILGUN_KEY', 'xxxxxxxxx');
function sendmailbymailgun($to,$toname,$mailfromnane,$mailfrom,$subject,$html,$text,$tag,$replyto){
$array_data = array(
'from'=> $mailfromnane .'<'.$mailfrom.'>',
'to'=>$toname.'<'.$to.'>',
'subject'=>$subject,
'html'=>$html,
'text'=>$text,
'o:tracking'=>'yes',
'o:tracking-clicks'=>'yes',
'o:tracking-opens'=>'yes',
'o:tag'=>$tag,
'h:Reply-To'=>$replyto
);
$session = curl_init(MAILGUN_URL.'/messages');
curl_setopt($session, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($session, CURLOPT_USERPWD, 'api:'.MAILGUN_KEY);
curl_setopt($session, CURLOPT_POST, true);
curl_setopt($session, CURLOPT_POSTFIELDS, $array_data);
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_ENCODING, 'UTF-8');
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
curl_setopt($session, CURLOPT_SSL_VERIFYPEER, false);
$response = curl_exec($session);
curl_close($session);
$results = json_decode($response, true);
return $results;
}
I am trying to send a notification email to end users with the following code:
$eml = email address variable
$usrn = user name
$htm = html text generated from mailtext.php with displaytext function
$cust_orderid = parameter,not really important in this case
if ((strlen($eml)>5)&&(isset($eml))&&(!is_null($eml))) {
include('./mailtext.php');
$htm = displaytext($cust_orderid);
require_once('./mailgun.php');
sendmailbymailgun($eml,$usrn,'NOTIFICATIONS','notify#mydomain.com','NOTIFICATION SUBJECT',$htm,'','','');
}
everything works fine, until i have in $eml field multiple email addresses separated with comma.
then i got the following error message:
'to' parameter is not a valid address. please check documentation
i checked the documentation and it tells, that i can have multiple email addresses separated by comma. reference:
mailgun API documentation
some ideas how to solve this problem?
thanks in advance

Answer 1

So after a suggestion of #Igor Ilic i modified the mailgun.php like this:
<?
define('MAILGUN_URL', 'https://api.eu.mailgun.net/v3/mydomain');
define('MAILGUN_KEY', 'xxxxxxxxxxx');
function sendmailbymailgun($to,$toname,$mailfromnane,$mailfrom,$subject,$html,$text,$tag,$replyto){
$array_data = array(
'from'=> $mailfromnane .'<'.$mailfrom.'>',
'to'=> $to,
'subject'=>$subject,
'html'=>$html,
'text'=>$text,
'o:tracking'=>'yes',
'o:tracking-clicks'=>'yes',
'o:tracking-opens'=>'yes',
'o:tag'=>$tag,
'h:Reply-To'=>$replyto
);
$session = curl_init(MAILGUN_URL.'/messages');
curl_setopt($session, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($session, CURLOPT_USERPWD, 'api:'.MAILGUN_KEY);
curl_setopt($session, CURLOPT_POST, true);
curl_setopt($session, CURLOPT_POSTFIELDS, $array_data);
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_ENCODING, 'UTF-8');
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
curl_setopt($session, CURLOPT_SSL_VERIFYPEER, false);
$response = curl_exec($session);
curl_close($session);
$results = json_decode($response, true);
return $results;
}
?>
the only change is :
'to'=> $to,
instead of:
'to'=>$toname.'<'.$to.'>',
now i am simply ignoring the < > part of the email sending - it's not so pretty with the display name/email address in the email header, but i don't care, it works, even when the email address $eml parameter looks dirty like this: 'email1#gmail.com,,,email2#yahoo.com,,email3#office.com,,'
thanks for the great idea,
problem solved