Problem with setting a custom header using PHP

See more:

PHP

mail

I am using phpmailer for sending emails, but I want to make a custom header for my compaign, by adding a textarea field that contain any custom header here is my code but i dont know where is the problem it not working i dont see my custom header in mail full header :

$headers = [];
                             foreach (preg_split('/[\r\n]+/', $_POST['customHeader']) as $line) {

                                 list($name, $value) = explode(': ', $line, 2);

                                   $headers[$name] = $value;
                             }

                           }
                           for ($hh=0; $hh < $headers.count; $hh++) {
                              $PHPMailer->addCustomHeader($name,$headers[$name]);
                           }

what can i do please , thanks in advance.

What I have tried:

i tried this code :

$headers = [];
                             foreach (preg_split('/[\r\n]+/', $_POST['customHeader']) as $line) {

                                 list($name, $value) = explode(': ', $line, 2);

                                   $headers[$name] = $value;
                             }

                           }
                           for ($hh=0; $hh < $headers.count; $hh++) {
                              $PHPMailer->addCustomHeader($name,$headers[$name]);
                           }