WordPress Send MailChimp Campaign - php

Question

Im trying to send a MailChimp campaign, from a cron job in a cpanel, in a php file.
The idea is to have a condition and if realized, send a MC campaign.
The test is if there is an unseen message in a certain mailbox with a certain subject. The test is done trough an imap connexion as you will see below.
The unseen email test is working with a cron job, no pb.
But when i add the MC connexion and campaign sending, it is stuck.
Here is the entire code i have tried to write (actually, i tried to use others pieces of code).
Please help if possible.
<?php
//needed for the MailChimp connection
require_once (‘wp-config.php’);
$SCUpdate = 0 ;
$mailbox = imap_open('{imap.server.com:993/imap/ssl}INBOX', 'email#domain.com', 'password');
$unseenMessages = imap_search($mailbox, 'UNSEEN');
if ($unseenMessages != 0) {
$MailHeaders = imap_headers( $unseenMessages );
$Subject = "Subject_Search_Name";
Foreach ($MailHeaders as $Subject) {
$SCUpdate = 1 ;
}
If ($SCUpdate = 1) {
//make the MailChimp connection
function mailchimp_api_request($endpoint,$type=‘POST’,$body = ‘’) {
$api_key = 'xxxxxxx';
$endpoint = ‘https://<dc>.api.mailchimp.com/3.0/’;
list(, $datacenter) = explode( ‘-’, $api_key );
$endpoint = str_replace( ‘<dc>’, $datacenter, $endpoint );
$url = $endpoint . $endpoint;
$request_args = array(
‘method’ => $type,
‘timeout’ => 20,
‘headers’ => array(
‘Content-Type’ => ‘application/json’,
‘Authorization’ => ‘apikey ‘ . $api_key
)
);
if ( $body ) {
$request_args[‘body’] = json_encode( $body );
}
$request = wp_remote_post( $url, $request_args );
$response = is_wp_error( $request ) ? false : json_decode( wp_remote_retrieve_body( $request ) );
return $response;
}
//link campaign to template
$campaign_id = 'xxxxxxx';
function set_mail_campaign_content( $campaign_id, $template_content ) {
$set_content = '';
$set_campaign_content = mailchimp_api_request( "campaigns/$campaign_id/content", 'PUT', $template_content );
if ( $set_campaign_content ) {
if ( ! empty( $set_campaign_content->html ) ) {
$set_content = true;
}
}
return $set_content ? true : false;
}
$list_id = "your-list-id";
$date = date('Y-m-d',strtotime(current_time('mysql')));
$title = "campaign-title";
$subject = "campaign-subject";
$campaign_id = null;
$campaign_id = create_mailchimp_campaign( $list_id, $subject, $title );
if($campaign_id == null){
exit(2);
}
$template_content = array(
'template' => array(
// The id of the template to use.
'id' => xxxxxxx,
)
);
$set_campaign_content = set_mail_campaign_content( $campaign_id, $template_content );
if($set_campaign_content == false){
exit(3);
}
// Schedule time
$time = time();
$schedule = mailchimp_api_request( "campaigns/$campaign_id/actions/schedule", 'POST', array('schedule_time' => $time) );
$campaign = mailchimp_api_request( "/campaigns/$campaign_id", 'GET', '' );
mail('myemail#test.com', 'Test Subject', 'Test Name');
$SCUpdate = 0 ;
}
}
if ($unseenMessages) {
imap_setflag_full( $mailbox, implode(',', $unseenMessages ), '\Seen');
imap_close( $mailbox );
}
?>