Send WordPress emails with a template created in Maileroo

functions.php

<?php
// replace the template ID 123 with your own

add_filter('ssbm_add_template_data', function($payload, $atts) {
	if ($atts['message'] == strip_tags($payload['html'])) {
        $message = nl2br($atts['message']);
        unset($payload['html']);
        $payload['template_id'] = 123;
		$payload['template_data'] = json_encode(
			array('content' => $message)
		);     
    }
	return $payload;
}, 10, 2);

This WordPress filter hook can be used to send your plain text emails in WordPress, with a stylish HTML template created in Maileroo.
To use this hook you need to install the Maileroo WordPress plugin first.
Copy this code snippet into the functions.php file from your child theme.