Events Manager Pro - Add attending alert on single event page if attending

functions.php

<?php
function highlight_attending_single(){
	global $post,$current_user;
	   	
	$attendies = get_post_meta($post->ID, '_eventrocket_attendance', true );
	$attending = false;
	if(is_array($attendies)){
			foreach($attendies as $key=>$value){
					
					if($key == $current_user->ID && $value == 1){
						$attending =true;
					}
				
			}
			
			
	}
	
	if($attending == true){
		echo '<div style="background-color:#dbffcf;color:green;padding:15px;margin:15px;font-size:1.3em;text-align:center">You are attending this event</div>';
	}
	
}
add_action('tribe_events_single_event_before_the_content', 'highlight_attending_single');


?>