I would do something like this with the original code I posted
<?php
if (get_field('event_session')) {
while (has_sub_field('event_session')) {
?>
<strong><?php the_sub_field('session_start'); ?></strong>
<?php the_sub_field('session_title'); ?><br />
<!-- Start of speaker list -->
<div class="speaker_list">
<?php
$sessionspeakers = get_sub_field('session_speaker');
if ($sessionspeakers) {
$count = 0;
echo 'Speaker';
if (count($sessionspeakers) > 1) {
echo 's';
}
echo ': ';
foreach ($sessionspeakers as $speaker) {
$count++;
$speakerlink = get_permalink($speaker->ID);
$speakerurltext = get_post_meta($speaker->ID, 'speakerurltext', true);
// if 'speakerurltext' is an acf field you could use
// $speakerurltext = get_field('speakerurltext', $speaker->ID);
if ($count > 1) {
echo ', ';
}
echo $speaker->post_title;
} // end foreach speakers
} // end if speakers
?>
</div>
<?php
} // end while has_sub_field
} // end if get_field
?>
