<?php
function r_join($glue, $field, $value_type = 'view') {
foreach($field as $field_value) {
$values[] = $field_value[$value_type];
}
print join($glue, $values);
}
?>
Have to see if http://api.drupal.org/api/function/drupal_render/7 makes this fully or partially unnecessary in Drupal 7.
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