There are two field types which can generate an array. These are the multi-select list and the database quiry (multi-select) field type.

First we check IF there is an array output for the field you are using:

{if is_array($FIELDNAME_VALUES)}
{/if}

Next we render the values in a 'repeatable' output using the foreach command: Note, the key ($k) corresponds to the multi-select list value and the item ($i) to the multi-select list text.

Example: The code below will generate a comma seperated list (with full stop at the end) for selected value from a multi-select list whereby the values correspond with the Joomla article IDs and JCE mediabox plugin is used to open them in a popup. The link text is the text shown in the multi-select list.

 {if is_array($FIELDNAME_VALUES)}
{foreach from=$FIELDNAME_VALUES key=k item=i name=whatever}
 < a rel="nofollow" href="/documentation/f2c-smarty-code-snippets?id={$k}:&catid=86" class="jcepopup">{$i}< /a>{if $smarty.foreach.whatever.last}.{else}, {/if}
{/foreach}
{/if}

Condition for value in array

It is possible to have conditions depending if a specific value is present in an array. Please note that if conditions are combined using elseif as shown below the last TRUE condition will show.

{if is_array($FIELDNAME_VALUES)}
{if in_array('value 1', $FIELDNAME_VALUES)}
value 1 was in the array
{elseif in_array('value 2', $FIELDNAME_VALUES)}
value 2 was in the array .... and maybe value 1
{else}
neither value 1 nor value 2 are in the array
{/if}
{/if}