I've try that be it doesn't work
static $db = array(
'Date' => 'Date',
'ArticleTitle' => 'Text',
'Hyperlink' => 'Text',
'PublicationName' => 'Text',
'Vol_Issue' => 'Text',
'PublicationOrigin' => 'Text',
'Language' => 'Text',
'ArticleType' => 'Text',
'ProjectAward' => 'Text',
'RelatedOffice' => 'Text',
'ProjectCity' => 'Text',
'Person' => 'Text',
'ClientPerson' => 'Text',
'ThirdParty' => 'Text',
'ExternalHyperlink' => 'Varchar(255)',
'Filename' => 'Varchar(255)',
);
<strong><a class="tooltip" href="$ExternalHyperlink" rel="#note_$ID">$Title.XML</a></strong>
As you can see I have two links, the Hyperlink works fine, but when I use ExternalHyperlink nothing is output. All the other fields work fine too