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Please add to documentation as an example.
I wanted the title to be field_company and then field_person_name, separated by "/".
The 1st field is mandatory, the 2nd is sometimes empty.
That's the PHP code I've come up with, to put in the content type's auto-nodetitle definitions tab (when the PHP checkbox is checked).
$language = $node->language; if (!in_array($language, $node->field_company)) $language = LANGUAGE_NONE; $title = $node->field_company[$language]['value']; $pname = ''; if (count ($node->field_person_name[$language]) ) : $pname = $node->field_person_name[$language]['value']; endif; if (strlen($pname) > 0): return $title . ' / ' . $pname; else: return $title; endif;