Grabs a processed Lexicon Entry.
This may also be a modLexicon object as well, if the Lexicon has been loaded. PHP supports having objects and methods with the same name.
string lexicon (string $key, [array $params = array()])
Output the translation of the 'welcome_message' Entry, and sets the 'name' Placeholder in it.
echo $modx->lexicon('welcome_message',array('name' => 'John'));
The above example assumes a message that contains a placeholder for "name", e.g.
$_lang['welcome_message'] = 'Hello [[+name]]! How are you today?';