ard-Database-Connection.html"><abbr title="\Lwt\Interface\Database_Wizard\Database_Connection">Database_Connection</abbr></a>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$conn</span></span><span class="phpdocumentor-signature__argument"><span>[</span><span>, </span><span class="phpdocumentor-signature__argument__return-type">string|null&nbsp;</span><span class="phpdocumentor-signature__argument__name">$error_message</span><span> = </span><span class="phpdocumentor-signature__argument__