Probleme mit db lock

Hi there,

i have execute an php script which as locked my entire db access.
here is my script:

if ($_SESSION["loginUsername"])
$query = "LOCK TABLES inventory READ, items WRITE";
else
$query = "LOCK TABLES inventory READ,
orders WRITE,
items WRITE";


in fact this query should only lock this tables not the entire access.

if try manually to unlock via pma i don´t get access to this db!


what can i do now?