The "adapters.xml" file you attached is good for the Java Adapter (inprocess) but with your PHP Remote Adapter you should use something like this:
Code:
<?xml version="1.0"?>
<adapters_conf id="HELLOWORLD">
 
  <metadata_provider>
    <adapter_class>com.lightstreamer.adapters.metadata.LiteralBasedProvider</adapter_class>
  </metadata_provider>
 
  <data_provider>
    <adapter_class>com.lightstreamer.adapters.remote.data.NetworkedDataProvider</adapter_class>
      <param name="request_reply_port">7001</param>
      <param name="notify_port">7002</param>
      <param name="timeout">36000000</param>
  </data_provider>
 
</adapters_conf>