Sphinx Fail

<?php
    require("sphinxapi.php");

    if(isset($_POST)){
        $searchTerm = $_POST['searchterm'];
        $sphinx = new SphinxClient();
        $sphinx->SetServer('localhost', 9312);
        $sphinx->SetMatchMode(SPH_MATCH_ALL);
        $sphinx->SetArrayResult(true);

        $results = $sphinx->Query($searchTerm, 'movieindex');

        echo $sphinx->GetLastError();
        echo $sphinx->GetLastWarning();

        foreach($results['matches'] as $id)
        {
            echo $id;
        }
    }
?>