Visenze卷曲请求错误

Question

这是我用于visenze的卷曲请求：

    <?php
$accessKey = '*********';
$secretKey = '*********';


    $lengthad = intval($_POST['lengtha'])-1;
    $lengthap = intval($_POST['lengtha'])+1;
    // Initialize the cURL request to ViSenze
    $ch = curl_init('http://visearch.visenze.com/uploadsearch');
    //echo $ch;
    // We want to RETURN the result not output it
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    // Set up the basic authentication settings
    curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
    curl_setopt($ch, CURLOPT_USERPWD, $accessKey.":".$secretKey);

    // Define the post fields
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
        'im_url' => $_POST['im_url'],
        'score'    => $_POST['score'],
        /*'score_min'    => $_POST['score_min'],*/
        'get_all_fl'    => $_POST['get_all_fl'],
        'fl' => 'im_name',
        'fl' => 'im_url',
        'fl' =>  'category',
        'fq'=> 'category:'.intval($_POST['cat']),
        'fq'=> 'lengtha:'.$lengthad.','.$lengthap
    ]);

    //echo $ch;
    //exit;
    // Do the request
    $result = curl_exec($ch);
    curl_close($ch);

    // Output the results
    header('Content-Type: application/json');
    echo  $result;
    exit;


/*echo 'Nothing posted to this script.';
exit;*/
?>

这不能给我正确的结果。但是，当我检查visenze仪表板时，我得到了正确的结果。我想在形成请求时fq参数有问题。