尝试在我的SOAP服务器中使用该函数时出现此错误。我不知道我在做什么错，我看过大多数关于此错误的帖子，没有运气。我对PHP和SOAP极为陌生，因此对它的外观感到抱歉

这是我的PHP函数和SOAP服务器设置：

function getProductsByPrice($category,$price) {

    $conn = mysqli_connect('localhost','root','','my_guitar_shop1');

    if (!$conn) {
        die("Connection failed: " . $conn->connect_error);
    }

    $sql = "SELECT * FROM products WHERE categoryID = '$category' AND 
    listPrice < '$price'";
    $result = mysqli_query($conn,$sql);
    $rows = array();

    if (mysqli_num_rows($result) > 0) {
        while ($r = mysqli_fetch_assoc($result)) {

            array_push($rows,$r);
        }
        return json_encode($rows);
    } else {
        echo "No data";
    }
     }

       ini_set("soap.wsdl_cache_enabled","0");
       $server = new SoapServer("http://localhost/SOAPserverTest/LOI.wsdl");
       $server->addFunction(array("getProductsByPrice","showProductDetails","showTable"));
       $server->handle();
?>

这就是我使用方法的方式

<?php
    $category = 3;
    $price = 400;

    $client = new SoapClient("http://localhost/SOAPserverTest/LOI.wsdl");
    $response1 = $client->getProductsByPrice($category,$price);
    $result1 = json_encode($response1,TRUE);

    print $result1;
?>

当我访问客户端页面时，出现此错误：

  

致命错误：未捕获的SoapFault异常：[SOAP-ENV：Server]函数getProductsByPrice（）的参数太少，传递了1个参数，在C：\ xampp \ htdocs \ finalSOAPClient \ model \ GetByPrice.php：7中恰好期望2个参数跟踪：＃0 C：\ xampp \ htdocs \ finalSOAPClient \ model \ GetByPrice.php（7）：SoapClient-> __ call（'getProductsByPr ...'，Array）＃1 {main}抛出C：\ xampp \ htdocs \第7行的finalSOAPClient \ model \ GetByPrice.php