PHP SoapClient SOAP-ERROR：解析模式：元素具有'type'属性和子类型

Question

我正在使用PHP SoapClient来调用SOAP Web服务。下面是我实例化SoapClient实例的方法。

$client = new SoapClient('customer.wsdl',array("soap_version" => SOAP_1_1,"trace" => 1));

我面临的问题是，无论何时执行上述行，都会引发异常＆＃34; SOAP-ERROR：解析架构：元素同时具有＆＃39; type＆＃39;属性和子类型＆＃34;。因此，$ client变量始终保持NULL值，即未实例化。

以下是我认为导致此问题的XSD架构。

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:db="http://xmlns.oracle.com/apps/custom/soaprovider/plsql/xx_get_cust_pkg/get_customer/" targetNamespace="http://xmlns.oracle.com/apps/custom/soaprovider/plsql/xx_get_cust_pkg/get_customer/" elementFormDefault="qualified">
   <element name="InputParameters">
      <complexType>
         <sequence>
            <element name="P_CUSTOMER_NAME" type="string" db:index="1" db:type="VARCHAR2" minOccurs="0" nillable="true" />
         </sequence>
      </complexType>
   </element>
   <element name="OutputParameters">
      <complexType>
         <sequence>
            <element name="X_MSG_STATUS" type="string" db:index="2" db:type="VARCHAR2" minOccurs="0" nillable="true" />
            <element name="X_MSG_DATA" type="string" db:index="3" db:type="VARCHAR2" minOccurs="0" nillable="true" />
            <element name="X_CUST" type="db:APPS.XX_GET_CUST_PKG_X3326749X1X4" db:index="4" db:type="Array" minOccurs="0" nillable="true" />
         </sequence>
      </complexType>
   </element>
   <complexType name="APPS.XX_GET_CUST_PKG_X3326749X1X5">
      <sequence>
         <element name="CUSTOMER_NAME" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="PARTY_NUMBER" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="ACCOUNT_NUMBER" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="ACCOUNT_DESC" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="BILL_TO_ADDRESS" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="SHIP_TO_ADDRESS" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
         <element name="PRICE_LIST" db:type="VARCHAR2" minOccurs="0" nillable="true">
            <simpleType>
               <restriction base="string">
                  <maxLength value="240" />
               </restriction>
            </simpleType>
         </element>
      </sequence>
   </complexType>
   <complexType name="APPS.XX_GET_CUST_PKG_X3326749X1X4">
      <sequence>
         <element name="X_CUST_ITEM" type="db:APPS.XX_GET_CUST_PKG_X3326749X1X5" db:type="Struct" minOccurs="0" maxOccurs="unbounded" nillable="true" />
      </sequence>
   </complexType>
</schema>

我目前运行的PHP版本是 5.4.30

编辑（2015年3月13日）

针对同一问题，PHP bug跟踪器上记录了一个错误https://bugs.php.net/bug.php?id=68576，其状态仍然是打开的。除了修改PHP源代码之外，请告知是否还有其他解决方法可以解决问题。