PHP提交XML到接口失败。

public function NewBusinessSubmission() {
$data = "<?xml version='1.0' encoding='UTF-8'?>
<TXLife>
  <UserAuthRequest>
    <UserLoginName>Name</UserLoginName>
    <UserPswd>
      <Pswd>Pswd</Pswd>
    </UserPswd>
  </UserAuthRequest>
  <TXLifeRequest>
    <TransRefGUID>635306765673272986</TransRefGUID>
    <TransType tc='103'>103</TransType>
    <TransExeDate>2014-03-17</TransExeDate>
    <TransExeTime>18:07:35</TransExeTime>
    <OLifE>
      <Holding id='Holding_1'>
        <Policy>
          <ProductCode>CYX220_00</ProductCode>
          <EffDate>2014-03-29 06:05:00</EffDate>
          <Life>
            <FaceUnits>1</FaceUnits>
            <OLifEExtension VendorCode='10'>
              <FlightNumber>CZ6250</FlightNumber>
              <FlightTime>2014-03-29 18:05:00</FlightTime>
              <NeedSMS>T</NeedSMS>
            </OLifEExtension>
          </Life>
        </Policy>
      </Holding>
      <Party id='Party_1'>
        <FullName>test</FullName>
        <GovtID>110108196703025474</GovtID>
        <GovtIDTC tc='1'>1</GovtIDTC>
        <Person>
          <Gender tc='1'>1</Gender>
          <BirthDate>1967-03-02</BirthDate>
        </Person>
        <Phone>
          <PhoneTypeCode tc='12'>Mobile</PhoneTypeCode>
          <DialNumber>13000000000</DialNumber>
        </Phone>
      </Party>
      <Party id='Party_2'>
        <FullName>test</FullName>
        <GovtID>110108196703025474</GovtID>
        <GovtIDTC tc='1'>1</GovtIDTC>
        <Person>
          <Gender tc='1'>1</Gender>
          <BirthDate>1967-03-02</BirthDate>
        </Person>
        <Phone>
          <PhoneTypeCode tc='12'>Mobile</PhoneTypeCode>
          <DialNumber>13000000000</DialNumber>
        </Phone>
      </Party>
      <Relation RelatedObjectID='Party_1' OriginatingObjectID='Holding_1' id='Relation_1'>
        <OriginatingObjectType tc='4'>Holding</OriginatingObjectType>
        <RelatedObjectType tc='6'>Party</RelatedObjectType>
        <RelationRoleCode tc='8'>Owner</RelationRoleCode>
      </Relation>
      <Relation RelatedObjectID='Party_2' OriginatingObjectID='Holding_1' id='Relation_2'>
        <OriginatingObjectType tc='4'>Holding</OriginatingObjectType>
        <RelatedObjectType tc='6'>Party</RelatedObjectType>
        <RelationRoleCode tc='32'>Insured</RelationRoleCode>
      </Relation>
      <Relation RelatedObjectID='Party_2' OriginatingObjectID='Party_1' id='Relation_3'>
        <OriginatingObjectType tc='6'>Party</OriginatingObjectType>
        <RelatedObjectType tc='6'>Party</RelatedObjectType>
        <RelationRoleCode tc='168'>Self</RelationRoleCode>
      </Relation>
    </OLifE>
    <OLifEExtension>
      <PartnerCode>PartnerCode</PartnerCode>
    </OLifEExtension>
  </TXLifeRequest>
</TXLife>";
//提交参数获取信息
$url = 'http://ur'; //测试地址
$header[] = "Content-type: text/xml";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER, 0); //定义是否显示状态头 1：显示 ； 0：不显示
curl_setopt($ch, CURLOPT_HTTPHEADER, $header); //定义请求类型
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data); //定义提交的数据，这里是XML文件
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch); var_dump($response); }代码大概是这样的，但貌似提交不了，接口也说是没收到请求，求助！