PHP接入微信H5支付的方法示例(2)

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
    $return = curl_exec($ch);
    curl_close($ch);
    return $return;

<xml><return_code><![CDATA[SUCCESS]]></return_code>
<return_msg><![CDATA[OK]]></return_msg>
<appid><![CDATA[wxdded766660f9b840]]></appid>
<mch_id><![CDATA[1516216351]]></mch_id>
<device_info><![CDATA[100]]></device_info>
<nonce_str><![CDATA[2DUN2i2pGnlC6vDi]]></nonce_str>
<sign><![CDATA[95CEA831D598299097A32D8FEEC6BDEF]]></sign>
<result_code><![CDATA[SUCCESS]]></result_code>
<prepay_id><![CDATA[wx22194530678545eb3713f2f10724143329]]></prepay_id>
<trade_type><![CDATA[MWEB]]></trade_type>
<mweb_url><![CDATA[https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=wx22194530678545eb3713f2f10724143329&package=87106983]]></mweb_url>

  /**
   * 获取微信支付中间页deepLink参数
   * @param string $url 微信返回的mweb_url
   * @param string $ip 用户端IP
   */
  public function getDeeplink(string $url, string $ip)
  {
    $headers = array("X-FORWARDED-FOR:$ip", "CLIENT-IP:$ip");
    ob_start();
    $ch = curl_init();
    curl_setopt ($ch, CURLOPT_URL, $url);
    curl_setopt ($ch, CURLOPT_HTTPHEADER , $headers );
    curl_setopt ($ch, CURLOPT_REFERER, "pay.o9di.cn");
    curl_setopt( $ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Linux; Android 6.0.1; OPPO R11s Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36');
    curl_exec($ch);
    curl_close ($ch);
    $out = ob_get_contents();
    ob_clean();
    $a = preg_match('/weixin:\/\/wap.*/',$out, $str);
    if ($a) {
      return substr($str[0], 0, strlen($str[0])-1);
    } else {
      return '';
    }
  }