php获取用户所在城市，手机号归属地，搜索关键词

private function _phonecity($phone){
    $url = 'http://mobsec-dianhua.baidu.com/dianhua_api/open/location?tel='.$phone;
    $res = $this->_request($url, []);
    $tmp = json_decode($res, true);
    $city = $tmp['response'][$phone]['location'];
    return $city;
}

private function _ipcity($ip){
    $url = 'http://ip.taobao.com/service/getIpInfo.php?ip='.$ip;
    $res = $this->_request($url, []);
    $tmp = json_decode($res, true);
    $ip  = $tmp['data']['region'].'-'.$tmp['data']['city'];
    return $ip;
}

private function _search_word_from() {
    $referer = isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:'';
    if(strstr( $referer, 'baidu.com')){
        preg_match( "|baidu.+word=([^\\&]*)|is", $referer, $tmp );
        $keyword = urldecode( $tmp[1] );
        $from = '百度';
    }elseif(strstr( $referer, 'google.com') or strstr( $referer, 'google.cn')){ //谷歌
        preg_match( "|google.+q=([^\\&]*)|is", $referer, $tmp );
        $keyword = urldecode( $tmp[1] );
        $from = '谷歌';
    }elseif(strstr( $referer, 'so.com')){
        preg_match( "|so.+q=([^\\&]*)|is", $referer, $tmp );
        $keyword = urldecode( $tmp[1] );
        $from = '360'; 
    }elseif(strstr( $referer, 'sogou.com')){
        preg_match( "|sogou.com.+query=([^\\&]*)|is", $referer, $tmp );
        $keyword = urldecode( $tmp[1] );
        $from = '搜狗';   
    }elseif(strstr( $referer, 'soso.com')){
        preg_match( "|soso.com.+w=([^\\&]*)|is", $referer, $tmp );
        $keyword = urldecode( $tmp[1] );
        $from = '搜搜';
    }else {
        $keyword ='';
        $from = '';
    }
    return $keyword.'-'.$from;
}

private function _getip(){
  $ip=false;
  if(!empty($_SERVER["HTTP_CLIENT_IP"])){
    $ip = $_SERVER["HTTP_CLIENT_IP"];
  }
  if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
   $ips = explode (", ", $_SERVER['HTTP_X_FORWARDED_FOR']);
   if ($ip) { array_unshift($ips, $ip); $ip = FALSE; }
   for ($i = 0; $i < count($ips); $i++) {
    if (!eregi ("^(10│172.16│192.168).", $ips[$i])) {
     $ip = $ips[$i];
     break;
    }
   }
  }
  return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);
}

private function _request($url){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_URL, $url);
    $response = curl_exec($ch);
    return $response;
}