php jsonp接口

//jsonp回调

$callback = isset($_GET['callback']) ? trim($_GET['callback']) : ''; //jsonp回调参数，必需
    $cgc_kanjia_zhuli_rec = new cgc_kanjia_zhuli_rec();
    $recmember = pdo_fetchall("SELECT * FROM " . tablename('cgc_kanjia_zhuli_member') . " WHERE mobile='" . $_GPC['mobile'] . "'");
    foreach ($recmember as $k => $v) {
      $con = " a.uniacid = $uniacid and a.openid = '{$v['openid']}' order by a.id desc";
      $sql = "SELECT ... WHERE $con";
      $rec_list[] = pdo_fetchall($sql);
    }
    $result = array();
    foreach ($rec_list as $k => $v) {
        $result = array_merge($result,$v);
    }
    
    $tmp= json_encode($result); //json 数据
    echo $callback . '(' . $tmp .')';  //返回格式，必需