class User { public $id; public $name; public $age; public $sex; } //汉字转码 function decodeUnicode($str){ return preg_replace_callback('/\\\\u([0-9a-f]{4})/i', create_function( '$matches', 'return mb_convert_encoding(pack("H*", $matches[1]), "UTF-8", "UCS-2BE");' ), $str); } $data = array(); // 创建连接 $con =mysqli_connect($servername, $username, $password, $dbname); // 检测连接 $sql = "SELECT * FROM `user` WHERE 1"; $result = mysqli_query($con,$sql); if($result){ while ($row=mysqli_fetch_array($result,MYSQL_ASSOC)){ $user = new User(); $user->id = $row["id"]; $user->name = $row["name"]; $user->age = $row["age"]; $user->sex = $row["sex"]; $data[]=$user; } //打印编码后的json字符串 $json = json_encode($data); echo decodeUnicode($json); }else{ echo "查询失败"; }