解决php json_encode 出现的中文转码、乱码问题

 
  jsonEncodeWithCN(      ("/\\\u([0-9a-f]{4})/ie", "iconv('UCS-2BE', 'UTF-8', pack('H4', '$1'))", json_encode(  
  = ('a'=>'测试', b=>'hello' 
  jsonEncodeWithCN();