php中json_encode中文编码问题

1 <?php
2 class myClass {
3   public$item1=1;
4   public$item2='中文';
5
6   function to_json() {
7     //url编码,避免json_encode将中文转为unicode
8     $this->item2 =urlencode($this->item2);
9     $str_json= json_encode($this);
10     //url解码,转完json后将各属性返回,确保对象属性不变
11     $this->item2 =urldecode($this->item2);
12     returnurldecode($str_json);
13 }
14 }
15
16 $c=new myClass();
17 echo json_encode($c);
18 echo'<br/>';
19 echo$c->to_json();
20 echo'<br/>';
21 echo json_encode($c);
22 echo'<br/>';
23 echo json_encode('胥');
24 ?>
php中json_encode中文编码问题

程序输出结果:

{"item1":1,"item2":"\u4e2d\u6587"}
{"item1":1,"item2":"中文"}
{"item1":1,"item2":"\u4e2d\u6587"}
"\u80e5"
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