Code for json format data conversion in php

This article mainly introduces the json format data conversion program in php. We use the json_decode () and json_encode () functions to perform operations conveniently.

This article mainly introduces the json format data conversion program in php. We use the json_decode () and json_encode () functions to perform operations conveniently.

The first step is to use the json_encode () function to convert the data into json data. the code is as follows:

2. // JSON format data is represented by arrays in php.
3. $ Arr = array (
4. 'Firstname' => iconv ('gb2312', 'utf-8', 'sincerity '),
5. 'Lastname' => iconv ('gb2312', 'utf-8', 'Do Not Disturb '),
6. 'Contact '=> array (
7. 'Email '=> 'fcwr @ phpfensi.com ',
8. 'Website' => 'http: // www.phpfensi.com ',
9. )
10. );
11. // Encode the array into JSON data format
12. $ Json_string = json_encode ($ arr );
13. // JSON format data can be directly output
14. Echo $ json_string;
15. ?>

This conversion function only supports UTF-8 format. if there is a Chinese character in the middle, you can use iconv or mb to convert it to the UTF-8 and then perform json_encode, so there will be no problem.

Step 2: parse the data and use a php json processing function json_decode (). The code is as follows:

2. // JSON format data is represented by arrays in php.
3. $ Arr = array (
4. 'Firstname' => iconv ('gb2312', 'utf-8', 'sincerity '),
5. 'Lastname' => iconv ('gb2312', 'utf-8', 'Do Not Disturb '),
6. 'Contact '=> array (
7. 'Email '=> 'fcwr @ phpfensi.com ',
8. 'Website' => 'http: // www.phpfensi.com ',
9. )
10. );
11. // Encode the array into JSON data format
12. $ Json_string = json_encode ($ arr );
13. // Decodes JSON data. the decoded data is not in JSON format and cannot be output directly using echo.
14. $ Obj = json_decode ($ json_string );
15. // Forcibly convert to array format
16. $ Arr = (array) $ obj;
17. // Call the data in the array
18. Echo iconv ('utf-8', 'gb2312', $ arr ['firstname']);
19. Echo'
    ';
20. // Output array structure
21. Print_r ($ arr );
22. ?>

Okay, the instance is here.