Operation instructions of JSON data in PHP

This article mainly explains "JSON data operation instructions in PHP". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor to take you to learn the "JSON data operation instructions in PHP"!

JSON, full name is JavaScript Object Notation. It is a lightweight data exchange format based on the JavaScript programming language ECMA-262 3rd Edition-December 1999, which is mainly used to exchange data with the server. Similar to XML, it is independent of language and has great advantages in cross-platform data transmission.

To create a new file json.php, do the encode operation first:

/ / encode / / generate data in JSON format $arr = array (1, arr 2, 3, 4, 5, 6, 7, 8, 9); echo json_encode ($arr); / / json_encode: converts an object into PHP format data

The result is [1, Hello, 3, 4, 5, 6, 7, 8, 9, "Hello", "PHP"]

Then do the decode operation:

/ / decode decode $jsonStr ='{"h": "Hello", "w": "World", "0": [3Jing 2je 1]}'; $obj = json_decode ($jsonStr); echo $obj- > hbank / the result can be obtained by using the member visit method.

After knowing the simple way to use it, you can try to capture API data, such as the weather.

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