PHP learning notes 7-JSON data operations, php learning notes 7-json_PHP tutorial

PHP learning Notes 7-JSON data operations, php learning Notes 7-JSON. PHP learning notes 7-JSON data operations, php learning notes 7-jsonJSON, full name is JavaScriptObjectNotation. It is based on JavaScript programming language ECMA-2623rdEdition-December1999 standard a PHP learning notes 7-JSON data operations, php learning notes 7-json

JSON, the 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 standard, mainly used to exchange data with the server. Similar to XML, it is an independent language and has great advantages in cross-platform data transmission.

Create a json. php file and perform the encode operation first:

1 // encode2 // Generate JSON format data 3 $ arr = array (1, 2, 3, 4, 5, 6, 7, 8, 9, 'hello', 'php '); 4 echo json_encode ($ arr); // json_encode: converts an object to json format data.

The result is [1, 2, 3, 4, 5, 6, 7, 8, 9, "Hello", "PHP"].

Then perform the decode operation:

1 // decode decoding 2 $ jsonStr = '{"h": "Hello", "w": "World", "0": [3, 2, 1]}'; 3 $ obj = json_decode ($ jsonStr); 4 echo $ obj-> h; // you can obtain the result by using the member access method.

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

Jsonjson, full name: JavaScript Object Notation. It is based on the JavaScript programming language ECMA-262 3rd Edition-December 1999 standard one...