PHP Learning notes 7-json data manipulation, PHP learning notes 7-json_php Tutorials

PHP Learning notes 7-json data manipulation, PHP learning notes 7-json

JSON, the full name is JavaScript Object Notation. It is a lightweight data interchange format based on the JavaScript programming language ECMA-262 3rd Edition-december 1999 standard, mainly used for exchanging data with the server. Similar to XML, its independent language has a great advantage in cross-platform data transmission.

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

1 // encode 2 //Generate JSON-formatted data 3 $arr Array (1,2,3,4,5,6,7,8,9, ' Hello ', ' PHP '); 4 echo json_encode ($arr); // Json_encode: Converting an object to JSON-formatted data

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

Again to do decode operation:

1 // Decode decoding 2 $jsonStr = ' {' h ': ' Hello ', ' W ': ' World ', ' 0 ': [3,2,1]} '; 3 $obj = Json_decode ($jsonStr); 4 Echo $obj->h; // results can be obtained by using the member access method

Knowing the simple way to use, you can try to catch the API data, such as the weather ...

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