Use of JSON in php

Welcome to the Linux community forum and interact with 2 million technical staff to enter json_encode (). This function is mainly used to convert arrays and objects into json format. $ Arrarray (aa, bb, cc, dd, ee); echojson_encode ($ arr); json only accepts UTF-8 encoded characters, json_encode

Welcome to the Linux community forum and interact with 2 million technical staff> enter json_encode (). This function is mainly used to convert arrays and objects into json format. $ Arr = array ('A' = 'A', 'B' = 'B', 'C' = 'C', 'D' = 'D ', 'E' = 'E'); echo json_encode ($ arr); json only accepts UTF-8 encoded characters, json_encode

Welcome to the Linux community forum and interact with 2 million technicians>

Json_encode ()

This function is mainly used to convert arrays and objects to json format.

$ Arr = array ('A' => 'A', 'B' => 'B', 'C' = 'C', 'D' => 'D ', 'E' = 'E ');

Echo json_encode ($ arr );

Json only accepts UTF-8 encoded characters. The json_encode () parameter must be UTF-8 encoded.

　　

Class person

{

Public $ name;

Public $ age;

Public $ height;

Function _ construct ($ name, $ age, $ height)

{

$ This-> name = $ name;

$ This-> age = $ age;

$ This-> height = $ height;

}

}

$ Obj = new person ("zhangsan", 20,100 );

$ Foo_json = json_encode ($ obj );

Echo $ foo_json;

When the attribute in the class is a private variable, it is not output.

Json_decode ()

This function is used to convert json text to the corresponding PHP data structure.

$ Json = '{"a": "hello", "B": "world", "c": "zhangsan", "d": 20, "e ": 170 }';

Var_dump (json_decode ($ json ));

In general, json_decode () always returns a PHP Object.

Convert to an array:

$ Json = '{"a": "hello", "B": "world", "c": "zhangsan", "d": 20, "e ": 170 }';

Var_dump (json_decode ($ json, ture ));