Php return json data function example

The json_encode () function is a function in php that can convert arrays to json format. However, the json_encode function is not problematic in English, if there is any problem with the Chinese character or encoding, it will become null after the Chinese character is converted... the json_encode () function is a function in php that can convert arrays to json format. However, the json_encode function is not problematic in English, if there is any problem with the Chinese character or encoding, it will become null after the Chinese character is converted, next, I will introduce the php return json data application and some solutions to the conversion problems.

Json_encode () function usage.

echo json_encode(array('a'=>'bbbb','c'=>'ddddd');

In this way, a standard json format data is generated.

 '; $ Users [$ I] = $ row; $ I ++;} echo json_encode (array ('datalist' => $ users )); * // * single data entry */$ row = mysql_fetch_row ($ result, MYSQL_ASSOC); echo json_encode (array ('jsonobj '=> $ row ));} mysql_free_result ($ result); // release result mysql_close (); // close the connection?>

The above is the json data generated by the database.

Single data entry: {"jsonObj": {"id": "1", "name": "lmw "}}

Multiple data entries: {"dataList": [{"id": "1", "name": "lmw" },{ "id": "2 ", "name": "xxj" },{ "id": "3", "name": "xxxj"}]}

In many cases, the program needs to return a result in Json format, for example:

{"UserKeyGetResponse": {"RequestName": "Response", "api_key_value": "response"}, "error_response": {"code": "NO_ERROR", "msg ": "system parameter retrieved "}}

You can write the result as an array:

$ Respon = array ('userkeygetresponse' => array ('requestname' => $ api_request_name, 'api _ key_value '=> $ api_key_value ), 'error _ response' => array ('code' => 'No _ error', 'MSG '=> 'system parameter Retrieved successfully '));

Code

  1000) {        die('possible deep recursion attack');    }    foreach ($array as $key => $value) {        if (is_array($value)) {            arrayRecursive($array[$key], $function, $apply_to_keys_also);        } else {            $array[$key] = $function($value);        }        if ($apply_to_keys_also && is_string($key)) {            $new_key = $function($key);            if ($new_key != $key) {                $array[$new_key] = $array[$key];                unset($array[$key]);            }        }    }    $recursive_counter--;}?>

G:

 'Error _ MSG_MISS ', 'MSG' => 'message does not exist'); echo JSON ($ array);?>

Result:

{"Code": "ERROR_MSG_MISS", "msg": "The message does not exist "}

The client can parse this result. of course, the error code should be replaced by a number.

This is much better. we can display Chinese characters directly. of course, it is okay to display the hexadecimal encoding.

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