[李景山php]每天laravel-20161016|JsonResponse.php

<?php

namespace Illuminate\Http;

use JsonSerializable;
use InvalidArgumentException;
use Illuminate\Contracts\Support\Jsonable;
use Illuminate\Contracts\Support\Arrayable;
use Symfony\Component\HttpFoundation\JsonResponse as BaseJsonResponse;

class JsonResponse extends BaseJsonResponse
{// a json response  extends base Json response
use ResponseTrait;// use Response Trait
// a trait

/**
* The json encoding options.
*
* @var int
*/
protected $jsonOptions;// The json encoding options

/**
* Constructor.
*
* @param  mixed  $data
* @param  int    $status
* @param  array  $headers
* @param  int    $options
*/
public function __construct($data = null, $status = 200, $headers = [], $options = 0)
{
$this->jsonOptions = $options;

parent::__construct($data, $status, $headers);
}// a constructor about instance of the response
// more type response

/**
* Get the json_decoded data from the response.
*
* @param  bool  $assoc
* @param  int   $depth
* @return mixed
*/
public function getData($assoc = false, $depth = 512)
{
return json_decode($this->data, $assoc, $depth);// a json decode method
}// Get the json_decoded data from the response.

/**
* {@inheritdoc}
*/
public function setData($data = [])
{
if ($data instanceof Arrayable) {
$this->data = json_encode($data->toArray(), $this->jsonOptions);// array
} elseif ($data instanceof Jsonable) {
$this->data = $data->toJson($this->jsonOptions);// to json
} elseif ($data instanceof JsonSerializable) {
$this->data = json_encode($data->jsonSerialize(), $this->jsonOptions);// to serialize
} else {
$this->data = json_encode($data, $this->jsonOptions);
}

if (JSON_ERROR_NONE !== json_last_error()) {
throw new InvalidArgumentException(json_last_error_msg());
}// JSON_ERROR_NONE

return $this->update();
}// set Data inert into the

/**
* Get the JSON encoding options.
*
* @return int
*/
public function getJsonOptions()
{
return $this->jsonOptions;
}// get Json Options

/**
* Set the JSON encoding options.
*
* @param  int  $options
* @return mixed
*/
public function setJsonOptions($options)
{
$this->jsonOptions = $options;// set the options

return $this->setData($this->getData());// and set Data
}// set Json Options
}