json_encode 转义中文和反斜杠

未处理

php 项目开发经常遇到用 json_encode 处理参数然后加密去请求别的项目接口，如果其他项目是非 php 语言，容易在 json_encode 的时候出现中文转义和反斜杠转义的问题，导致加密参数出错。

$goods['name'] = '商品名称';
$goods['picture'] = 'http://localhost/mytest/images/test.jpg';
$goods['price'] = 19.9;
$goods['status'] = 1;
$goods['stock'] = 200;
echo json_encode($goods);

结果：

{"name":"\u5546\u54c1\u540d\u79f0","picture":"http:\/\/localhost\/mytest\/images\/test.jpg","price":19.9,"status":1,"stock":200}

处理中文转义

echo json_encode($goods);

结果：

{"name":"商品名称","picture":"http:\/\/localhost\/mytest\/images\/test.jpg","price":19.9,"status":1,"stock":200}

处理中文转义和反斜杠

echo json_encode($goods,320);
//echo json_encode($goods,JSON_UNESCAPED_UNICODE + JSON_UNESCAPED_SLASHES); //同上 JSON_UNESCAPED_UNICODE + JSON_UNESCAPED_SLASHES = 256 + 64 = 320

结果：

{"name":"商品名称","picture":"http://localhost/mytest/images/test.jpg","price":19.9,"status":1,"stock":200}