php中怎么把数组转成json或字符串并且汉字还是汉字？

Question

下面值是存在数据库的，

{"post":{"categories":"14","id":"177","post_title":"Qiuziti.com","post_keywords":"","post_source":"","siteUrl":"https:\/\/www.qiuziti.com\/","post_excerpt":"\u5728\u7ebf\u8bc6\u522b\u5b57\u4f53","more":{"audio":"","video":"","thumbnail":"portal\/20230822\/c6bb8d78c842b4a282d5c5ad109fe91b.png","template":""},"published_time":"2023-08-22 12:27","post_status":"1"}}

我拿出来用json_decode转成了数组，

array(1) {
  ["post"] => array(10) {
    ["categories"] => string(2) "14"
    ["id"] => string(3) "177"
    ["post_title"] => string(11) "Qiuziti.com"
    ["post_keywords"] => string(0) ""
    ["post_source"] => string(0) ""
    ["siteUrl"] => string(24) "https://www.qiuziti.com/"
    ["post_excerpt"] => string(18) "在线识别字体"
    ["more"] => array(4) {
      ["audio"] => string(0) ""
      ["video"] => string(0) ""
      ["thumbnail"] => string(52) "portal/20230822/c6bb8d78c842b4a282d5c5ad109fe91b.png"
      ["template"] => string(0) ""
    }
    ["published_time"] => string(16) "2023-08-22 12:27"
    ["post_status"] => string(1) "1"
  }
}

但是数组没办法一下子在前端展示，我想把上面的转成json或字符串，并且转后汉字还是汉字。这怎么实现？

Answer 1

你是说数据库里的 JSON 字符串已经是将 Unicode 转义后存储的了，你现在希望输出给前端的时候不要转义 Unicode？

那你可以先 decode、然后再 encode 一次：

$json = '{"post":{"categories":"14","id":"177","post_title":"Qiuziti.com","post_keywords":"","post_source":"","siteUrl":"https:\/\/www.qiuziti.com\/","post_excerpt":"\u5728\u7ebf\u8bc6\u522b\u5b57\u4f53","more":{"audio":"","video":"","thumbnail":"portal\/20230822\/c6bb8d78c842b4a282d5c5ad109fe91b.png","template":""},"published_time":"2023-08-22 12:27","post_status":"1"}}';
echo json_encode(json_decode($json), JSON_UNESCAPED_UNICODE);

不过这仅仅是字符转义而已，实际上你在页面上直接渲染它，显示出来的就是汉字。就像 \n 显示出来就是换行符一样。所以我不太明白你非得想不转义的意图是什么？

Answer 2

将数组转成json字符串，直接使用json_encode(数组)即可。但如果要考虑到中文字符情况，可以在后面添加一个JSON_UNESCAPED_UNICODE参数。

如下面的代码：

<?php

$array = ["id" => 1, "name" => "张三"];

echo json_encode($array);
echo json_encode($array, JSON_UNESCAPED_UNICODE);

最终输出的结果如下：

{"id":1,"name":"\u5f20\u4e09"}{"id":1,"name":"张三"}                        ```