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HomeBackend DevelopmentPHP ProblemHow to solve the Chinese garbled code in php json_encode

php encode中文乱码的解决办法:首先打开相应的PHP文件;然后使用正则语句“preg_replace("#\\\u([0-9a-f]{4})#ie","iconv('UCS-2BE', 'UTF-8'...)”将编码替换成中文即可。

How to solve the Chinese garbled code in php json_encode

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本文列举3个方法,实现json_encode()后的string显示中文问题。

做接口时不需要,但存log时帮了大忙了。

在贴代码前,必须贴上官方param和return,链接:http://php.net/manual/zh/function.json-encode.php 

参数

  • value
  • 待编码的 value ,除了resource 类型之外,可以为任何数据类型

    该函数只能接受 UTF-8 编码的数据

  • options
  • 由以下常量组成的二进制掩码: JSON_HEX_QUOTJSON_HEX_TAGJSON_HEX_AMPJSON_HEX_APOS,JSON_NUMERIC_CHECKJSON_PRETTY_PRINTJSON_UNESCAPED_SLASHESJSON_FORCE_OBJECT,JSON_UNESCAPED_UNICODE.

返回值

编码成功则返回一个以 JSON 形式表示的 string 或者在失败时返回 FALSE 

<?php
// json_encode() 保持中文方法详解

$arr[&#39;city&#39;] = &#39;北京&#39;;
$arr[&#39;name&#39;] = &#39;weilong&#39;;

// 直接输出
// Res: {"city":"\u5317\u4eac","name":"weilong"}
echo json_encode($arr), "\n";

#### 1. 加参数,PHP版本>=5.4
// Res: {"city":"北京","name":"weilong"}
echo json_encode($arr, JSON_UNESCAPED_UNICODE), "\n";  // php >= 5.4

#### 2. 正则替换,json_encode后,正则将编码替换成中文
// Res: {"city":"北京","name":"weilong"}
echo preg_replace("#\\\u([0-9a-f]{4})#ie", "iconv(&#39;UCS-2BE&#39;, &#39;UTF-8&#39;, pack(&#39;H4&#39;, &#39;\\1&#39;))", json_encode($arr)), "\n";    // PHP 5.5 /e修饰符被弃用
echo preg_replace_callback("/\\\u([0-9a-f]{4})/i", function($match) {    // php >= 5.3 都可以
        return json_decode("\"{$match[0]}\"", true);
    }, json_encode($arr)), "\n";

#### 3. urldecode()、urlencode()函数,不推荐
// Res1: null, Res2: {"city":"北京","name":"weilong"}
echo urldecode(json_encode(urlencode($arr))), "\n";
$arr[&#39;city&#39;] = urlencode($arr[&#39;city&#39;]);  // urlencode()参数必须是string
echo urldecode(json_encode($arr)), "\n";


// 另外注意json_decode()参数区别。
$arr[&#39;city&#39;] = &#39;北京&#39;;
$arr[&#39;name&#39;] = &#39;weilong&#39;;
$str = json_encode($arr);
$str2 = json_decode($str);
$str3 = json_decode($str, true);

print_r($str2); // object
/* Res:
stdClass Object
(
    [city] => 北京
    [name] => weilong
) */

print_r($str3); // array
/* Res:
Array
(
    [city] => 北京
    [name] => weilong
)
*/

 

 

 

 

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