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Homephp教程php手册php中GBK/GB2312页面使用json_decode()中文丢失

用json_decode()将数组/对象序列化为JSON字符串的时候基本上只支持 UTF-8/ASCII编码,而我们有的站采用了GBK/GB2312编码,这个时候,直接使用json_encode/json_decode的时候就可能会出问题了,代码如下:

<?php
$json = &#39;{"a":"中国人人"}&#39;;
var_dump(json_decode($json));
?>
//结果 
//{"text":null,"status":1}

比如转含有中文的字符字变成空(null),但有时候我们又必须得用gb编码而又要用到json_decode()转换的时候呢?什么办呢?自己昨晚写了一个不用数据库的一个添加音乐的小后台,也就是用php添加音乐,然后生成xml菜单,不用数据库那也得用一个方式来保存数据了,保存成文本的数据再可以直接拿出来用的,我想是把数组json_decode()用它转成json格式,用的时候再拿出来用它json_encode转回数组就可以了(可能最近弄js被json影响了,好像把数组序列化还有更好的方法,比如用:serialize()和unserialize()),呵呵,转正题,既然json_decode()在gb编码上转不了中文,那么我们可以先把中文转成英文编码的形式,那可以使用这个urlencode()转一下编码,再做json_decode()转换,使用的时候,再用urldecode()转成中文就可以了,代码如下:

<?php
/*
	字符串GBK转码为UTF-8,数字转换为数字。 
*/
function ct2($s) {
    if (is_numeric($s)) {
        return intval($s);
    } else {
        return iconv("GBK", "UTF-8", $s);
    }
}
/*
	批量处理gbk->utf-8 
*/
function icon_to_utf8($s) {
    if (is_array($s)) {
        foreach ($s as $key => $val) {
            $s[$key] = icon_to_utf8($val);
        }
    } else {
        $s = ct2($s);
    }
    return $s;
}
echo json_encode(icon_to_utf8("厦门"));
?>

               
               

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