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PHP JSON返回null或空字符解决办法

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Release: 2016-05-26 08:20:31
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json只能使用utf-8编码来进行操作,否则就会返回null或空字符串了,下面提供一个非常简单的办法供大家参考.

原因分析:其它的json_decode($str)返回NULL的一些原因:

1.$str只能UTF-8编码

2.元素最后不能有逗号(与php的array不同)

3.元素不能使用单引号

4.元素值中间不能有空格和\n,必须替换

在用PHP JSON处理符合标准的GBK编码内容时会返回null,将内容从GBK转换为UTF8再处理正常,代码如下:

$jsonp = mb_convert_encoding($jsonp, "gbk", "utf-8"); 
//或 
$jsonp = iconv('gbk','utf-8',$jsonp)
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