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Regarding PHP json_decode Chinese escaping issues

藏色散人
Release: 2023-03-06 15:12:02
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php json decode转义的使用方法:首先使用语句“json_encode($a, JSON_UNESCAPED_UNICODE);”把特殊字符进行转义;然后通过该函数的第二个参数限制转义范围即可。

Regarding PHP json_decode Chinese escaping issues

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PHP json_decode中文转义的问题

默认情况下PHP的 json_decode 方法会把特殊字符进行转义,还会把中文转为Unicode编码形式。在有些情况下不希望进行这种转义。

对于PHP5.4+版本,json_decode函数第二个参数,可以用来限制转义范围。要限制中文,使用JSON_UNESCAPED_UNICODE参数。

json_encode($a, JSON_UNESCAPED_UNICODE);
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对于PHP5.3及以前版本,可以用如下方式转回中文:

$originstr = '{"name":"张三"}';
$jsonobject = json_decode($originstr);
// badstr: {"name":"\u5f20\u4e09"}
$badstr = json_encode($jsonobject);
// goodstr: {"name":"张三"} 
$goodstr = preg_replace_callback("#\\\u([0-9a-f]{4})#i", function($matches){
  return iconv('UCS-2', 'UTF-8', pack('H4', $matches[1]));
  }, $badstr);
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