json_encode gbk/gb2312 Chinese garbled code in php_PHP tutorial

php中json_encode gbk/gb2312中文乱码

 　　1.json_encode()中文在gbk/gb2312中中文返回为null

 代码如下

$arr = array ( 

代码如下
$arr = array (    array (        'catid' => '4',        'catname' => 'www.111cn.net',        'meta_title' => '一聚教程网2'      ) );   echo json_encode($arr); 结果 [{"catid":"4","catname":"www.111cn.net","meta_title":null}]

  array ( 

      'catid' => '4', 

      'catname' => 'www.111cn.net', 

代码如下
$data=”JSON中文”; $newData=iconv(“GB2312″,”UTF-8//IGNORE”,$data); echo $newData; //ignore的意思是忽略转换时的错误，如果没有ignore参数，所有该字符后面的字符都不会被保存。 //或是(“GB2312″,”UTF-8″,$data); ?>

      'meta_title' => '一聚教程网2' 

    )
);
 
echo json_encode($arr);

结果

[{"catid":"4","catname":"www.111cn.net","meta_title":null}]

　　看一了吗"meta_title":null 他本来是有一个值的为一聚教程网2了，这个我们查了一下原理是json_encode只支持uft-8编码，我们转换一下

Step2

The background PHP page (the page is encoded as UTF-8 or the characters have been converted to UTF-8) uses json_encode to convert the array array in PHP into a JSON string. For example:

代码如下
$testJSON=array(‘name’=>’中文字符串’,’value’=>’test’); echo json_encode($testJSON); ?> 查看输出结果为： {“name”:”u4e2du6587u5b57u7b26u4e32″,”value”:”test”}

It can be seen that even if UTF8-encoded characters are used, Chinese garbled characters appear when using json_encode. The solution is to process the characters with the function urlencode() before using json_encode, then json_encode, and use the function urldecode() to convert them back when outputting the result. The details are as follows:

The code is as follows

$testJSON=array(‘name’=>’Chinese string’,’value’=>’test’);
//echo json_encode($testJSON);
foreach ( $testJSON as $key => $value ) {
$testJSON[$key] = urlencode ( $value );
}
echo urldecode ( json_encode ( $testJSON ) );
?>

代码如下
$testJSON=array(‘name’=>’中文字符串’,’value’=>’test’); //echo json_encode($testJSON); foreach ( $testJSON as $key => $value ) { $testJSON[$key] = urlencode ( $value ); } echo urldecode ( json_encode ( $testJSON ) ); ?> 查看输出结果为： {“name”:”中文字符串”,”value”:”test”}

View the output result:

{"name":"Chinese characters string","value":"test"}

Summary: The json_encode function can only process uft8 strings. If it is Chinese, it probably does not handle bytes well, because the lengths of Chinese gbk and uft are different. I will not introduce this in depth.

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json_encode in php gbk/gb2312 Chinese garbled code 1.json_encode() Chinese in gbk/gb2312 Chinese return is null code As follows $arr = array ( array ( 'catid' = '4', 'catname' = 'www.111cn.net', 'm...