php mb_convert_variables 递归错误

Question

我在将一些数组转换为 UTF-8 时遇到问题

基本上我是从网站中提取元标记，如果字符集不是 UTF-8，我会尝试将它们转换为 UTF-8，以便它们可以正确存储和显示。转换前的原始数组如下

print_r($details);


    [base] => http://www.example.com/something/page/
    [charset] => iso-8859-1
    [favicon] => http://www.example.com/favicon.ico
    [meta] => Array
        (
            [description] => Some Description
            [keywords] => 
        )

    [images] => Array
        (
            [0] => http://cdn.example.com/wp-content/themes/original/images/logo.jpg
            [1] => http://cdn.examplecom/wp-content/uploads/2016/10/EXAMPLE-imageoptim-twitter-bird-16x16.png

        )

    [openGraph] => Array
        (
            [locale] => en_GB
            [type] => article
            [title] => Some Title
            [description] => Some Description
            [url] => http://www.example.com/something/page/
            [site_name] => EXAMPLE
            [image] => http://cdn-r1.example.com/wp-content/uploads/2017/02/621-Example-fb.jpg
            [image:width] => 736
            [image:height] => 378
            [imagePath] => http://cdn-r1.example.com/wp-content/uploads/2017/02/621-Example-fb.jpg
        )

    [title] => Some Title
    [url] => http://www.example.com/something/page/
    [url_description] => Some Description

    //End of print_r();

所以上面的数组很好，很合适，但是因为我无法知道文本是否会正确显示，所以我会把它转换成 UTF-8，因为网站统计了它的字符集不是 utf-8。

我把上面的数组通过下面

mb_convert_variables('utf-8', $details['charset'], $details);

注意 $details['meta'] 和 $details['openGraph'] 的输出很奇怪。该数组已替换为 RECURSION。我尝试 google 这个，但我找不到任何东西。

print_r($details);

//Note: This is the exact print_r results with the *RECURSIVE* words.

    [base] => http://www.example.com/something/page/
    [charset] => iso-8859-1
    [favicon] => http://www.example.com/favicon.ico
    [meta] => Array
 *RECURSION*

    [images] => Array
        (
            [0] => http://cdn.example.com/wp-content/themes/original/images/logo.jpg
            [1] => http://cdn.examplecom/wp-content/uploads/2016/10/EXAMPLE-imageoptim-twitter-bird-16x16.png

        )

    [openGraph] => Array
*RECURSION*
    [title] => Some Title
    [url] => http://www.example.com/something/page/
    [url_description] => Some Description

由于上述原因，我无法将其输出为 json 和

echo json_encode($details);
die();

但是...如果我要对其进行序列化和反序列化，再一次没问题。

echo json_encode(unserialize(serialize($details)));
die();

我可以知道我的数组或代码有什么问题吗？我可以使用我当前的序列化和反序列化操作，但我宁愿在它影响我所有未来的数据之前知道这个问题。

Answer 1

它的错误，已报告，手动循环并使用 mb_convert_encoding

转换每个字符串

function mb_convert_array($to_encoding, $from_encoding, $array)
{
    foreach($array as $key => $value)
    {
        if(is_array($value))
        {
            $array[$key] = mb_convert_array($to_encoding, $from_encoding, $value);
        }
        else
        {
            $array[$key] = mb_convert_encoding($value, $to_encoding, $from_encoding);
        }
    }

    return $array;
}

mb_convert_array('utf-8', $details['charset'], $details);

php mb_convert_variables 递归错误

php mb_convert_variables RECURSION error

php

utf-8

mbstring