如何在PHP中將UTF-16十六進制字符串轉換爲UTF-8？

Question

我從strace的以下輸出，我想用PHP將其轉換爲UTF-8：

R\00f6dhakev\00e4gen 4 
R\00e4ntm\00e4starv\00e4gen 24 
K\00d8BENHAVN 

上述字符串是UTF 16個十六進制，我認爲。

Answer 1

發現以下功能的工作原理：

function utf8_urldecode($str) { 

    $str = str_replace("\\00", "%u00", $str); 

    $str = preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($str)); 

    return html_entity_decode($str,null,'UTF-8'); 

} 

某些地區的http://us2.php.net/manual/en/function.urldecode.php

Answer 2

試試這個：

function masked_utf16_to_utf8($str) { 
    $str = preg_replace_callback('/\\\\([0-9A-Fa-f]{2})([0-9A-Fa-f]{2})/', create_function('$match', 'return mb_convert_encoding(chr(hexdec("$match[1]")).chr(hexdec("$match[2]")), "UTF-8", "UTF-16");'); 
    return $str; 
}