这是一个非常有用的问题。我认为我在 Windows 10 PHP 7 上的解决方案对于还有一些 UTF-8 转换问题的人来说非常有用。
这是我的步骤。调用以下函数的 PHP 脚本,在utfsave.php中本身必须具有 UTF-8 编码,这可以通过UltraEdit上的转换轻松完成。
在utfsave.php文件中,我们定义了一个调用 PHP fopen($filename, " wb ")的函数,即它以w写入模式打开,尤其是b以二进制模式打开。
<?php
//
// UTF-8 编码:
//
// fnc001: save string as a file in UTF-8:
// The resulting file is UTF-8 only if $strContent is,
// with French accents, Chinese ideograms, etc.
//
function entSaveAsUtf8($strContent, $filename) {
$fp = fopen($filename, "wb");
fwrite($fp, $strContent);
fclose($fp);
return True;
}
//
// 0. write UTF-8 string in fly into UTF-8 file:
//
$strContent = "My string contains UTF-8 chars ie 鱼肉酒菜 for un été en France";
$filename = "utf8text.txt";
entSaveAsUtf8($strContent, $filename);
//
// 2. convert CP936 ANSI/OEM - Chinese simplified GBK file into UTF-8 file
//
// CP936: <https://en.wikipedia.org/wiki/Code_page_936_(Microsoft_Windows)>
// GBK: <https://en.wikipedia.org/wiki/GBK_(character_encoding)>
//
$strContent = file_get_contents("cp936gbktext.txt");
$strContent = mb_convert_encoding($strContent, "UTF-8", "CP936");
$filename = "utf8text2.txt";
entSaveAsUtf8($strContent, $filename);
?>
源文件cp936gbktext.txt的内容:
>>Get-Content cp936gbktext.txt
My string contains UTF-8 chars ie 鱼肉酒菜 for un été en France 936 (ANSI/OEM - chinois simplifié GBK)
在 Windows 10 PHP 上运行utf8save.php ,从而创建utf8text.txt,utf8text2.txt文件将自动保存为 UTF-8 格式。
使用这种方法,不需要 BOM 字符。BOM 解决方案很糟糕,因为它会在我们为 MySQL 获取 SQL 文件时引起麻烦。
值得注意的是,我未能完成工作file_put_contents($filename, utf8_encode($mystring)); 以此目的。
++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++
如果不知道源文件的编码,可以用 PHP 列出编码:
print_r(mb_list_encodings());
这给出了一个这样的列表:
Array
(
[0] => pass
[1] => wchar
[2] => byte2be
[3] => byte2le
[4] => byte4be
[5] => byte4le
[6] => BASE64
[7] => UUENCODE
[8] => HTML-ENTITIES
[9] => Quoted-Printable
[10] => 7bit
[11] => 8bit
[12] => UCS-4
[13] => UCS-4BE
[14] => UCS-4LE
[15] => UCS-2
[16] => UCS-2BE
[17] => UCS-2LE
[18] => UTF-32
[19] => UTF-32BE
[20] => UTF-32LE
[21] => UTF-16
[22] => UTF-16BE
[23] => UTF-16LE
[24] => UTF-8
[25] => UTF-7
[26] => UTF7-IMAP
[27] => ASCII
[28] => EUC-JP
[29] => SJIS
[30] => eucJP-win
[31] => EUC-JP-2004
[32] => SJIS-win
[33] => SJIS-Mobile#DOCOMO
[34] => SJIS-Mobile#KDDI
[35] => SJIS-Mobile#SOFTBANK
[36] => SJIS-mac
[37] => SJIS-2004
[38] => UTF-8-Mobile#DOCOMO
[39] => UTF-8-Mobile#KDDI-A
[40] => UTF-8-Mobile#KDDI-B
[41] => UTF-8-Mobile#SOFTBANK
[42] => CP932
[43] => CP51932
[44] => JIS
[45] => ISO-2022-JP
[46] => ISO-2022-JP-MS
[47] => GB18030
[48] => Windows-1252
[49] => Windows-1254
[50] => ISO-8859-1
[51] => ISO-8859-2
[52] => ISO-8859-3
[53] => ISO-8859-4
[54] => ISO-8859-5
[55] => ISO-8859-6
[56] => ISO-8859-7
[57] => ISO-8859-8
[58] => ISO-8859-9
[59] => ISO-8859-10
[60] => ISO-8859-13
[61] => ISO-8859-14
[62] => ISO-8859-15
[63] => ISO-8859-16
[64] => EUC-CN
[65] => CP936
[66] => HZ
[67] => EUC-TW
[68] => BIG-5
[69] => CP950
[70] => EUC-KR
[71] => UHC
[72] => ISO-2022-KR
[73] => Windows-1251
[74] => CP866
[75] => KOI8-R
[76] => KOI8-U
[77] => ArmSCII-8
[78] => CP850
[79] => JIS-ms
[80] => ISO-2022-JP-2004
[81] => ISO-2022-JP-MOBILE#KDDI
[82] => CP50220
[83] => CP50220raw
[84] => CP50221
[85] => CP50222
)
如果你猜不出来,你一个一个尝试,因为mb_detect_encoding()不能轻易完成这项工作。