問題描述
我正在使用 PHPUnit 來驗證來自我的 PHP 代碼的 XML 輸出，但顯然我在字符編碼方面遇到了問題 MySQL 返回.這是我從 DOMDocument 得到的錯誤:
I'm using PHPUnit to validate XML output from my PHP code, but apparently I have problems with the character encoding MySQL returns. Here is the error I get from DOMDocument:
Input is not proper UTF-8, indicate encoding!
Bytes: 0xE9 0x20 0x42 0x65
我初始化了 DOMDocument 以使其使用正確的編碼:
I initialize the DOMDocument so it uses the correct encoding:
$domDocument = new DOMDocument('1.0','UTF-8');
當我使用 mb_detect_encoding 檢查 saveXML() 的輸出時，結果是 UTF-8.
And when I check the output from saveXML() using mb_detect_encoding the result is UTF-8.
我還檢查了用于創建 XML 的所有調用，對遇到的所有 createCDATASection 參數使用 mb_detect_encoding，它們都是 UTF-8 或 ASCII(沒有純文本節點，所有內容都在 CDATA 塊).
I also checked all the calls used to create the XML, using mb_detect_encoding on all createCDATASection parameters encountered and they are all either UTF-8 or ASCII (there are no plain text nodes, everything is in CDATA blocks).
我認為問題來自于使用é"字符(在 ISO 8859-1).將該字符添加到我的 XML 的行是:
I think the issue comes from the use of an 'é' character (which is 0xE9 in ISO 8859-1). The line which adds that character to my XML is:
$domDocument->createCDATASection($place->name);
和 mb_detect_encoding($place->name) 給我 UTF-8.
and mb_detect_encoding($place->name) gives me UTF-8.
數據 ($place->name) 是從 MySQL 數據庫中提取的.此數據庫具有 UTF-8 字符集.
The data ($place->name) is pulled from a MySQL database. This database has the UTF-8 charset.
這是一些示例代碼:
$query = sprintf('SELECT name FROM place where id = 1');
$result = mysql_query($query);
$result = mysql_fetch_assoc($result);
// -- Feeding UTF-8 data directly WORKS
$domDocument = new DOMDocument('1.0','UTF-8');
$rootNode = $domDocument->createElement('Response');
$rootNode->appendChild($domDocument->createCDATASection('Café Belga'));
$domDocument->appendChild($rootNode);
$matcher = array('tag' => 'Response');
self::assertTag($matcher, $domDocument->saveXML(), '', FALSE);
// -- Feeding UTF-8 data from the resultset FAILS
$domDocument = new DOMDocument('1.0','UTF-8');
$rootNode = $domDocument->createElement('Response');
$rootNode->appendChild($domDocument->createCDATASection($result['name']));
$domDocument->appendChild($rootNode);
$matcher = array('tag' => 'Response');
self::assertTag($matcher, $domDocument->saveXML(), '', FALSE);
在我的 PHPStorm 調試器中，從數據庫中提取的字符串如下所示:
In my PHPStorm debugger, the string fetched from the database looks like this:
Café Belga
所以我認為這是問題的根源.在 MySQLWorkbench 中，字符串是正確的:Café Belga.
So I think that is the root of the problem. In MySQLWorkbench the string is correct: Café Belga.
使用 utf8_encode($result['name']) 時，一切正常！
When using utf8_encode($result['name']), however, everything works fine!
在手表窗口中再檢查一次:
One more check in the watches window:
mb_detect_encoding($result['name']) -> "UTF-8"
mb_detect_encoding($result['name']) -> "UTF-8"
mb_detect_encoding(utf8_encode($result['name'])) -> "UTF-8"
mb_detect_encoding(utf8_encode($result['name'])) -> "UTF-8"
順便說一句，是否有任何網站可以讓我簡單地復制粘貼這些十六進制值并查看它們在不同字符集中應該是什么字符?
On a side note, are there any sites where I can simply copy-paste those hex values and see what characters they are supposed to be in different character sets?
推薦答案
您必須將與數據庫的連接定義為 UTF-8:
You have to define the connection to your database as UTF-8:
// Set up your connection
$connection = mysql_connect('localhost', 'user', 'pw');
mysql_select_db('yourdb', $connection);
mysql_query("SET NAMES 'utf8'", $connection);
// Now you get UTF-8 encoded stuff
$query = sprintf('SELECT name FROM place where id = 1');
$result = mysql_query($query, $connection);
$result = mysql_fetch_assoc($result);
這篇關于如何讓 MySQL 返回 UTF-8?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！