注意:这是MS Access 2000，这个PHP文件是通过ajax调用来调用的…
在这个PHP文件的开头，我放了
ini_set('default_charset', 'utf-8');
下面的$标记来自以下几行
$search_string = $_GET[ 'search_string' ];
$search_tokens = explode( " ", $search_string );
$token = $search_tokens[ 0 ];
当我有一个没有法语重音字符的"token"时，这个工作正常:
$sql="SELECT * FROM tblFrEng WHERE French = '$token'";
echo "=== SQL is $sql<br>";
$sth = $dbh->prepare( $sql );
$sth->execute();
但是，尽管SQL带有法语单词"r
=== SQL is SELECT * FROM tblFrEng WHERE French = 'référé'
不幸的是，查询返回0行…即使有记录，它也应该返回…所以在我看来，字符编码可能是问题所在
NB我也尝试使用utf8_encode编码，但这，正如所指出的，没有意义和乱码的SQL字符串…
这是我得到工作的PHP代码。我不得不使用mb_convert_encoding()，这是PHP"多字节字符串"("mbstring")扩展的一部分。
代码:
<?php
// NB: save this PHP script as an ANSI text file, not a UTF-8 encoded file
$dbh = new PDO(
'odbc:Driver={Microsoft Access Driver (*.mdb)};' .
'Dbq=C:''Users''Public''acc2000.mdb;' .
'Uid=Admin;Pwd=;');
// this is our test case
$city = 'Montréal';
echo '$city: ' . $city . "'r'n";
// this is the UTF-8 "token" we'd get from the AJAX call...
$token = utf8_encode($city);
echo '$token: ' . $token . "'r'n";
// ...and here we convert to the Access_2000 character set
$win_token = mb_convert_encoding($token, 'Windows-1252', 'UTF-8');
echo '$win_token: ' . $win_token . "'r'n";
$sth = $dbh->prepare('SELECT * FROM Cities WHERE City = ?');
$sth->Execute(array($win_token));
$rst = $sth->fetchAll();
echo '$rst: ';
print_r($rst);
从Windows命令行运行的结果:
C:'__tmp>'php'php odbcTest.php
$city: MontrΘal
$token: Montréal
$win_token: MontrΘal
$rst: Array
(
[0] => Array
(
[City] => MontrΘal
[0] => MontrΘal
)
)