default-character-set = utf8
default-collation = utf8_general_ci

OSCommeric 還是不吃你這一套，存進去的資料仍然不會是UTF8

首先請先用 OSCommeric 備份你的資料庫，備份完後請先用文字檔確認內容沒有亂碼。(很重要，後面會用到)

接下來在下面2個檔案中修改程式

osc/includes/application_top.php
osc/admin/includes/application_top.php

找到
tep_db_connect() or die('Unable to connect to database server!');

修改成下面這個樣子(2個檔案都要修改)

tep_db_connect() or die('Unable to connect to database server!');
if (substr(mysql_get_server_info(), 0, 3) >= '4.1') {
tep_db_query("SET NAMES 'UTF8'");
}

改完後你會發現原來正常顯示的資料都變成亂碼，不用緊張

這時候再把我們之前備份的資料庫再還原回去(再次提醒還原前一定要確認備份的檔案內容是正常的，沒有亂碼的)

還原完成後，資料庫與網頁的顯示就都正常了。

在後台按下 "客戶/訂單" 會出現下面的訊息

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in
/var/www/osc/admin/customers.php on line 763

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in
/var/www/osc/admin/customers.php on line 765

Warning: reset() [function.reset]: Passed variable is not an array or object in
/var/www/osc/admin/includes/classes/object_info.php on line 17

Warning: Variable passed to each() is not an array or object in
/var/www/osc/admin/includes/classes/object_info.php on line 18

要解決此問題要修正2個檔案

在 admin/customers.php 中找到下面程式

line 7XX: $customer_info = array_merge($country, $info, $reviews);
line 7XX: $cInfo_array = array_merge($customers, $customer_info);

修改成

$customer_info = array_merge((array)$country, (array)$info, (array)$reviews);
$cInfo_array = array_merge((array)$customers, (array)$customer_info);

---------------------------------------------------------------------------------------
在 admin/includes/classes/object_info.php 中找到下面程式

class objectInfo {
// class constructor
function objectInfo($object_array) {
reset($object_array);
while (list($key, $value) = each($object_array)) {
$this->$key = tep_db_prepare_input($value);
}
}
}

修改成

class objectInfo {
    function objectInfo($object_array) {
        $object_array = is_array($object_array) ? $object_array : array($object_array);
        reset($object_array);
        while(list($key, $value) = each($object_array)) {
            $this->$key = tep_db_prepare_input($value);
        }
    }
}

這就子就解決了