با این دستور فقط فونت انگلیش رو بهم میزنه
کد:
<?php// your connection
mysql_connect("localhost","***","***");
mysql_select_db("***");
 
// convert code
$res = mysql_query("SHOW TABLES");
while ($row = mysql_fetch_array($res))
{
    foreach ($row as $key => $table)
    {
        mysql_query("ALTER TABLE " . $table . " CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci");
        echo $key . " =&gt; " . $table . " CONVERTED<br />";
    }
}
?>