convert_latin1_to_utf8.php

<?php
// Script written by Vladislav "FractalizeR" Rastrusny
// http://www.fractalizer.ru

//MySQL connection settings
$db_server = 'localhost';
$db_user="root";
$db_password="";

mysql_connect($db_server, $db_user, $db_password) or die(mysql_error());

//Put here a list of databases you need to change charset at or leave array empty to change all existing
$dblist=array();

//If changing at all databases, which databases to skip? information_schema is mysql system databse and no need to change charset on it.
$skip_db_list = array('information_schema', 'mysql');

//Which charset to convert to?
$charset="utf8";

//Which collation to convert to?
$collation="utf8_general_ci";

//Only print queries without execution?
$printonly=true;

//Getting database names if they are not specified
$skip_db_text = '"'.implode('", "', $skip_db_list).'"';
if(count($dblist)<1) {
    $sql="SELECT GROUP_CONCAT(`SCHEMA_NAME` SEPARATOR ',') AS FRST FROM `information_schema`.`SCHEMATA` WHERE `SCHEMA_NAME` NOT IN ($skip_db_text)";
    $result = mysql_query($sql) or die(mysql_error());
    $data = mysql_fetch_assoc ($result);
    $dblist=explode(",", $data["FRST"]);
}

//Iterating databases
foreach ($dblist as $dbname) {
    $sql="SELECT CONCAT('ALTER TABLE `', t.`TABLE_SCHEMA`, '`.`', t.`TABLE_NAME`, '` CONVERT TO CHARACTER SET $charset COLLATE $collation;') as FRST FROM `information_schema`.`TABLES` t WHERE t.`TABLE_SCHEMA` = '$dbname' ORDER BY 1";

    $result = mysql_query($sql) or die(mysql_error());
    while ($row = mysql_fetch_assoc($result)) {
        echo $row["FRST"]."\r\n";
        if(!$printonly) {
            mysql_query($row["FRST"]) or die(mysql_error());
        }
    }
}
?>