Created
May 27, 2014 23:12
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Convert MySQL data to UTF8
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<?php | |
function MysqlError() | |
{ | |
if (mysql_errno()) | |
{ | |
echo "<b>Mysql Error: " . mysql_error() . "</b>\n"; | |
} | |
} | |
$username = ""; | |
$password = ""; | |
$db = ""; | |
$host = ""; | |
$target_charset = "utf8"; | |
$target_collate = "utf8_unicode_ci"; | |
echo "<pre>"; | |
$conn = mysql_connect($host, $username, $password); | |
mysql_select_db($db, $conn); | |
$tabs = array(); | |
$res = mysql_query("SHOW TABLES"); | |
MysqlError(); | |
while (($row = mysql_fetch_row($res)) != null) | |
{ | |
$tabs[] = $row[0]; | |
} | |
// now, fix tables | |
foreach ($tabs as $tab) | |
{ | |
$res = mysql_query("show index from {$tab}"); | |
MysqlError(); | |
$indicies = array(); | |
while (($row = mysql_fetch_array($res)) != null) | |
{ | |
if ($row[2] != "PRIMARY") | |
{ | |
$indicies[] = array("name" => $row[2], "unique" => !($row[1] == "1"), "col" => $row[4]); | |
mysql_query("ALTER TABLE {$tab} DROP INDEX {$row[2]}"); | |
MysqlError(); | |
echo "Dropped index {$row[2]}. Unique: {$row[1]}\n"; | |
} | |
} | |
$res = mysql_query("DESCRIBE {$tab}"); | |
MysqlError(); | |
while (($row = mysql_fetch_array($res)) != null) | |
{ | |
$name = $row[0]; | |
$type = $row[1]; | |
$set = false; | |
if (preg_match("/^varchar\((\d+)\)$/i", $type, $mat)) | |
{ | |
$size = $mat[1]; | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} VARBINARY({$size})"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} VARCHAR({$size}) CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
else if (!strcasecmp($type, "CHAR")) | |
{ | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} BINARY(1)"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} VARCHAR(1) CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
else if (!strcasecmp($type, "TINYTEXT")) | |
{ | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} TINYBLOB"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} TINYTEXT CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
else if (!strcasecmp($type, "MEDIUMTEXT")) | |
{ | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} MEDIUMBLOB"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} MEDIUMTEXT CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
else if (!strcasecmp($type, "LONGTEXT")) | |
{ | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} LONGBLOB"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} LONGTEXT CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
else if (!strcasecmp($type, "TEXT")) | |
{ | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} BLOB"); | |
MysqlError(); | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} TEXT CHARACTER SET {$target_charset}"); | |
MysqlError(); | |
$set = true; | |
echo "Altered field {$name} on {$tab} from type {$type}\n"; | |
} | |
if ($set) | |
mysql_query("ALTER TABLE {$tab} MODIFY {$name} COLLATE {$target_collate}"); | |
} | |
// re-build indicies.. | |
foreach ($indicies as $index) | |
{ | |
if ($index["unique"]) | |
{ | |
mysql_query("CREATE UNIQUE INDEX {$index["name"]} ON {$tab} ({$index["col"]})"); | |
MysqlError(); | |
} | |
else | |
{ | |
mysql_query("CREATE INDEX {$index["name"]} ON {$tab} ({$index["col"]})"); | |
MysqlError(); | |
} | |
echo "Created index {$index["name"]} on {$tab}. Unique: {$index["unique"]}\n"; | |
} | |
// set default collate | |
mysql_query("ALTER TABLE {$tab} DEFAULT CHARACTER SET {$target_charset} COLLATE {$target_collate}"); | |
} | |
// set database charset | |
mysql_query("ALTER DATABASE {$db} DEFAULT CHARACTER SET {$target_charset} COLLATE {$target_collate}"); | |
mysql_close($conn); | |
echo "</pre>"; | |
// OR | |
// SELECT CONCAT('ALTER TABLE `', t.`TABLE_SCHEMA`, '`.`', t.`TABLE_NAME`, '` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;') as stmt | |
// FROM `information_schema`.`TABLES` t | |
// WHERE 1 | |
// AND t.`TABLE_SCHEMA` = 'database_name' | |
// ORDER BY 1 |
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