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apw_change_db_collation.php
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apw_change_db_collation.php
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<?
$host = "localhost";
$database = "database";
$uid = "usedid";
$passwd = "password";
$collation = "utf8_general_ci";
$charset = "utf8";
$dbc=new MySQLi($host,$uid,$passwd,$database);
if($dbc->connect_errno){
echo mysqli_connect_error();
exit;
}
// Do Database
$sql = "ALTER DATABASE " . $database . " CHARACTER SET " . $charset . " COLLATE " . $collation . ";";
echo "<div>" . $sql . "</div>\n\n";
$dbc->query("SET foreign_key_checks = 0; " . $sql . " SET foreign_key_checks = 1;");
// Do Tables
$sql = "SELECT concat ( " .
"'ALTER TABLE ', " .
"t1.TABLE_SCHEMA, " .
"'.', " .
"t1.table_name, " .
" ' CONVERT TO character set " . $charset . " collate " . $collation . ";'" .
") " .
"FROM " .
"information_schema.tables t1 " .
"WHERE " .
"t1.TABLE_SCHEMA like '" . $database . "' AND " .
"t1.TABLE_COLLATION IS NOT NULL AND " .
"t1.TABLE_COLLATION NOT IN ('" . $collation . "'); ";
//echo "<div>" . $sql . "</div>\n\n";
$res=$dbc->query($sql) or die($dbc->error);
while($queries=$res->fetch_array()){
$sql = "SET foreign_key_checks = 0; " . $queries[0] . " SET foreign_key_checks = 1;";
$dbc->query($sql);
echo "<div>" . $sql . "</div>\n\n";
}
// Do Columns
$sql = "SELECT concat ( " .
"'ALTER TABLE ', " .
"t1.TABLE_SCHEMA, " .
"'.', " .
"t1.table_name, " .
"' MODIFY ', " .
"t1.column_name, " .
"' ', " .
"t1.data_type, " .
"'(' , " .
"CHARACTER_MAXIMUM_LENGTH, " .
"')', " .
"' CHARACTER SET " . $charset . " COLLATE " . $collation . ";' " .
") " .
"FROM " .
" information_schema.columns t1 " .
"WHERE " .
" t1.TABLE_SCHEMA like '" . $database . "' AND " .
"t1.COLLATION_NAME IS NOT NULL AND " .
"t1.COLLATION_NAME NOT IN ('" . $collation . "');";
//echo "<div>" . $sql . "</div>\n\n";
$res=$dbc->query($sql) or die($dbc->error);
while($queries=$res->fetch_array()){
$sql = "SET foreign_key_checks = 0; " . $queries[0] . " SET foreign_key_checks = 1;";
$dbc->query($sql);
echo "<div>" . $sql . "</div>\n\n";
}
?>