> 24 ) & 0xFF ), ( ( $ip >> 16 ) & 0xFF ), ( ( $ip >> 8 ) & 0xFF ), ( ( $ip ) & 0xFF ) );
}
return($return);
}
function convert_date($date_in)
{
list($date, $time) = split(" ", $date_in);
list($year, $month, $day) = split("-", $date);
list($hours, $minutes) = split(":", $time);
$timestamp = mktime($hours, $minutes, 0, $month, $day, $year);
return($timestamp);
}
function drop_column($db, $table, $column)
{
$sql = "alter table $table drop $column";
if (!$r = mysql_query($sql, $db))
echo "ERROR! count not drop column $column from table $table. Reason: " . mysql_error(). "";
}
function change_column($db, $table, $column, $type, $null)
{
$sql = "alter table $table change $column $column $type $null";
if (!$r = mysql_query($sql, $db))
echo "ERROR! count not change column $column from table $table. Reason: " . mysql_error(). "";
}
function add_column($db, $table, $column, $type, $null)
{
$sql = "alter table $table add $column $type $null";
if (!$r = mysql_query($sql, $db))
echo "ERROR! count not add column $column from table $table. Reason: " . mysql_error(). "";
}
?>
phpBB - Database upgrade 1.2 to 2.0 Developers edition
Step 1: Backup the tables to be modified.
";
if(!$db = mysql_connect("$dbhost", "$dbuser", "$dbpasswd"))
die("Error, I could not connect to the database at $dbhost. Using username $dbuser.
Please go back and try again.");
if(!@mysql_select_db("$dbname", $db))
die("Database $dbname could not be found");
$tables = array("posts" => "Y",
"priv_msgs" => "Y",
"sessions" => "Y",
"topics" => "Y",
"banlist" => "Y",
"config" => "N",
"forums" => "N",
"users" => "N",
"access" => "N",
"smiles" => "N",
"words" => "N",
"forum_mods" => "N");
while (list($table_name, $drop_table) = each($tables))
{
echo "Backing up the $table_name table...
";
$backup_name = $table_name . "_backup";
$table_create = "CREATE TABLE $backup_name (\n";
$r = mysql_query("show fields from $table_name", $db);
if (0 != mysql_errno($db))
{
die("Error, could not backup the table $table_name to $backup_name");
}
else
{
while ($row = mysql_fetch_array($r))
{
$table_create .= " $row[Field] $row[Type]";
if (isset($row["Default"]) && (!empty($row["Default"]) || $row["Default"] == "0"))
$table_create .= " DEFAULT '$row[Default]'";
if ($row["Null"] != "YES")
$table_create .= " NOT NULL";
if ($row["Extra"] != "")
$table_create .= " $row[Extra]";
$table_create .= ",\n";
}
/* The code above leaves extra ',' at the end of the row. use ereg_replace to remove it */
$table_create = ereg_replace(",\n$", "", $table_create);
echo " Extracted the table columns ...
\n";
unset($index);
$r = mysql_query("SHOW KEYS FROM $table_name", $db);
while($row = mysql_fetch_array($r))
{
$key_name = $row['Key_name'];
if (($key_name != "PRIMARY") && ($row['Non_unique'] == 0))
$key_name = "UNIQUE|$key_name";
if (!isset($index[$key_name]))
$index[$key_name] = array();
$index[$key_name][] = $row['Column_name'];
}
while(list($x, $columns) = @each($index))
{
$table_create .= ",\n";
if ($x == "PRIMARY")
$table_create .= " PRIMARY KEY (" . implode($columns, ", ") . ")";
elseif (substr($x,0,6) == "UNIQUE")
$table_create .= " UNIQUE " .substr($x,7). " (" . implode($columns, ", ") . ")";
else
$table_create .= " KEY $x (" . implode($columns, ", ") . ")";
}
echo " Extracted the table indexes ...
\n";
$table_create .= "\n)";
mysql_query($table_create, $db);
echo " Created the backup table $backup_name ...
\n";
mysql_query("insert into $backup_name select * from $table_name", $db);
echo " Copied the data from $table_name to $backup_name...
\n";
if ($drop_table == 'Y')
{
mysql_query("drop table $table_name", $db);
echo " Dropped table $table_name...
\n";
}
}
}
?>
Backups completed ok.