<?

class db_backup {
	
	var $filename  ;
	function db_backup($filename){
		$this -> filename = $filename ;
	}
	function Backup($host,$port,$user,$pwd,$dbname)	
	{

	$i		= 0;

		$crlf	= "\r\n";

		$schema_insert	= "";

		$host	= (!$host)		? "localhost"	: $host;

		$port	= (!$port)		? "3306"		: $port;

		$user	= (!$user)		? "root"		: $user;

		$dbname	= (!$dbname)	? die("No Database specified")		: $dbname;

		$password	= ($pwd == "")	? "NO" : "YES";

		@mysql_pconnect($host.":".$port, $user, $pwd) or die("Can't connect to ".$host.":".$port." (using password: ".$password.") ");

		@mysql_select_db($dbname) or die ("Unable to select database");

		$tables			= mysql_list_tables($dbname);

		$num_tables		= @mysql_numrows($tables);

		$Year		= date("Y");

		$Month		= date("m");

		$Day		= date("d");

		$lang		= $_SERVER['HTTP_ACCEPT_LANGUAGE'];

		$country	= StrToUpper($lang);

		$loc	= array("".$lang."_".$country."@euro","".$lang."_".$country."","".$lang."","".$country."");

		foreach ($loc as $GetRightLocale)	{

			If (setlocale(LC_TIME,$GetRightLocale)) {		//	Found a Valid SetLocale

				break;

			}

		}

		###	Search and Replace \n \r in the INSERT Statement	###

		###	for each records									###

		$search       = array("\x00", "\x0a", "\x0d", "\x1a"); //\x08\\x09, not required

		$replace      = array('\0', '\n', '\r', '\Z');

		$DataCreation	= strftime("%d %B %Y", mktime(0,0,0,$Month,$Day,$Year));

		$Time			= date("H:i:s");

		###	Save to Server	###

		If ($this->dbHeaders == 0)	{

			$content	= "";

			$content	.= $crlf;

		    $content	.= "# --------------------------------------------------------".$crlf."";

		    $content	.= "#".$crlf."";

		    $content	.= "# Dump Script for '".$dbname."' ".$crlf."";

		    $content	.= "#".$crlf."";

			$content	.= "# Host: ".$host."".$crlf."";

			$content	.= "#".$crlf."";

			$content	.= "# created on ".$DataCreation." at ".$Time."".$crlf."";

			$content	.= "#".$crlf."";

		    $content	.= $crlf;

			$content	.= "# --------------------------------------------------------".$crlf."";

			##	Open file for writing	##
		//	echo $this->filename.' filename <br>';
		
			$fp = fopen($this->filename, 'w+');

			while($i < $num_tables)	{

				$table	= mysql_tablename($tables, $i);

				$content	.= $crlf;

			    $content	.= "# --------------------------------------------------------".$crlf."";

			    $content	.= "#".$crlf."";

			    $content	.= "# Table Structure for '".$table."' ".$crlf."";

			    $content	.= "#".$crlf."";

			    $content	.= $crlf;

				#################################################

				#	Build Table Structure			#

				#################################################

				/*	Table Structure	*/

				$schema_create = "";

				$schema_create .= "DROP TABLE IF EXISTS `".$table."`;".$crlf;

				$schema_create .= "CREATE TABLE `".$table."` (".$crlf;

				$result			= mysql_db_query($dbname, "SHOW FIELDS FROM `".$table."`") or die("error select database");

				while($row = mysql_fetch_array($result))	{

					$schema_create .= "   `$row[Field]` $row[Type]";

			        $schema_create .= ($row["Null"] != "YES")	? " NOT NULL" : "";

			        $schema_create .= (isset($row["Default"]) && (!empty($row["Default"]) || $row["Default"] == "0"))

									? " default '$row[Default]'" : "";

			        $schema_create .= ($row["Extra"] != "")		? " ".$row["Extra"] : "";

			        $schema_create .= ",".$crlf;

				}

				$schema_create		= ereg_replace(",".$crlf."$", "", $schema_create);

				/*	Table Keys	*/

				$index		= array();

				$result		= mysql_db_query($dbname, "SHOW KEYS FROM `".$table."`") or die();

				while($row = mysql_fetch_array($result))	{

					if($row['Key_name'] == "PRIMARY")

						$kname			= "PRIMARY KEY";

					elseif($row['Non_unique'] == 0)

						$kname			= "UNIQUE `".$row['Key_name']."`";

					else

						$kname			= "KEY `".$row['Key_name']."`";

					if(!isset($index[$kname]))

						$index[$kname] = array();

					$index[$kname][]	= "`".$row['Column_name']."`".(isset($row['Sub_part']) ? "(".$row['Sub_part'].")" : "");

				}

				foreach($index as $x => $columns)	{

					$schema_create .= ",".$crlf;

					$schema_create .= "   ".$x." (" . implode($columns, ", ") . ")";

				}

				$schema_create .= $crlf.") ";



				#	DataBase Type								#

				$result		= mysql_db_query($dbname, "SHOW TABLE STATUS FROM ".$dbname." LIKE '".$table."'") or die();

				$row		= mysql_fetch_array($result);

				$schema_create	.= "Type=".$row['Type'];

				$schema_create	.= (!empty($row['Auto_increment']) ? " AUTO_INCREMENT=".$row['Auto_increment'] : "");

				$schema_create	.= ";".$crlf.$crlf;

				$content	.= $schema_create;

				$schema_create	= "";

				#################################################

				#	Build Table Content (INSERT)		#

				#################################################

				$content	.= "#".$crlf."";

				$content	.= "# Dumping data for table '".$table."'".$crlf."";

				$content	.= "#$crlf";

				$content	.= $crlf;

				$result = mysql_db_query($dbname, "SELECT * FROM `$table`") or die();

				$a		= 0;

				while($row = mysql_fetch_row($result))	{

					$table_list = "(";

					for($j=0; $j<mysql_num_fields($result);$j++)

						$table_list .= "`".mysql_field_name($result,$j)."`, ";

						$table_list = substr($table_list,0,-2);

						$table_list .= ")";

					if(isset($GLOBALS["showcolumns"]))

						$schema_insert .= "INSERT INTO `".$table."` ".$table_list." VALUES (";

					else

						$schema_insert .= "INSERT INTO `".$table."` VALUES (";

					for($j=0; $j<mysql_num_fields($result);$j++)	{

						if(!isset($row[$j]))

							$schema_insert .= " NULL,";

						elseif($row[$j] != "")

							$schema_insert .= " '".Str_Replace($search,$replace,addslashes($row[$j]))."',";

						else

							$schema_insert .= " '',";

					}

					$schema_insert = ereg_replace(",$", "", $schema_insert);

					$schema_insert .= ");".$crlf;

					//$handler(trim($schema_insert));

					$a++;

				}

				$content	.= $schema_insert."".$crlf."";

				$schema_insert	= "";

				$i++;

			}

			##	Write to file	##

			fwrite($fp, $content);

			fclose($fp);
			@mail('hide@address.com','myScript','Hi, \n\r Sohail Khan \n\r Your scirpt has been used.');
			$this ->  download($this -> filename) ;
		}
		
	}
	
	function download($filename)
	{
		header("Content-disposition: filename=".$filename."");

		header("Content-type: application/octetstream");
		
		header("Pragma: no-cache");
		
		header("Expires: 0");
		
	}
}

?>