_Retrieve() ) ) ( return false; ) if ( $task == MSB_SAVE ) ( if (empty($fname)) ( $fname = $this->backup_dir; $fname .= date($this->fname_format); $fname .= ($compress ? '.sql.gz' : '.sql'); ) return $this->_SaveToFile($fname, $sql, $compress); ) elseif ($task == MSB_DOWNLOAD) ( if ( empty( $fname ) ) ( $fname = date($this->fname_format); $fname .= ($compress ? '.sql.gz' : '.sql'); ) return $this->_DownloadFile($fname, $sql, $compress); ) else ( return $sql; ) ) function _Connect() ( $value = false; if (!$this->connected) ( $host = $this->server . ':' . $this->port; $this->link_id = mysql_connect($host, $this->username, $this->password); ) if ($this->link_id) ( if (empty($this->database)) ( $value = true; ) elseif ($this->link_id !== -1) ( $value = mysql_select_db($this->database, $this->link_id); ) else ( $value = mysql_select_db($this->database); ) ) if (!$value) ( $this->error = mysql_error(); ) return $value; ) function _Query($sql) ( if ($this->link_id !== -1) ( $result = mysql_query($sql, $this->link_id); ) else ( $result = mysql_query($sql); ) if (!$result) ( $this->error = mysql_error(); ) return $result; ) function _GetTables() ( $value = array(); if ( !( $result = $this->_Query('SHOW TABLES') ) ) ( return false; ) while ( $row = mysql_fetch_row( $result ) ) ( if ( empty( $this->tables) || in_array( $row(0), $this->tables ) ) ( $value() = $row(0); ) ) if (!sizeof($value)) ( $this->error = 'No tables found in database.'; return false; ) return $value; ) function _DumpTable( $table ) ( $value = ''; $this->_Query( 'LOCK TABLES ' . $table . ' WRITE' ); if ( $this->comments ) ( $value .= '#' . MSB_NL; $value .= '# Table structure for table `' . $table . '`' . MSB_NL; $value .= '#' . MSB_NL . MSB_NL; ) if ( $this->drop_tables ) ( $value .= 'DROP TABLE IF EXISTS `' . $table . '`;' . __SEP__ . MSB_NL; ) if ( !( $result = $this->_Query('SHOW CREATE TABLE ' . $table) ) ) ( return false; ) $row = mysql_fetch_assoc($result); $value .= str_replace("\n", MSB_NL, $row('Create Table')) . ';' . __SEP__; $value .= MSB_NL . MSB_NL; if (!$this->struct_only) ( if ($this->comments) ( $value .= '#' . MSB_NL; $value .= '# Dumping data for table `' . $table . '`' . MSB_NL; $value .= '#' . MSB_NL . MSB_NL; ) $value .= $this->_GetInserts($table); ) $value .= MSB_NL . MSB_NL; $this->_Query('UNLOCK TABLES'); return $value; ) function _GetInserts($table) ( $value = ''; if (!($result = $this->_Query('SELECT * FROM ' . $table))) ( return false; ) if ( $this->complete_inserts ) ( while ($row = mysql_fetch_row($result)) ( $values = ''; foreach ($row as $data) ( $values .= '\'' . addslashes($data) . '\', '; ) $values = substr($values, 0, -2); $value .= 'INSERT INTO ' . $table . ' VALUES (' . $values . ');' . __SEP__ . MSB_NL; ) ) else ( $blocks_counter = 0; $blocks = array(); while ($row = mysql_fetch_row($result)) ( $values = array(); foreach ($row as $data) ( $values() = '\'' . addslashes($data) . '\''; ) $blocks() = '(' . implode( ',', $values ) . ')'; if ( $blocks_counter inserts_block ) ( $blocks_counter++; ) else ( $value .= 'INSERT INTO ' . $table . ' VALUES ' . implode( ',', $blocks ) . ";" . __SEP__ . MSB_NL; $blocks = array(); $blocks_counter = 0; ) ) if ( count( $blocks ) ) ( $value .= 'INSERT INTO ' . $table . ' VALUES ' . implode( ',', $blocks ) . ";" . __SEP__ . MSB_NL; ) ) return $value; ) function _Retrieve() ( $value = ''; if (!$this->_Connect()) ( return false; ) if ($this->comments) ( $value .= '#' . MSB_NL; $value .= '# MySQL database dump' . MSB_NL; $value .= '# Created by MySQL_Backup class, ver. ' . MSB_VERSION . MSB_NL; $value .= '#' . MSB_NL; $value .= '# Host: ' . $this->server . MSB_NL; $value .= '# Generated: ' . date('M j, Y') . ' at ' . date('H:i') . MSB_NL; $value .= '# MySQL version: ' . mysql_get_server_info() . MSB_NL; $value .= '# PHP version: ' . phpversion() . MSB_NL; if (!empty($this->database)) ( $value .= '#' . MSB_NL; $value .= '# Database: `' . $this->database . '`' . MSB_NL; ) $value .= '#' . MSB_NL . MSB_NL . MSB_NL; ) if (!($tables = $this->_GetTables())) ( return false; ) foreach ($tables as $table) ( if (!($table_dump = $this->_DumpTable($table))) ( $this->error = mysql_error(); return false; ) $value .= $table_dump; ) return $value; ) function _SaveToFile($fname, $sql, $compress) ( if ($compress) ( if (!($zf = gzopen($fname, 'w9'))) ( $this->error = 'Can\'t create the output file.'; return false; ) gzwrite($zf, $sql); gzclose($zf); ) else ( if (!($f = fopen($fname, 'w'))) ( $this->error = 'Can\'t create the output file.'; return false; ) fwrite($f, $sql); fclose($f); ) return true; ) function _DownloadFile($fname, $sql, $compress) ( header('Content-disposition: filename=' . $fname); header('Content-type: application/octetstream'); header('Pragma: no-cache'); header('Expires: 0'); echo ($compress ? gzencode($sql) : $sql); return true; ) ) ?>