下面看下使用方法：
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<?php error_reporting(0);//消灭万恶的php报警提示 //设定邮箱 $options = array('email' => array('email1', 'email2'), 'folder' => './backup/', 'mysql' => array('localhost', 'user', 'password', 'db')); $b = new Backup($options); // 提交备份命令 if(isset($_POST['backup'])) { // 开始备份 $b->backupDB(); } // 显示备份表 $b->outputForm(); ?> |
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具体类实现：
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<?php class Backup { /** * @var 用于保存配置参数 */ var $config; /** * @var 用于保存mysql dump的数据 */ var $dump; /** * @var 用于数据库结果数据以及insert指令 */ var $struktur = array(); /** * @var 压缩文件名zip */ var $datei; /** * 结构函数 * 连接数据库 * @return */ public function Backup($options) { // 从形参中读取配置 foreach($options AS $name => $value) { $this->config[$name] = $value; } // 连接数据库 mysql_connect($this->config['mysql'][0], $this->config['mysql'][1], $this->config['mysql'][2]) or die(mysql_error()); mysql_select_db($this->config['mysql'][3]) or die(mysql_error()); } /** * 执行备份数据库流程的函数 * @return */ public function backupDB() { // 开始备份的命令 if(isset($_POST['backup'])) { // 检测是否选择了数据表 if(empty($_POST['table'])) { die("请选择一个数据表。"); } /** 开始备份 **/ $tables = array(); $insert = array(); $sql_statement = ''; // 锁定需要备份的数据库，防止读脏数据 foreach($_POST['table'] AS $table) { mysql_query("LOCK TABLE $table WRITE"); // 获取数据库结构 $res = mysql_query('SHOW CREATE TABLE '.$table.''); $createtable = mysql_result($res, 0, 1); $str = "nn".$createtable."nn"; array_push($tables, $str); // 查询数据表中的所有数据行 $sql = 'SELECT * FROM '.$table; $query = mysql_query($sql) or die(mysql_error()); $feld_anzahl = mysql_num_fields($query); $sql_statement = '-- -- Data Table `$table` -- '; // 开始读数据，并将其转换为insert命令 while($ds = mysql_fetch_object($query)){ $sql_statement .= 'INSERT INTO `'.$table.'` ('; for ($i = 0;$i <$feld_anzahl;$i++){ if ($i ==$feld_anzahl-1){ $sql_statement .= mysql_field_name($query,$i); } else { $sql_statement .= mysql_field_name($query,$i).', '; } } $sql_statement .= ') VALUES ('; for ($i = 0;$i <$feld_anzahl;$i++){ $name = mysql_field_name($query,$i); if (empty($ds->$name)){ $ds->$name = 'NULL'; } if ($i ==$feld_anzahl-1){ $sql_statement .= '"'.$ds->$name.'"'; } else { $sql_statement .= '"'.$ds->$name.'", '; } } $sql_statement .= ");n"; } // 将insert数据放在数组中，去重 if(!in_array($sql_statement, $insert)) { array_push($insert, $sql_statement); unset($sql_statement); } unset($sql_statement); } // 将数据库结构与insert命令放在一起啦 $this->struktur = array_combine($tables, $insert); // 执行dump函数 $this->createDUMP($this->struktur); // 生成zip压缩包 $this->createZIP(); /** 备份结束 **/ // 发一封邮件到指定邮箱，附件包含sql备份，如果你设置了的话^_^ if(isset($this->config['email']) && !empty($this->config['email'])) { $this->sendEmail(); } // output echo '<h3 style="color:green;">备份完成啦</h3><a href="'. $this->datei.'">下载备份</a> <br /> <br />'; } } /** * 发送邮件函数 * @return */ protected function sendEmail() { // 读取邮箱地址 foreach($this->config['email'] AS $email) { $to = $email; $from = $this->config['email'][0]; $message_body = "本邮件中包含的zip压缩包为数据库备份"; $msep = strtoupper (md5 (uniqid (time ()))); // 设置email头 $header = "From: $fromrn" . "MIME-Version: 1.0rn" . "Content-Type: multipart/mixed; boundary=".$msep."rnrn" . "--$mseprn" . "Content-Type: text/plainrn" . "Content-Transfer-Encoding: 8bitrnrn" . $message_body . "rn"; // 文件名 $dateiname = $this->datei; // 压缩包大小 $dateigroesse = filesize ($dateiname); // 读取压缩包 $f = fopen ($dateiname, "r"); // 保存到附件 $attached_file = fread ($f, $dateigroesse); // 关闭压缩包 fclose ($f); // 建立一个附件 $attachment = chunk_split (base64_encode ($attached_file)); // 设置附件头 $header .= "--" . $msep . "rn" . "Content-Type: application/zip; name='Backup'rn" . "Content-Transfer-Encoding: base64rn" . "Content-Disposition: attachment; filename='Backup.zip'rn" . "Content-Description: Mysql Datenbank Backup im Anhangrnrn" . $attachment . "rn"; // 标记附件结束未知 $header .= "--$msep--"; // 邮件标题 $subject = "数据库备份"; // 发送邮件需要开启php相应支持哦^^ if(mail($to, $subject, '', $header) == FALSE) { die("无法发送邮件，请检查邮箱地址"); } echo "<p><small>邮件发送成功</small></p>"; } } /** * 建立数据库备份的压缩包并保存到服务器指定目录中 * @return */ protected function createZIP() { // 文件夹权限要够 chmod($this->config['folder'], 0777); // 建立压缩包 $zip = new ZipArchive(); // 设置压缩包文件名 $this->datei = $this->config['folder'].$this->config['mysql'][3]."_" .date("j_F_Y_g_i_a").".zip"; // 看看压缩包能不能打开 if ($zip->open($this->datei, ZIPARCHIVE::CREATE)!==TRUE) { exit("无法打开 <".$this->datei.">n"); } // 把dump出来的数据放到压缩包里 $zip->addFromString("dump.sql", $this->dump); // 关闭压缩包 $zip->close(); // 看看压缩包有没有生成 if(!file_exists($this->datei)) { die("无法生成压缩包"); } echo "<p><small>数据库备份压缩包成功生成</small></p>"; } /** * mysql dump函数 * @param object $dump * @return */ protected function createDUMP($dump) { $date = date("F j, Y, g:i a"); $header = <<<HEADER -- SQL Dump -- -- Host: {$_SERVER['HTTP_HOST']} -- Erstellungszeit: {$date} -- -- Datenbank: `{$this->config['mysql'][3]}` -- -- -------------------------------------------------------- HEADER; foreach($dump AS $name => $value) { $sql .= $name.$value; } $this->dump = $header.$sql; } /** * 生成选择数据表的界面函数 * @return */ public function outputForm() { // 选择全部 $result = mysql_list_tables($this->config['mysql'][3]); $buffer = ' <fieldset> <legend>选择需要备份的数据表</legend> <form method="post" action=""> <select name="table[]" multiple="multiple" size="30">'; while($row = mysql_fetch_row($result)) { $buffer .= '<option value="'.$row[0].'">'.$row[0].'</option>'; } $buffer .= '</select> <br /><br /> <input type="submit" name="backup" value="备份选定数据表" /> </form> </fieldset>'; echo $buffer; } } ?> |
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通用数据库备份类
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<?php /*数据库备份:NOTICE:此类要添加数据库连接才能正常工作*/ Class Back_up_databaseextendsdbstuff{ //类开始 var $HOST; var $USERNAME; var $PASSWORD; var $DATABASE; function Back_up_database($host,$username,$password,$database){ //初始化数据库连接 $this->HOST=$host; $this->USERNAME=$username; $this->ASSWORD=$password; $this->DATABASE=$database; $Connection=$this->connect($this->HOST,$this->USERNAME,$this->ASSWORD,$this->DATABASE,$pconnect); $this->Connection=$Connection; } //取得数据库中的表 function get_table_name($database){ $this->Connection; $result=mysql_list_tables($database); $i=0; while($i<mysql_num_rows($result)){ $tb_name[$i]=mysql_tablename($result,$i); $table_name.=$tb_name[$i].","; $i++; } $this->table_name=substr($table_name,0,-1); return$this->table_name; } //取得每个表中的FIELDS和属性并生成CREATETABLE语句 function get_table_fields($table_name){ $this->Connection; $createtable=dbstuff::query("SHOWCREATETABLE$table_name"); $create=dbstuff::fetch_row($createtable); $tabledump.="DROPTABLEIFEXISTS$table_name;\n"; $tabledump.=$create[1].";\n\n"; $this->$table_name=$tabledump; return$this->$table_name; } //取得表中的数据并生成ISERTINTO语句 function get_insert($table_insert_name){ $this->Connection; $rows=dbstuff::query("SELECT*FROM$table_insert_name"); $numfields=dbstuff::num_fields($rows); $numrows=dbstuff::num_rows($rows); while($row=dbstuff::fetch_row($rows)){ $comma=""; $tabledump.="INSERTINTO$table_insert_nameVALUES("; for($i=0;$i<$numfields;$i++){ $tabledump.=$comma."'".mysql_escape_string($row[$i])."'"; $comma=","; } $tabledump.=");\n"; } $this->tabledump=$tabledump; return$this->tabledump; } //获取所有数据并连接成新的字符串并将它写入文件中.sql function get_string($database_name,$file_path_name){ $time=date("Y-m-dH:j"); $date_time=date("YmdHis"); $file_path_name=$file_path_name.$date_time.".sql"; $version="Antsent_Web_StudioDatabaseBackUpV1.01"; $idstring='#Identify:'.base64_encode("$time,$version")."\n"; $head_info="$idstring". "#\n". "#Antsnet_Web!TheBasicClassOfBackUpDataBase\n". "#Version:AntsnetWeb!$version\n". "#Timetime\n". "#Type:ClassOfBackUpDataBase\n". "#Antsnet_Web_Studio!Home:http://www.111cn.net \n". "#PleasevisitourwebsitefornewestinfomationaboutAntsnet_Web_Studio!\n". "#--------------------------------------------------------\n\n\n"; $table_name=$this->get_table_name($database_name); $array_table=explode(",",$table_name); for($i=0;$i<count($array_table);$i++){ $table_string.=$this->get_table_fields($array_table[$i]); $table_insert.=$this->get_insert($array_table[$i]); } $count_string=$head_info.$table_string.$table_insert; //return$count_string; $write_status=$this->write_file($file_path_name,$count_string); return$write_status; } //写入一个文件 function write_file($file_path,$file_contents){ if(@!$fp=fopen($file_path,'w')){ $status="<fontcolor=\"red\">ThisFileCouldNotOpenOrRead.</font>"; }else{ flock($fp,3); fwrite($fp,$file_contents); fclose($fp); window.google_render_ad(); ?> |
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时间： 2024-10-23 17:12:01