备份恢复 - php备份mysql数据库方案有哪些？

Answer 1

用工具啊 navicat 什么的
如果要自动化导出备份sql，一般是通过命令行crontab执行mysqldump 来导出

Answer 2

工具能干的事就交给工具吧！
php代码实现：
提供两种方法，仅供研究使用。
第1种方法：
复制代码 代码如下:

<?php
$host="localhost";
$user="root";
$password="";
$dbname="dbname";
mysql_connect($host,$user,$password);
mysql_select_db($dbname);
$mysql= "set names utf8;";
mysql_query($mysql);
$q1=mysql_query("show tables");
while($t=mysql_fetch_array($q1)){
$table=$t[0];
$q2=mysql_query("show create table $table");
$sql=mysql_fetch_array($q2);
$mysql.=$sql['Create Table'].";n";
$q3=mysql_query("select * from $table");
while($data=mysql_fetch_assoc($q3)){
$keys=array_keys($data);
$keys=array_map('addslashes',$keys);
$keys=join(',',$keys);
$keys="".$keys."";
$vals=array_values($data);
$vals=array_map('addslashes',$vals);
$vals=join("','",$vals);
$vals="'".$vals."'";
$mysql.="insert into $table($keys) values($vals);n";
}
$mysql.="n";
}
$filename=$dbname.date('Ymj').".sql";
$fp = fopen($filename,'w');
fputs($fp,$mysql);
fclose($fp);
echo "数据备份成功,生成备份文件".$filename;
?>
第2种方法：
复制代码 代码如下:

<?php
$host="localhost";
$user="root";
$password="";
$dbname="dbname";
backup_tables($host,$user,$password,$dbname);
/ backup the db OR just a table /
function backup_tables($host,$user,$pass,$name,$tables = '*')
{

$link = mysql_connect($host,$user,$pass);
mysql_select_db($name,$link);

//get all of the tables
if($tables == '*')
{
$tables = array();
$result = mysql_query('SHOW TABLES');
while($row = mysql_fetch_row($result))
{
$tables[] = $row[0];
}
}
else
{
$tables = is_array($tables) ? $tables : explode(',',$tables);
}
$return = '';
//cycle through
foreach($tables as $table)
{
$result = mysql_query('SELECT * FROM '.$table);
$num_fields = mysql_num_fields($result);
$return.= 'DROP TABLE '.$table.';';
$row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
$return.= "nn".$row2[1].";nn";

for ($i = 0; $i < $num_fields; $i++)
{
while($row = mysql_fetch_row($result))
{
$return.= 'INSERT INTO '.$table.' VALUES(';
for($j=0; $j<$num_fields; $j++)
{
$row[$j] = addslashes($row[$j]);
$row[$j] = ereg_replace("n","\n",$row[$j]);
if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
if ($j<($num_fields-1)) { $return.= ','; }
}
$return.= ");n";
}
}
$return.="nnn";
}

//save file
$handle = fopen('db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql','w+');
fwrite($handle,$return);
fclose($handle);
}
?>

Answer 3

public function uploadAction(){
        $root = $this->config->database->username;
        $pass = $this->config->database->password;
        $dbname = $this->config->database->dbname;
        $timestr = date('YmdHis');
        $fileName = "backupMysqlFile-$timestr.sql.gz";
        $filePath = "/backup/mysql/$fileName";
        $command = "mysqldump -h127.0.0.1 -u$root -p$pass $dbname | gzip > $filePath";
        exec($command);
        $ret = $this->qiniuuploadMgr->putFile($this->qiniuToken,$fileName,$filePath);
    }

> #crontab -e

02 00 * * * /bin/sh /alidata/script/crontab/backupmysql.sh
#定义一个每天晚上00:02执行脚本的任务

backupmysql.sh里面只有一个请求CURL请求php action