Automatically back up your website data

A problem occurs on the front-end time host provider server. The depressing thing is that the data is restored to a week ago, leading to the loss of some blog data.

After a headache, I came up with a method to automatically back up website data.

1. convert data to SQL on the server
To convert data on the server to an SQL script, you need to put a PHP file on the server. The php file is used to connect to the database, read the data, and convert it to SQL. For example, we put a tosql. php file in the htdocs directory of the server. The content is as follows:

<? PHP  Error_reporting ( E_all &~ E_notice  );  Include_once 'Application/configs/dbconfig. php' ;  Include_once 'Application/DES/DB. Class. php' ; Header ('Expires: Mon, 26 Jul 1997 05:00:00 gmt' );  Header ('Last-modified :'. Gmdate ('D, D m y h: I: s'). 'gmt' );  Header ('Cache-control: No-store, no-cache, must-revalidate' );  Header ('Cache-control: Post-check = 0, pre-check = 0 ', False  );  Header ('Pragma: No-cache' ); Header ("Content-Type: text/plain; charset = UTF-8" );  $ DB = New  DB ();  $ DB -> Connect ( $ Config ['Db'] ['host'], $ Config ['Db'] ['user'], $ Config ['Db'] ['pass' ]);  $ DB -> Select_db ( $ Config ['Db'] ['name' ]); $ DB -> Query ('set names utf8' );  $ Sqldump ='' ;  //  My table names start with TBS _  $ SQL = "Show table status where name like 'tbs _ % '" ;  $ Query = $ DB -> Query ( $ SQL  );  While ( $ Table =$ DB -> Fetch_array ( $ Query  )){  $ Sqldump . = SQL _dumptable ( $ Table ['Name' ]);}  Echo   $ Sqldump  ;  Function SQL _dumptable ( $ Table  ){  Global   $ DB  ; $ Tabledump = "Drop table if exists $ Table ; \ N" ;  $ Createtable = $ DB -> Query ("show CREATE TABLE $ Table " );  $ Create = $ DB -> Fetch_array ( $ Createtable  );  $ Tabledump . = $ Create [1]. "; \ n";  $ Rows = $ DB -> Query ("select * from $ Table " );  $ Numfields = $ DB -> Num_fields ( $ Rows  );  $ Numrows = $ DB -> Num_rows ( $ Rows  );  While ($ Row = $ DB -> Fetch_array ( $ Rows  )){  $ Comma = "" ;  $ Tabledump . = "Insert $ Table Values (" ;  For ( $ I = 0; $ I < $ Numfields ; $ I ++ ){  $ Tabledump . = $ Comma ."'". Mysql_escape_string ( $ Row [ $ I ]). "'" ;  $ Comma = "," ;}  $ Tabledump . = "); \ N" ;}  $ Tabledump . = "\ N" ;  Return  $ Tabledump  ;} 

 

2. Add a PHP file locally to obtain the SQL basic from the server and then write it to the local file. The PHP file named nextdata. php contains the following content:

 
<?PHP$ Filename=Dirname(_ File __). '/Data/tbs _'.Date('Ymdhis ',Mktime() + 3600*8). '. SQL';$ Sqldump=File_get_contents('HTTP: // www.nextphp.com/tosql.php ');
File_put_contents ($ filename, $ sqldump );
 

 

3. implement regular backup
A local Windows operating system is used. You can use scheduled tasks to regularly execute backup tasks. This requires a batch file. The batch processing file name is called nextdata. bat, as shown in the following figure:

 
D: \ Wamp \ bin \ PHP \ php5.3.5 \ PHP nextdata. php
 

 

After the above three steps, our scheduled task will regularly execute the tosql. php file on the server, and then write the content to the local machine, thus implementing the Database Backup Task.