A php class library for backing up MYSQL [worth adding to favorites]

Source: Internet
Author: User
Tags php class php mysql mysql backup

I just want to study how to back up the database and share a php class library for MYSQL backup.

The code is as follows: Copy code
<? Php
/****** Back up the database structure ******/
/***** Just want to study how to back up the database and share a php MYSQL backup class library ********/
/*
Function name: table2sql ()
Function: converts the table structure to SQL
Function parameter: $ table: name of the table to be extracted
Return value: return the extracted results, SQL set
Function author: heiyeluren
*/

Function table2sql ($ table)
  {
Global $ db;
$ Tabledump = "drop table if exists $ table; n ";
$ Createtable = $ db-> query ("show create table $ table ");
$ Create = $ db-> fetch_row ($ createtable );
$ Tabledump. = $ create [1]. "; nn ";
Return $ tabledump;
  }


/****** Back up the database structure and all data ******/
/*
Function name: data2sql ()
Function: converts the table structure and data into SQL statements.
Function parameter: $ table: name of the table to be extracted
Return value: return the extracted results, SQL set
Function author: heiyeluren
*/
Function data2sql ($ table)
  {
Global $ db;
$ Tabledump = "drop table if exists $ table; n ";
$ Createtable = $ db-> query ("show create table $ table ");
$ Create = $ db-> fetch_row ($ createtable );
$ Tabledump. = $ create [1]. "; nn ";

$ Rows = $ db-> query ("SELECT * FROM $ table ");
$ Numfields = $ db-> num_fields ($ rows );
$ Numrows = $ db-> num_rows ($ rows );
While ($ row = $ db-> fetch_row ($ rows ))
      {
$ Comma = "";
$ Tabledump. = "insert into $ table VALUES (";
For ($ I = 0; $ I <$ numfields; $ I ++)
          {
$ Tabledump. = $ comma. "'". mysql_escape_string ($ row [$ I]). "'";
$ Comma = ",";
          }
$ Tabledump. = "); n ";
      }
$ Tabledump. = "n ";

Return $ tabledump;
  }
?>

Summary: the principle of this class library is also very simple. It is to read the database tables cyclically, then call the records in the table and output them cyclically.

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