PHP mysql data import and export, data table structure import and export_PHP tutorial

Realize the import and export of data and the import and export of data table structure
**************************** ******************************/

                                                                                                      
Operation file                                                                                                                                                                   . 🎜> //                                                                                                                                                                              private $ DefaultPath;
                                                                                                     //
private $db;
          require(" config.inc.php");
if(!$_DatabaseName) {$this->DatabaseName=$dbName;}
else {$this->DatabaseName=$_DatabaseName;}
     
                                                                                                                                                                                                  >DefaultPath) ;                      $this->DefaultPath=str_replace("","/",$path);                                                =new MysqlDB(); }  /************************************ ************************
**Method name: GetTablesName
**Function description: Get all data tables of $this->Database Name
**Input parameters: None
**Output parameters: None
**Return value: -array TablesName:$this->All data tables of the Database Name>
**Author: Lin Chaoqi
**Day Issue: 2007-04-09
**Modifier:
**Day Issue:
********************************************************/        
        protected function GetTablesName()
        {
                $result=$this->db->Query("show table status");
                while($Row=$this->db->NextRecord($result))
                {
                        $this->TablesName[]=$Row["Name"];
                }
                return $this->TablesName;
        }
        
/***************************************************** ***
**Method name: GetDataFileName
**Function description: Get the physical file name of the data file corresponding to all data tables of $this->Database
**Input parameters: None 🎜>**Output parameters: None
**Return value: -array Database>
** Author: Lin Chaoqi
** day Issue: 2007-04-09
**Modifier:
** day Issue:
************ ********************************************/        
        protected function GetDataFileName()
        {
                $this->GetTablesName();
                $count=count($this->GetTablesName());
                for ($i=0;$i                {
                        $DataFilesName[]=$this->DefaultPath."/".$this->TablesName[$i].".txt";
                        //echo $DataFilesName[$i];
                }
                return $DataFilesName;
        }
        
/***************************************************** ***
**Method name: SaveTableStructure
**Function description: Save the structure of the data table to the install.sql file, the target path is $DefaultPath
**Input parameters: None
* *Output parameters: None
**Return value:- bool** Returning false means saving failed>
**Author: Lin Chaoqi
* *Date Issue: 2007-04-09
**Modifier:
**Date Issue:
************************ **********************************/        
        protected function SaveTableStructure($text)
        {
                $fileName=$this->DefaultPath."/Install.sql";
                //if(file_exists($fileName))
                //{
                //        unlink($fileName);
                //}
                //echo $text;
                $fp=fopen($fileName,"w+");
                fwrite($fp,$text);
        }
        
/*******************************************************
**方 法 名:RestoreTableStructure
**功能描述:备份$this->Database中所有数据表的结构
**输入参数:无         
**输出参数:无
**返 回 值:- bool**                为false表示全部或部分数据表的结构备份失败>
**Author: Lin Chaoqi
**Day Issue: 2007-04-09
**Modifier:
**Day Issue:
************ **********************************************/                                                             protected function BackupTableStructure()
                                                                                         $this->GetTablesName();
$count=count($ this->TablesName);                                                                                                          this->TablesName[$i];                                                                                                                       b->NextRecord( $result);
                                                                                                                 //
                                                                                       `".$tableName."`; ";//`
                                                                                                                  }
                $sqlText=str_replace("r","",$sqlText);
                                                                              ext=str_replace("'" ,"`",$sqlText);
$this->SaveTableStructure($sqlText);
}

/***************************************************** ***
**Method name: RestoreTableStructure
**Function description: Restore the structure of all data tables in $this->Database
**Input parameters: None
**Output parameters: None
**Return value:- bool** If it is false, it means the structure restoration of all or part of the data tables failed>**Author :Lin Chaoqi**Day Issue:2007-04-09**Modifier:**Day Issue:
************** ******************************************/ structure()
{ $ FILENAME = $ this- & gt; defaultPath. "/Install.sql";
if (! File_exist ($ FILENAME)) {Echo "cannot find the table structure file, please confirm that you used to do it in the past. Backup!";exit;}
$fp=fopen($fileName,"r");

$sqlText=fread($fp,filesize($fileName));
                     // $sqlText=str_replace("r","",$sqlText);
//$sqlText=str_replace("n","",$sqlText);                                                                                                                                                                          $sqlArray);
                                                                                                                                                🎜> for($i=1;$i                                                                                                   $result=$this->db->ExecuteSQL($sql);
if(!
mysql
_errno())
                                                                                The structure of data table ".($i/2)." was successfully restored !n";}
                                                                    {
                                                                                                                                                                                                                                                                                                                                                                          does not not not be the same? echo "data table".($i/2). "Structure recovery failed! n";                                                                                                                                                                                                                                                                                           ->db->ShowError($e->getMessage());
                                                                                                  }
           }
 
/************************************************ *************Method name: ImportData**Function description: Import the data of all data tables in $this->Database from the .txt file with the same name, the source path is $DefaultPath
**Input parameters: None
**Output parameters: None
**Return value:- bool** If false, it means the data import of all or part of the data tables failed>
**Author: Lin Chaoqi
** day Issue: 2007-04-09
**Modifier:
** day Issue:
****************** *******************************************/
function ImportData()
{
$DataFilesName=$this->GetDataFileName();
$count=count($this->TablesName);
//$this-> ;db->ExecuteSQL( "set character set gbk");
for ($i=0;$i / ",$DataFilesName[$i])
                                                                                                                                                                               ->TablesName[$i];
                                                                                                                                                                                   try >                                                                                                                    //$this->db->ExecuteSQL("SET NAMES 'utf8'") ;
                                                                                                                                                                                                                                                ($sqlLoadData);
                                                                           return true; Data import was successful!";                                                                                                                                                                                                                                                                            to have return false;

/************************ **********************************
**Method name: ExportData
**Function description : Export the data of all data tables in $this->Database to a .txt file with the same name. The target path is $DefaultPath
**Input parameters: none Table data export failed>
**Author: Lin Chaoqi
**Day Issue:2007-04-09
**Modifier:
**Day Issue:
*************************************************** ******/
                                                                                                                            🎜>                                                                                                              {
                                                                                                                         i]." into outfile '".$DataFilesName[$i]."'";
                                                                                        > );
                                                                                                                                                                                                                                                                                                                         🎜>} Return true;
// echo "The data export is successful!";
🎜> Catch (Exception $ E)
;ShowError($e->getMessage());
                                                         return false;            }
                                                                                                                                                                                                               > function BackupDatabase()
                                                                                                                                                                                              🎜>                        $this->ExportData();
                        return true;
                }
                catch (Exception $e)
                {
                        $this->db->ShowError($e->getMessage());
                        return false;
                        exit();
                }
        }
        
/***************************************************** ***
**Method name: RestoreDatabase
**Function description: Restore the structure and data of all data tables in $this->Database
**Input parameters: None
**Output Parameters: None
**Return value:- bool**                                        Returning to true means that the database restoration of all or part of the data tables has failed>
** Author: Lin Chaoqi
** day Issue: 2007-04-10
**Modifier:
** day Issue:
********** ********************************************/        
        function RestoreDatabase()
        {
                try
                {
                        $this->RestoreTableStructure();
                        $this->ImportData();
                        return true;
                }
                catch (Exception $e)
                {
                        $this->db->ShowError($e->getMessage());
                        return false;
                        exit();
                }               
        }
}
?>[/php]

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