备份mysql数据库的php代码(一个表一个文件)
2024-05-04 22:09:09
供稿：网友
代码如下:
<?php
$cfg_dbhost ='localhost';//mysql主机
$cfg_dbname ='sq_test';//数据库名
$cfg_dbuser ='root';//数据库用户名
$cfg_dbpwd ='Vevb.com';//数据库用户密码
$cfg_db_language ='utf8';//数据库编码
class dbmysql{
public static $dbhost = 'localhost';
public static $dbname;
public static $dbuser = 'root';
public static $dbpass;
public static $charset = 'utf8';
public static $DB = null;
public $querycount = 0;
public function __construct()
{
self::$dbhost = $GLOBALS['cfg_dbhost'];
self::$dbname = $GLOBALS['cfg_dbname'];
self::$dbuser = $GLOBALS['cfg_dbuser'];
self::$dbpass = $GLOBALS['cfg_dbpwd'];
self::$charset= $GLOBALS['cfg_db_language'];
self::connect();
}
public function connect(){
self::$DB=mysql_connect(self::$dbhost,self::$dbuser,self::$dbpass);
if(!self::$DB){
self::sqlError('无法连接服务器!'.self::mysqlerror);exit("无法连接服务器!");;
}
if(!mysql_select_db(self::$dbname)){
self::sqlError('无法连接数据库('.self::$dbname.')!'.self::mysqlerror);exit("无法连接数据库!");
}
mysql_query("SET NAMES '".self::$charset."', character_set_client=binary, sql_mode='';",self::$DB);
}
private function mysqlerror(){
return mysql_error();
}
public function getTablesName(){
$res = mysql_query('SHOW TABLES FROM '.self::$dbname,self::$DB);
$tables=array();
while ($row=mysql_fetch_row($res))$tables[]=$row[0];
mysql_free_result($res);
return $tables;
}
public function getFields($table){
$res=mysql_query('DESCRIBE '.$table,self::$DB);
$tables=array();
while($row=mysql_fetch_row($res))$tables[]=$row[0];
mysql_free_result($res);
return $tables;
}
public function fetch_array($sql){
$res=mysql_query($sql,self::$DB);
$r=mysql_fetch_array($res);
mysql_free_result($res);
return $r;
}
public function fetch_assoc($sql){
$q3=mysql_query($sql,self::$DB); $ra=array();
while($data=mysql_fetch_assoc($q3)){
$ra[]=$data;
}
mysql_free_result($q3);
return $ra;
}
private function sqlError($message='',$info ='',$sql=''){//保存错误信息到文件
echo "{".$message."<br/>DATE: ".date('Y-n-j H:i:s')."<br/>ERROR: ".$info."<br/>SQL: ".$sql."<br/>}<br/>";
}
public function close(){
self::$DB =null;
}
public function __destruct()
{
self::close();
}
}
/*---class end*/
function makedir($dirpath){
if(!$dirpath) return 0;
$dirpath=str_replace("//","/",$dirpath); $mdir="";
foreach(explode("/",$dirpath) as $val){
$mdir.=$val."/";
if($val==".."||$val==".")continue;
if(!is_dir($mdir)&&!file_exists($mdir)){
if(!@mkdir($mdir,0755)){
exit("创建目录 [".$mdir."]失败.");
}
}
}
return true;
}
function delDirAndFile($dirName){
if($handle=opendir($dirName)){
while(false!==($item = readdir($handle))){
