复制代码 代码如下:
<!?php
/****** 备份数据库结构 ******/

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;
}
/****** 备份数据库结构和所有数据 ******/

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;
}
?>
<!--?php
$host="localhost"; //主机名
$user="root"; //MYSQL用户名
$password="root"; //密码
$dbname="dedecmsv4"; //备份的数据库
mysql_connect($host,$user,$password);
mysql_select_db($dbname);
$q1=mysql_query("show tables");
while($t=mysql_fetch_array($q1)){
$table=$t[0];
$q2=mysql_query("show create table `$table`");
$sql=mysql_fetch_array($q2);
$mysql.=$sql['Create Table'].";rnrn";#DDL
$q3=mysql_query("select * from `$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);rn";
}
$mysql.="rn";
}
$filename=date('Ymd')."_".$dbname.".sql"; //文件名为当天的日期
$fp = fopen($filename,'w');
fputs($fp,$mysql);
fclose($fp);
echo "数据备份成功,生成备份文件".$filename;
?>