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<title>Less-6 Double Query- Double Quotes- String</title>
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<div style=" margin-top:60px;color:#FFF; font-size:23px; text-align:center">Welcome <font color="#FF0000"> Dhakkan </font><br>
<font size="3" color="#FFFF00">
<?php
//including the Mysql connect parameters.
include("../sql-connections/sql-connect.php");
error_reporting(0);
// take the variables
if(isset($_GET['id']))
{
$id=$_GET['id'];
//logging the connection parameters to a file for analysis.
$fp=fopen('result.txt','a');
fwrite($fp,'ID:'.$id."\n");
fclose($fp);
// connectivity
$id = '"'.$id.'"';
$sql="SELECT * FROM users WHERE id=$id LIMIT 0,1";
//这个和第四关相似，so我这里就简单一讲。
//http://127.0.0.1/sqli-labs/Less-4/?id=-1" union select 1,2,3 --+
//加工后："-1" union select 1,2,3 --+"
//sql语句相当于：SELECT * FROM users WHERE id="-1" union select 1,2,3
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row)
{
echo '<font size="5" color="#FFFF00">';
echo 'You are in...........';
echo "<br>";
echo "</font>";
}
else
{
echo '<font size="3" color= "#FFFF00">';
print_r(mysql_error());
echo "</br></font>";
echo '<font color= "#0000ff" font size= 3>';
}
}
else { echo "Please input the ID as parameter with numeric value";}
?>
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<img src="../images/Less-6.jpg" /></center>
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