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$_GET['cat'],$_GET['dog'] Under what circumstances does $v3 equal 1?
- WBOYOriginal
- 2016-08-04 09:20:351390browse
<code>$v3 = 0;
$c=@$_GET['cat'];
$d=@$_GET['dog'];
if(@$c[1]){
if(!strcmp($c[1],$d) && $c[1]!==$d){
echo $d.$c[0];
eregi("3|1|c",$d.$c[0])?die("nope"):NULL;
strpos(($c[0].$d), "htctf2016")?$v3=1:NULL;
}
}
</code>
$_GET['cat'],$_GET['dog'] Under what circumstances does $v3 equal 1?
Reply content:
<code>$v3 = 0;
$c=@$_GET['cat'];
$d=@$_GET['dog'];
if(@$c[1]){
if(!strcmp($c[1],$d) && $c[1]!==$d){
echo $d.$c[0];
eregi("3|1|c",$d.$c[0])?die("nope"):NULL;
strpos(($c[0].$d), "htctf2016")?$v3=1:NULL;
}
}
</code>
$_GET['cat'],$_GET['dog'] Under what circumstances does $v3 equal 1?
This problem is caused by PHP's weak typing. The technique used here is that when strcmp compares array and string, a null will be returned, and %00 can truncate eregi.
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