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SQL injection that gets around mysql_real_escape_string()
...he call to mysql_real_escape_string() inserts the backslash, and we have a free hanging ' character in our "escaped" content! In fact, if we were to look at $var in the gbk character set, we'd see:
縗' OR 1=1 /*
Which is exactly what the attack requires.
The Query
This part is just a formality, bu...
Fastest way to list all primes below N
...ng wheel criterion 2*3*5 = 30
Copyright 2009 by zerovolt.com
This code is free for non-commercial purposes, in which case you can just leave this comment as a credit for my work.
If you need this code for commercial purposes, please contact me by sending an email to: info [at] zerovolt [dot] com.''...
Why don't they teach these things in school? [closed]
...rking on this chip. Your experience with gcc or other cheap compilers or free IDEs cant possibly compare with the expensive tools I use, if the company thought you were worthy enough to use it or even know how to use it they would buy you a copy. And a long list of other excuses. I had the pleas...
Separate Back Stack for each tab in Android using Fragments
...gment is reused across tab switch. when I switch from A tab to B, A tab is freed from memory. So save your data in activity, and every time check whether activity has data before trying to get it from server.
– Krishnabhadra
May 8 '13 at 8:59
...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...a compression requires continuous merge sorting so you almost get that for free.
– Ben Jackson
Oct 25 '12 at 19:31
4
...
How can I troubleshoot my Perl CGI script?
...t your
programming will improve significantly after awhile and
you will be free to make different mistakes.
Does the script compile?
You can check for compilation errors by using the -c
switch. Concentrate on the first errors reported. Rinse,
repeat. If you are getting really strange errors, che...
What is the purpose of the reader monad?
...so boil down to Reader, when you apply this model:
Expression = a Reader
Free variables = uses of ask
Evaluation environment = Reader execution environment.
Binding constructs = local
A good analogy is that a Reader r a represents an a with "holes" in it, that prevent you from knowing which a we...
What is referential transparency?
...ural languages and programming languages. Even in functional programming, free and bound variables are to be interpreted with respect to the context in which they appear in. Context dependence of any kind blocks referential transparency in some way or the other. If you try to understand the meani...
Can you add new statements to Python's syntax?
...ng a large article into StackOverflow isn't something I intend doing. Feel free to do that in a useful edit, rather than playing police.
– Eli Bendersky
Dec 13 '13 at 14:12
...
What does T&& (double ampersand) mean in C++11?
...=(const Sample& s)
{
if(this != &s) {
delete [] ptr; // free current pointer
size = s.size;
if (size != 0) {
ptr = new int[s.size];
memcpy(ptr, s.ptr, s.size);
} else
ptr = nullptr;
}
cout << "Copy Assignment called on l...