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Are PDO prepared statements sufficient to prevent SQL injection?
...llowing information as your new username when creating an account on a web site (assuming MySQL DB for this question):
' + (SELECT UserName + '_' + Password FROM Users LIMIT 1) + '
If there are no other restrictions on the username, a prepared statement would still make sure that the above embedd...
What is Android keystore file, and what is it used for?
...with the same key).
From The App-Signing Guide of the Android Developer's site:
In general, the recommended strategy for all developers is to sign all of your applications with the same certificate, throughout the expected lifespan of your applications. There are several reasons why you should ...
python: Change the scripts working directory to the script's own directory
...t be mashed into one big directory. Put your code in some known location (site-packages or /var/opt/udi or something) separate from your data. Use good version control on your code to be sure that you have current and previous versions separated from each other so you can fall back to previous ver...
file_put_contents - failed to open stream: Permission denied
...
The other option
is that you can make Apache (www-data), the owner of the folder
sudo chown -R www-data:www-data /var/www
that should make file_put_contents work now. But for more security you better also set the permissions like below
find /var/www -type d -print0 | xa...
How do I make HttpURLConnection use a proxy?
...ctively. The following basic example illustrates it:
String url = "http://www.google.com/",
proxy = "proxy.mydomain.com",
port = "8080";
URL server = new URL(url);
Properties systemProperties = System.getProperties();
systemProperties.setProperty("http.proxyHost",proxy);
systemPropert...
How to validate an Email in PHP?
...
See the notes at http://www.php.net/manual/en/function.ereg.php:
Note:
As of PHP 5.3.0, the regex extension is deprecated in favor of
the PCRE extension. Calling this
function will issue an E_DEPRECATED
notice. See the list of differen...
What are the “standard unambiguous date” formats for string-to-date conversion in R?
... Well, not quite. As I answered in a few other questions on this site, mm-dd is not a date (neither is mm-yy or mm-yyyy). You cannot parse what it is not there.
– Dirk Eddelbuettel
May 23 at 18:44
...
Position of least significant bit that is set
...ion discussion attached. My favourite solution for your problem (from that site) is «multiply and lookup»:
unsigned int v; // find the number of trailing zeros in 32-bit v
int r; // result goes here
static const int MultiplyDeBruijnBitPosition[32] =
{
0, 1, 28, 2, 29, 14, 24, 3, 30...
How to programmatically cause a core dump in C/C++
...ng: check out glibc backtrace() and backtrace_symbols() functions:
http://www.gnu.org/s/libc/manual/html_node/Backtraces.html
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UINavigationBar custom back button without title
...work and some of the community customs here. If you need any help with the site's functions, don't be afraid to search up, then ask a question on Meta Stack Overflow (if you still couldn't find an answer). Thanks, and good luck! Anyway, you can post your images now... :)
– Qant...