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How to copy an object in Objective-C
...lways with reference types, there are two notions of "copy". I'm sure you know them, but for completeness.
A bitwise copy. In this, we just copy the memory bit for bit - this is what NSCopyObject does. Nearly always, it's not what you want. Objects have internal state, other objects, etc, and ofte...
What is the function __construct used for?
...structor).
You are not required to define a constructor in your class, but if you wish to pass any parameters on object construction then you need one.
An example could go like this:
class Database {
protected $userName;
protected $password;
protected $dbName;
public function __construct ...
How can I store my users' passwords safely?
... salted hashes: add pepper
If you want extra security, the security folks now (2017) recommend adding a 'pepper' to the (automatically) salted password hashes.
There is a simple, drop in class that securely implements this pattern, I recommend:
Netsilik/PepperedPasswords
(github).
It comes with...
Redirecting from HTTP to HTTPS with PHP
...
Try something like this (should work for Apache and IIS):
if (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] === "off") {
$location = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
header('HTTP/1.1 301 Moved Permanently');
header('Location: ' . $location);
...
Count characters in textarea
...why your code doesn't work if what you posted was incomplete, but without knowing that I can't know for sure.
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-1.5.js"></script>
<script>
function countChar(val) {
var...
Shared-memory objects in multiprocessing
...s giant array as input (together with some other parameters). func with different parameters can be run in parallel. For example:
...
Get value of a string after last slash in JavaScript
...
When I know the string is going to be reasonably short then I use the following one liner... (remember to escape backslashes)
// if str is C:\windows\file system\path\picture name.jpg
alert( str.split('\\').pop() );
alert pops up ...
Cooler ASCII Spinners? [closed]
...
you get extra points if you can make a popping sound with they system speaker!
– RCIX
Apr 22 '10 at 1:51
4
...
Two way/reverse map [duplicate]
...rd thing in python where I need to keep track of who's talking to whom, so if Alice --> Bob, then that implies that Bob --> Alice.
...
What is a Python equivalent of PHP's var_dump()? [duplicate]
... is to do
from pprint import pprint
pprint(globals())
pprint(locals())
If you are running in CGI, a useful debugging feature is the cgitb module, which displays the value of local variables as part of the traceback.
shar...