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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...
static $counter = 0;
$counter += sqrt($num);//imagine we need to take root of our sheep each time
echo "$counter sheep jumped over fence";
}
Result:
2 sheep jumped over fence
5 sheep jumped over fence
9 sheep jumped over fence
Static function is kinda 'shared' between methods of objects ...
Can I Replace Apache with Node.js?
I have a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm w...
Smooth scrolling when clicking an anchor link
...ctor, so that it doesn't run every single time an anchor is clicked:
var $root = $('html, body');
$('a[href^="#"]').click(function () {
$root.animate({
scrollTop: $( $.attr(this, 'href') ).offset().top
}, 500);
return false;
});
If you want the URL to be updated, do it wit...
Android: Storing username and password?
...ld say it's risky to persist password information as is in preferences. On rooted phones it is possible to access the preferences file of an app. The least you can do is obfuscate the password.
– Jayesh
Dec 18 '09 at 18:15
...
How to import CSV file data into a PostgreSQL table?
...uper user access; it complaints on my Fedora 16 when using COPY with a non-root account.
– asksw0rder
Oct 15 '12 at 17:07
81
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How to find out what group a given user has?
...`hostname -s`
for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '{print$1}' | sed 's/[[:space:]]/,/g'`; do groups $i; done|sed s/\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt
sudo cat /etc/sudoers| grep -v "^#"|awk '{print $1}'|grep -...
How to flatten tree via LINQ?
...licit stack:
public static IEnumerable<MyNode> Traverse(this MyNode root)
{
var stack = new Stack<MyNode>();
stack.Push(root);
while(stack.Count > 0)
{
var current = stack.Pop();
yield return current;
foreach(var child in current.Elements)
...
What is an 'endpoint' in Flask?
...
Hows about url_for for root? I catched error Could not build url for endpoint ''
– TomSawyer
Sep 19 '17 at 8:28
...
Android SharedPreference security
...estrict access to them, the same as on any Linux/Unix system.
Anyone with root level access to the device will be able to see them, as root has access to everything on the filesystem. Also, any application that runs with the same UID as the creating app would be able to access them (this is not usu...
Is there a unique Android device ID?
...on factory reset". Use at your own risk, and it can be easily changed on a rooted phone.
– Seva Alekseyev
Jun 23 '10 at 14:21
32
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