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Generate random 5 characters string
...reach (array_rand($seed, 5) as $k) $rand .= $seed[$k];
Example
And, for one based on the clock (fewer collisions since it's incremental):
function incrementalHash($len = 5){
$charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
$base = strlen($charset);
$result = '';...
UnicodeDecodeError when redirecting to file
...n the following two points:
Characters are mostly unrelated to computers: one can draw them on a chalk board, etc., like for instance بايثون, 中蟒 and ????. "Characters" for machines also include "drawing instructions" like for example spaces, carriage return, instructions to set the writi...
Git Symlinks in Windows
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Here's a PowerShell one I just put together - gist.github.com/ferventcoder/7995025
– ferventcoder
Dec 16 '13 at 21:48
3
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How to read data from a zip file without having to unzip the entire file
...pulate the list of entries. At that point, if your app calls Extract() on one entry, DotNetZip seeks to the proper place in the zip file, and decompresses the data for just that entry.
– Cheeso
May 11 '11 at 19:57
...
Why check both isset() and !empty()
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I've no idea where I got that idea from. Plus one'd.
– karim79
Dec 30 '10 at 4:27
8
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Rename a dictionary key
....pop(old_key)
For an OrderedDict, I think you must build an entirely new one using a comprehension.
>>> OrderedDict(zip('123', 'abc'))
OrderedDict([('1', 'a'), ('2', 'b'), ('3', 'c')])
>>> oldkey, newkey = '2', 'potato'
>>> OrderedDict((newkey if k == oldkey else k, v...
iOS 7 - Failing to instantiate default view controller
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Create a new Storyboard in your project, name it something like Main_iPhoneV2 (or iPadV2 depending on your original storyboard style)
Open the broken storyboard, click anywhere in the white area and press command-a, then command-c (select all and copy)
Open your new storyboard and press command-v...
What is The Rule of Three?
...t does not take into account what name pointed to before the assignment,
sooner or later you will get memory leaks all over the place.
Explicit definitions
Since memberwise copying does not have the desired effect, we must define the copy constructor and the copy assignment operator explicitly to m...
How to open a new window on form submit
...
onclick may not be the best event to attach that action to. Anytime anyone clicks anywhere in the form, it will open the window.
<form action="..." ...
onsubmit="window.open('google.html', '_blank', 'scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,status=no');retur...
Re-entrant locks in C#
...u're pretty much guaranteed to get deadlock issues at some point.
Here is one good webpage describing thread synchronisation in .NET: http://dotnetdebug.net/2005/07/20/monitor-class-avoiding-deadlocks/
Also, lock on as few objects at a time as possible. Consider applying coarse-grained locks where...