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Is multiplication and division using shift operators in C actually faster?
...with the core i7:
(from http://software.intel.com/en-us/forums/showthread.php?t=61481)
The latency is 1 cycle for an integer addition and 3 cycles for an integer multiplication. You can find the latencies and thoughput in Appendix C of the "Intel® 64 and IA-32 Architectures Optimization Refere...
Why not use tables for layout in HTML? [closed]
...sy to resolve with master pages or user controls in .net, include files in php or classic asp, etc ... Anybody who copies the company layout like this deserves an a** kicking! ;-)
– John MacIntyre
May 20 '09 at 14:30
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What is the difference between native code, machine code and assembly code?
...ictly speaking, most dynamically-typed languages — such as Perl, Python, PHP and Ruby — are also managed code. However, they are not commonly described as such, which shows that managed code is actually somewhat of a marketing term for the really big, serious, commercial programming environments...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
...ally have a PaaS offering, Elastic Beanstalk, that supports Ruby, Node.js, PHP, Python, .NET and Java. I think generally most people, when they see "AWS", jump to things like EC2 and S3 and EBS, which are definitely IaaS offerings
...
How can I implement an Access Control List in my Web MVC application?
...r" would be a service, which might knit together some domain object with a PHPMailer or SwiftMailer, or your own mail-sender component.
Another source of services are abstraction on to on domain and data access layers. They are created to simplify the code used by controllers. For example: creating...
How to create GUID / UUID?
...a UUID from Truly Random or Pseudo-Random Numbers: rfc-archive.org/getrfc.php?rfc=4122
– Jason DeFontes
Sep 19 '08 at 20:28
9
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What characters are allowed in an email address?
...822 addresses was a mere 3.7k.
See also: RFC 822 Email Address Parser in PHP.
The formal definitions of e-mail addresses are in:
RFC 5322 (sections 3.2.3 and 3.4.1, obsoletes RFC 2822), RFC 5321, RFC 3696,
RFC 6531 (permitted characters).
Related:
The true power of regular expressions
...
Best practices for API versioning? [closed]
...g platforms/languages commonly used to implement web services (Java, .NET, PHP, Perl, Rails, etc.) allow easy binding of web service end-point(s) to a base URI. This way it's easy to gather and keep a collection of files/classes/methods separate across different API versions.
From the API users PO...
What is in your .vimrc? [closed]
...
Refer to this script (vim.org/scripts/script.php?script_id=1349) to get the available colors. May need to turn on 256 color support for vim to get a wider variety.
– Brian Wigginton
Dec 13 '10 at 6:33
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What is a CSRF token ? What is its importance and how does it work?
...application doesn’t distinguish
between POST and GET requests (e.g. in PHP by using $_REQUEST instead
of $_POST). Don’t do that! Data altering requests could be submitted
as easy as <img src="http://a.com/tweet?tweet=This+is+really+bad">,
embedded in a malicious website or even an ...