Vigenere cipher

Vigenere cipher is an encryption technique consisting of a sequence of Caesar cipher each based on the letters of a secret text called a keyword. This mechanism is classified as polyalphabetic substitution.

In Caesar substitution each letter was shifted a number of positions down the alphabet. For example choosing the secret key to be . . . → Read More: Vigenere cipher

Caesar cipher

If you are the geeky type, like a lot of people I happen to know (…OK fine, yours truly also) sometime in your childhood you discovered some simple forms of encryption and became fascinated by them to the point where you started creating your own alphabets and childish methods of obscuring texts. And it’s . . . → Read More: Caesar cipher

Include vs require

As the website you just started expands to have more than one page and a decent number of lines of code you will start feeling a tingling sensation on your finger tips. At first, you won’t know what it is. But as your website sprouts more and more pages and the number of lines . . . → Read More: Include vs require

Adding Facebook Like button to all pages

Adding the Facebook Like button to a page is easy enough visiting this link and generating the code needed. However, things are pretty different when you have a lot of dynamic pages or you want to add it for your whole site in one place, in some file that you include in your whole . . . → Read More: Adding Facebook Like button to all pages

Single quotations vs double quotations in PHP

Strings in PHP can be specified in four different ways: single quoted, double quoted, heredoc syntax and (since PHP 5.3.0) nowdoc syntax, the first two of them being by far the most frequently used.

When do we use single quotations, when do we use double quotations and which are the differences between them?

. . . → Read More: Single quotations vs double quotations in PHP

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