Category: technical

Checing if a visitor being a search bot is easy. You can use one of the globals, the $_SERVER to check if it contains bot-like string. For example, many …

Sometimes if you want to extract some records from a table you can use the following SQL syntax select * from table order by rand() limit 10 Different SQL …

Python provides a module timeit which allows quick timing of a piece of code. The straightforward example is given below. import timeit bar = timeit.Timer("a += 1", "a = …

The Iterator is an interface for external iterators or objects that can be iterated themselves internally. In PHP, it is defined as follows. Iterator extends Traversable { /* Methods …

Index Sort is not a general sorting algorithm because it has a limitation that is the ranges of the element have to be determined beforehand. The idea is simple. …