Variables and Datatypes.

Reference types provide excellent flexibility and performance of large structures. This is the reason that classes are reference types and structs are data value types...

C# distinguishes between two (2) different data types categories: value and reference types. Value data types directly store their value while reference data types store a reference to their value....

One of the key features of object-oriented programming (OOP) is the ability to create new data types in which the data and the implementation of operations are bound together...

We're going to be dealing with type juggling in this article. This is the process of instructing PHP how to handle the value after the type juggling. Type juggling can do absolutely all sorts, from converting integers to floats, arrays to objects, and even strings to binary as of PHP 5.2.1.

A data type represents the kind of information that a particular field should or must hold.

If you intend to use a certain category of value over and over again, you can reserve a section of memory for that value.