PHP, created by Rasmus Lerdorf, is a scripting/programming language created for web development. Ever since it was launched under the PHP license, it is used by almost 244 million websites and more than 2 million web servers all over the world. It is a free software that was released where PHP commands can be embedded directly into any HTML source document.
Data Types
PHP makes use of a 32 bit or 63 bit signed integer. Unlike other programming languages, unsigned integers can be changed into signed integers depending in situations. This is done through the use of positive and negative integer variables, binary notations, etc.
Functions of PHP
The very reason as to why PHP is widely used among millions of sites and web servers worldwide is that it has effective base functions and there are several useful extensions. PHP has the documented functions needed but users can also access the library for a wide variety of options.