PHP Data types specify the different types of data that are supported in PHP language
There are total 8 data types supported in PHP language, which are categorized into three main types:-
Scalar Type:-Boolean, integer, float, string
Compound Type:-Array and object
Special Type:-resource and NULL
A Boolean data type can have two possible values, either True or False. Example:-
An Integer data type is used to store any non-decimal numeric value within the range -2,147,483,648 to 2,147,483,647. Example:-
Float data type is used to store any decimal numeric value. A float(floating point) value can also be either negative or positive. Example:-
String data type in PHP and in general, is a sequence of characters(or anything, it can be numbers and special characters too) enclosed within quotes. You can use single or double quotes.
NULL data type is a special data type which means nothing. It can only have one
value, and that is NULL.
If you create any variable and do not assign any value to it, it will automatically
have NULL stored in it.
Also, we can use NULL value to empty any variable.