PHP Datatype

Data Types define the type of data a variable can store. PHP allows eight different types of data types. All of them are discussed below. There are pre-defined, user-defined, and special data types.

The predefined data types are:

• Boolean
• Integer
• Double
• String

The user-defined (compound) data types are:

• Array
• Objects

The special data types are:

• NULL
• resource