What are the types of variables present in PHP?

There are eight primary data types in PHP as shown below:

• Array: A named and ordered collection of data
• Boolean: A logical value (True or False)
• Double: Floating point numbers such as 5.1525
• Integer: Whole numbers without a floating point
• Object: An instance of classes, containing data and functions
• NULL: A special data type, supporting only the NULL data
• Resource: Special variables that hold references to external resources
• String: A sequence of characters such as, “Hello learners!”