Question

What are the different types of variables present in PHP?

Answer 1

There are 8 primary data types in PHP which are used to construct the variables. They are:

• Integers: Integers are whole numbers without a floating-point. Ex: 1253.
• Doubles: Doubles are floating-point numbers. Ex: 7.876
• Booleans: It represents two logical states- true or false.
• NULL: NULL is a special type that only has one value, NULL. When no value is assigned to a variable, it can be assigned with NULL.
• Arrays: Array is a named and ordered collection of similar type of data. Ex: $colors = array("red", "yellow", "blue");
• Strings: Strings are a sequence of characters. Ex: “Hello InterviewBit!”
• Resources: Resources are special variables that consist of references to resources external to PHP(such as database connections).
• Objects: An instance of classes containing data and functions. Ex: $mango = new Fruit();