Usually, a variable can store a single data type and a single scalar data type can only store a single value. There are many situations where we might need to group some data types together as a single complex data type. For example, we want to store some student information together in a student data type. We need the student name, address, phone number, email, date of birth, current class, and so on. In order to store each student record to a unique student data type, we will need a special structure which will allow us to do that. This can be easily achieved by struct. In other words, a struct is a container of values which is typically accessed using names. Though structs are very popular in C programming language, we can use a similar concept in PHP as well. We are going to explore that in coming chapters.