Integers − The whole numbers, consists of no decimal point as for example 2542
Doubles − The floating-point numbers consists of decimal point , like 8.51254 or 8.5.
Booleans − It consists of two possible values either true or false i.e (0 or 1).
NULL − The special type of data types that has single velue i.e : NULL.
Strings − The Strings are the sequence of characters , as for example ‘Welcome to Php Interview Questions ‘.
Objects − Simply the objects are the instances of the programmer-defined class , which incapsulate both other kinds of values and functions defined in the specific class .
Resources − Resources are special types of variables that hold the references to resources external to PHP (such as database connections).