How to use variable and Expression in PHP
What are Variables?
Variable is used to store data that keeps on changing during the execution of a program. There are different types of data can be store in a program by web developer.
What are Expressions?
Expression is a combination of variables, constant, functions and operators.
Variables and its data types…
A variable is an identifier who changes the value throughout the execution of a program. The name refers to the variable and the data type refers to the type of data that a variable can store. PHP supports eight primitive data types.
Here you can see how to store data in variable and execute output.
$a= “ Hello \n ” ; // attempting multi-line output
$b= “ World \n ” ; // attempting multi-line output
Echo “<br>”; // to break a line