Addition of Two Numbers Using Function in PHP

Addition of Two Numbers Using Function in PHP. Using this program we can print the addition of two numbers using function. A function is a piece of code that takes another input in the form of a parameter, processes it, and then returns a value. Although these are built-in functions, PHP also allows you to construct your own.

function num(int $a, int $b)
return $a + $b;
echo num(1, "1");
return num




Return Statement in PHP

Returns control of the program to the calling module. Following the invocation of the called module, execution restarts at the expression. When called from within a function, the return statement terminates the current function’s execution and returns its argument as the function call’s value. 

The intended data types of the result that a function or a class method should return are specified in the return type declaration. PHP, for example, can convert the integer result into a string before returning the function result because of the return type declaration. Using the return statement with a value or object, a function can return a value. 

Return signals the conclusion of the function’s execution and returns the value to the calling code. No, a function cannot have two returns; the first return will terminate the function, requiring you to build an object.

Function in PHP

In PHP, a function is a reusable piece of code that performs a certain operation. When called, functions can either return values or just conduct an action without returning any value. PHP includes around 700 built-in functions that accomplish various tasks. PHP offers us with two kinds of functions: Built-in functions: PHP comes with a plethora of built-in library functions. User Defined Functions: In addition to the built-in functions, PHP allows us to write our own customised functions, known as user-defined functions.