Void

What is the basic role of VOID in Programming?

 

example with C++ -
void YourFunctionName()
{}

in php
function YourFunctionName()
{}

 

Void is a "function" that does something but never returns a value.. So you have no way of knowing if it was a success or not..

 

Consider following function...

void functionName (void) {
  
    // code here

}

Code (markup):

The void before function name says the function has no return type. The one within brackets says the function doesn't accept any parameters.

Check in comparison to the following,

This function has a return value, still accept no parameters.

int functionName (void) {

     if (success){
         return 1;
     }
     else{
         return 0;
     }
}

Code (markup):

This one accepts a single parameter but has no return type.

void functionName ( int *a) {

      (*a)++;
}

Code (markup):

 

MY concept is clear now thank u so much people for your sharing.