PHP Operators

Assignment operators

PHP

Q 1: What will be the output of the following program? 
main();
{
static int var = 4 ;
printf("%d", var--);
  
   if(var)
     main();
}

  • A4444........until stack overflow
  • B4321
  • CCompiler error
  • DLinker Error

Q 2: What is the return type of a function in C?

  • Avoid
  • Bint
  • Cchar
  • DBoth A and B and C

Q 3: What is the difference between call by value and call by reference in C language?

  • ACall by value passes the address of the argument to the function, while call by reference passes a copy of the argument value.
  • BCall by value passes a copy of the argument value to the function, while call by reference passes a reference to the argument variable.
  • CCall by value and call by reference are the same thing.
  • DCall by value passes a reference to the argument variable, while call by reference passes a copy of the argument value.