PHP Switch Statement Easy Questions and Answers

PHP Switch Statement

What will be the output of the following PHP code ?

<?php
$n = 128;
switch($n)
{
case "n":
    print "Welcome to";
    break;
case 128:
    print "Interview";
    break;
default:
    print "Mania";
}
?>

Correct Option: C

Downcasting does not happen in case,it compares only with its data type.

What will be the output of the following PHP code ?

<?php
$p = "1";
$p = 1;
$q = 1;
switch($p)
{
case $p * $q: 
    print "Hello";
    break;
case $p / $q:
    print "Hey";
    break;
default:
    print "Bye";
}
?>

Correct Option: A

It checks the first case, when it finds it equal it will perform it breaks out.

What will be the output of the following PHP code ?

<?php
$opt = "1";
switch($opt)
{
case 1:
    break;
    print "First Statement";
case 2:
    print "Second Statement";
    break;
default:
    print "Third Statement";
}
?>

Correct Option: D

As break is provided before print statement in case 1 it breaks the loop before printing.

What will be the output of the following PHP code ?

<?php
$opt = "1";
switch ($opt)
{
case 1:
    print "Hello ";
case 2:
    print "Interview ";
default:
    print "Mania ";
}
?>

Correct Option: A

As break is not provided it executes all the cases.