PHP If Else/Else If Statement Easy Questions and Answers

PHP If Else/Else If Statement

What will be the output of the following PHP code?

<?php
$str;
if ($str)
    print "Interview" ;
else
    print "Mania";
?>

Uninitialized str is set to 0, thus if condition fails.

What will be the output of the following PHP code ?

<?php
$n = 5;
if ($n++)
    print "Hello Interview Mania";
else
    print "Hey Interview Mania";
?>

n is incremented after if which evaluates to false.

What will be the output of the following PHP code ?

<?php
$n;
if ($n == 0)
    print "Inter" ;
else
    print "Mania";
    print "view"
?>

else condition without brackets performs the following statements only.

What will be the output of the following PHP code ?

<?php
$num = 12;
if (echo $num)
    print "True";
else
    print "False"; 
?>

echo does not return anything so if condition is empty.

What will be the output of the following PHP code ?

<?php
$num = 15;
if (print $num)
    print "Interview";
else
    print "Mania"; 
?>

print returns 1 if it prints anything.