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
$n = 5;
if ($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
$str;
if ($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
$p = "0";
$q = "1";
if ((int)$p && $q) 
    print"Interview";
else 
    print "Mania";
?>

The expression is evaluated with values contained in the string, even without typecasting.

What will be the output of the following PHP code ?

<?php
if (print "Program ")
    print "Executed..." ;
else
    print "Not Executed...";
?>

Expression evaluates to true as print returns 1.

What will be the output of the following PHP code ?

<?php
$num = 5;
if ($num == 6)
    print "Interveiw" ;
else if($num = 6)
    print $num;
else
    print "Mania";
?>

Enters if else as first condition is false and thus num is set to 6.