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
if (!print "First")
    if (print "Second")
print "Third";
?>

Print returns true and thus the first if statement also is not executed.

What will be the output of the following PHP code ?

<?php
if (print "Ninth" - 9)
    print "Tenth"
?>

print returns true and when 9 is subtracted it is syntax error.

What will be the output of the following PHP code ?

<?php
$num = 1;
if ($num--)
    print "First"
    $num--;
else
    print "Second"
?>

The if statement has no brackets and it expects a else/else if after a if.

What will be the output of the following PHP code ?

<?php
$p = 25;
$q = 26;
if ($p < ++$p || $q < ++$q)
    print "if statement executed...";
else
    print "else statement executed...";
?>

The operator precedence of ++ is higher than <,thus the increment happens first and then compared.

What will be the output of the following PHP code ?

<?php
$n = 12;
if ($n-- - --$n - $n)
    print "First";
else
    print "Second";
?>

Computing the expression in the if clause,it sums upto to 2 which is a positive value.