Control Structures(Loop In PHP) MCQ question and answer with solution | PHP Programming

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21.
What will be the output of the following PHP code ? 
<?php
$x = 1;
if ($x = $x& 0)
    print $x ;
else
    print "how are u";
?>

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22.
What will be the output of the following PHP code ? 
<?php
$x = 1;
if ($x = $x& 0)
    print $x;
else
    break;
?>

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23.
What will be the output of the following PHP code ? 
<?php
$x = 10;
$y = 5;
$z = 3;
if ($x / $y / $z)
    print "hi";
else
    print "hello";
?>

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24.
What will be the output of the following PHP code ? 
<?php
if (!print "hi")
    if (print "hello")
print "hi";
?>

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25.
What will be the output of the following PHP code ? 
<?php
if (print "hi" - 1)
    print "hello"
?>

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26.
What will be the output of the following PHP code ? 
<?php
$x = 1;
if ($x--)
    print "hi"
    $x--;
else
    print "hello"
?>

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27.
What will be the output of the following PHP code ? 
<?php
$a = 10;
$b = 11;
if ($a < ++$a || $b < ++$b)
    print "hello";
else
    print "hi";
?>

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28.
What will be the output of the following PHP code ? 
<?php
$a = 2;
if ($a-- - --$a - $a)
    print "hello";
else
    print "hi";
?>

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29.
What will be the output of the following PHP code ? 
<?php
$a = 2;
if ($a-- - --$a - $a)
    print "hello";
else
    print "hi";
?>

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30.
What will be the output of the following PHP code ? 
<?php
$a = "hello";
if ($a.length)
    print $a.length;
else
    print "hi";
?>

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