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

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31.
What will be the output of the following PHP code ? 
<?php
$a = "hello";
if (strlen($a))
    print strlen($a);
else
    print "hi";
?>

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32.
What will be the output of the following PHP code ? 
<?php
$a = "1";
$b = "0";
if ((int)$a && $b) 
    print"hi";
else 
    print "hello";
?>

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33.
What will be the output of the following PHP code ? 
<?php
$a = "1";
switch ($a)
{
case 1:
    print "hi";
case 2:
    print "hello";
default:
    print "hi1";
}
?>

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34.
What will be the output of the following PHP code ? 
<?php
$a = "2";
switch ($a)
{
case 1:
    print "hi";
case 2:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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35.
What will be the output of the following PHP code ? 
<?php
$a = "1";
switch($a)
{
case 1:
    break;
    print "hi";
case 2:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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36.
What will be the output of the following PHP code ? 
<?php
$a = "1";
$a = 1;
$b = 1;
switch($a)
{
case $a * $b: 
    print "hi";
    break;
case $a / $b:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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37.
What will be the output of the following PHP code ? 
<?php
$a = 97;
switch(?$a)
{
case "a":
    print "hi";
    break;
case 97:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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38.
What will be the output of the following PHP code ? 
<?php
$b = 1;
switch($b)
{
case 1.0:
    print "hi";
    break;
case 1:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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39.
What will be the output of the following PHP code ? 
<?php
const $b = 1;
switch($b)
{
case 1:
    print "hi";
    break;
case 1:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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40.
What will be the output of the following PHP code ? 
<?php
$b = 1;
switch(print $b)
{
case 2:
    print "hello";
    break;
case 1:
    print "hi";
    break;
default:
    print "hi1";
}
?>

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