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

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41.
What will be the output of the following PHP code ? 
<?php
switch($b)
{
case 2:
    print "hello";
    break;
case 1:
    print "hi";
    break;
}
?>

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42.
What will be the output of the following PHP code ? 
<?php
switch($b)
{
case 2:
    print "hello";
    break;
case b:
    print "hi";
    break;
}
?>

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43.
What will be the output of the following PHP code ? 
<?php
while()
{
    print "hi";
}
?>

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44.
What will be the output of the following PHP code ? 
<?php
do
{
    print "hi";
}
while(0);
print "hello";
?>

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45.
What will be the output of the following PHP code ? 
<?php
$i = 0
while ($i < 3)
{
    $i++;
}
print $i;
?>

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46.
What will be the output of the following PHP code ? 
<?php
$i = 0
do
{
    $i++;
}
while ($i < 3);
print $i;
?>

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47.
What will be the output of the following PHP code ? 
<?php
$i = 0
while ($i++)
{
    print $i;
}
print $i;
?>

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48.
What will be the output of the following PHP code ? 
<?php
$i = "";
while($i)
{   
    print "hi";
}
print "hello";
?>

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49.
What will be the output of the following PHP code ? 
<?php
$i = "";
while ($i)
{   
    print "hi";
} 
while($i < 8)
    $i++;
print "hello";
?>

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50.
What will be the output of the following PHP code ? 
<?php
$i = 0;
while($i = 10)
{   
    print "hi";
}
print "hello";
?>

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