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

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

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2.
What will be the output of the following PHP code ? 
<?php
$x = 0;
if ($x++)
    print "hi";
else
    print "how are u";
?>

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3.
What will be the output of the following PHP code ? 
<?php
$x;
if ($x == 0)
    print "hi" ;
else
    print "how are u";
    print "hello"
?>

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4.
What will be the output of the following PHP code ? 
<?php
$x = 0;
if ($x == 1)
    if ($x >= 0)
	print "true";
    else
	print "false"; 
?>

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5.
What will be the output of the following PHP code ? 
<?php
$a = 1;
if ($a--)
    print "True";
if ($a++)
    print "False"; 
?>

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6.
What will be the output of the following PHP code ? 
<?php
$a = 1;
if (echo $a)
    print "True";
else
    print "False"; 
?>

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7.
What will be the output of the following PHP code ? 
<?php
$a = 1;
if (print $a)
    print "True";
else
    print "False"; 
?>

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8.
What will be the output of the following PHP code ? 
<?php
$a = 10;
if (1) 
    print "all";
else 
    print "some"
else 
    print "none";
?>

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9.
What will be the output of the following PHP code ? 
<?php
$a = 10;
if (0) 
    print "all";
 if 
 else 
     print "some"
?>

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10.
What will be the output of the following PHP code ? 
<?php
$a = "";
if ($a) 
    print "all";
if 
else 
    print "some";
?>

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