What will be the output of the following PHP code?
<?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

Question

What will be the output of the following PHP code?

 <?php  $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

A.

Array ( [d] => yellow )

B.

Array ( [c] => blue )

C.

Array ( [a] => red )

D.

Array ( [e] => yellow )

Correct Answer :

A.

Array ( [d] => yellow )

The array_diff() function compares the values of two (or more) arrays, and returns the differences.

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If the directive session.cookie_lifetime is set to 3600, the cookie will live until..

Discuss this answer

Which one of the following function is useful for producing a timestamp based on a given date and time.

A.

time()

B.

mktime()

C.

mrtime()

D.

mtime()

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $i = 0;
while ((--$i > ++$i) - 1){       print $i;
} ?>

D. error

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $color1 = red;
$color2 = green;
echo $color1 . $color2;
?>

A. red

B. green

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

A.

Array ( [d] => yellow )

B.

Array ( [c] => blue )

C.

Array ( [a] => red )

D.

Array ( [e] => yellow )

Discuss this answer

What is the default time(in seconds) for which session data is considered valid?

A. 1800

B. 3600

C. 1440

D. 1540

Discuss this answer

What is the default number of seconds that cached session pages are made available before the new pages are created?

A. 360

B. 180

C. 3600

D. 1800

Discuss this answer

What will be the output of the following code?


<?php 
$foo = 'Bob';              
$bar = &$foo;              
$bar = "My name is $bar";  
echo $bar;
echo $foo;
?>

A.

Error

B.

My name is BobBob

C.

My name is BobMy name is Bob

D.

My name is Bob Bob

Discuss this answer

Which one of the following function is used to start a session?

A.

start_session()

B.

session_start()

C.

session_begin()

D.

begin_session()

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $color1 = red;
$color2 = green;
echo $color1.$color2;
?>

B. red

C. green

D. error

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $i = 2;
while (++$i){       while (--$i > 0)        print $i;
} ?>

A. 210

B. 10

Discuss this answer

What will be the output of the following PHP code ?

 <?php  define(NEW_GOOD_NAME_CONSTANT, I have a value);
define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);
�echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;
?>

C. ERROR

Discuss this answer

What will be the output of the following PHP code ?

 <?php  class Constants{    define('MIN_VALUE', '0.0');
define('MAX_VALUE', '1.0');
public static function getMinValue()    {        return self::MIN_VALUE;
}    public static function getMaxValue()    {        return self::MAX_VALUE;
}}echo Constants::getMinValue();
echo Constants::getMaxValue();
?>

A. 0.01.0

B. 01

D. ERROR

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($a));
?>

A.

Array ( [A] => 2 [Cat] => 1 [Dog] => 2 )

B.

Array ( [A] => 2 [Cat] => 2 [Dog] => 1 )

C.

Array ( [A] => 1 [Cat] => 1 [Dog] => 2 )

D.

Array ( [A] => 2 [Cat] => 1 [Dog] => 1)

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $color1 = red;
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>

A. 1grey

B. grey

C. 0

Discuss this answer

PHP files have a default file extension of..

A.

.html

B.

.xml

C.

.php

D.

.ph

E.

.asp

F.

.jsp

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $color = red;
echo $color . red ;
?>

B. red

C. error

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>

A.

green

B.

red

C.

redArray( [c] => green [c] => blue )

D.

redArray( [b] => green [c] => blue )

Discuss this answer

The date() function returns ___ representation of the current date and/or time.

B. String

D. Float

Discuss this answer

What will be the output of the following PHP code ?

 <?php  define('GOOD_OCTAL', 0700);
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?>

C. ERROR

Discuss this answer

How many ways can a session data be stored?

A. 3

B. 4

C. 5

D. 6

Discuss this answer

Which one of the following format parameter can be used to identify timezone?

A. T

B. N

C. E

D. I

Discuss this answer

What will be the output of the following PHP code ?

 <?php  define(VAR_NAME,test);
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>

A. test

Discuss this answer

What will be the output of the following PHP code ?

 <?php  define(GREETING, PHP is a scripting language, true);
echo GREETING;
echo 
echo GREETING;
?>

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a1 = array_fill(3, 4, blue);
$b1 = array_fill(0, 1, red);
print_r($a1);
echo 
;
print_r($b1);
?>

A.

Array ( [3] => blue [4] => blue) 
Array ( [0] => red )

B.

Array ( [4] => blue [5] => blue [6] => blue) 
Array ( [0] => red )

C.

Array ( [3] => blue [4] => blue [5] => blue [6] => blue ) 
Array ()

D.

Array ( [3] => blue [4] => blue [5] => blue [6] => blue ) 
Array ( [0] => red )

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a1 = array(red, green);
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?>

A.

Array ( [0] => red [1] => green)

B.

Array ( [0] => blue [1] => yellow [2] => red [3] => green )

C.

Array ( [0] => red [1] => green [2] => blue [3] => yellow )

D.

Array ( [0] => blue [1] => yellow )

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $i = 5;
while (--$i > 0 && ++$i){       print $i;
} ?>

A. 5

C. 54321

D. error

Discuss this answer

What will be the output of the following PHP code ?

 <?php  $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>

C. 0

D. 1

Discuss this answer

Which function displays the web pages most recent modification date?

A.

lastmod()

B.

getlastmod()

C.

last_mod()

D.

get_last_mod()

Discuss this answer

What will be the output of the following PHP code?

 <?php  $a = array(red, green, blue);
array_pop($a);
print_r($a);
?>

A.

Array ( [0] => red [1] => green )

B.

Array ( [0] => green [1] => blue )

C.

Array ( [0] => red [1] => blue )

D.

Array ( [0] => blue [1] => blue )

Discuss this answer

Answer 1

A. 3600 sec

Answer 2

B. 3600 min

Answer 3

C. 3600 hrs

Answer 4

D. the browser is restarted

Answer 5

A. 00000000000000000000….infinitely

Answer 6

B. -1-1-1-1-1-1-1-1-1-1…infinitely

Answer 7

C. no output

Answer 8

C. red green

Answer 9

D. redgreen

Answer 10

A. red green

Answer 11

C. no output

Answer 12

D. infinite loop

Answer 13

A. I have a value

Answer 14

B. I have a valueI have a value

Answer 15

D. I have a valueNEW_GOO_NAME_CONSTANTS

Answer 16

C. No output

Answer 17

D. red1grey

Answer 18

A. red red

Answer 19

D. nothing

Answer 20

A. Integer

Answer 21

C. Boolean

Answer 22

A. 448
384

Answer 23

B. 0700
0800

Answer 24

D. No output

Answer 25

B. testtest

Answer 26

C. testvalue

Answer 27

D. error, constant value cannot be changed

Answer 28

A. PHP is a scripting language

Answer 29

B. GREETING
GREEtING

Answer 30

C. GREETING

Answer 31

D. PHP is a scripting language
PHP is a scripting language

Answer 32

B. 555555555…infinitely

Answer 33

A. redgreen

Answer 34

B. red green

What will be the output of the following PHP code?
<?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

Correct Answer :

Show all Php Programming MCQ

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If the directive session.cookie_lifetime is set to 3600, the cookie will live until..

Which one of the following function is useful for producing a timestamp based on a given date and time.

What will be the output of the following PHP code ?
<?php $i = 0;
while ((--$i > ++$i) - 1){ print $i;
} ?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1 . $color2;
?>

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<?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
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?>

What is the default time(in seconds) for which session data is considered valid?

What is the default number of seconds that cached session pages are made available before the new pages are created?

What will be the output of the following code?

<?php
$foo = 'Bob';
$bar = &$foo;
$bar = "My name is $bar";
echo $bar;
echo $foo;
?>

Which one of the following function is used to start a session?

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1.$color2;
?>

What will be the output of the following PHP code ?
<?php $i = 2;
while (++$i){ while (--$i > 0) print $i;
} ?>

What will be the output of the following PHP code ?
<?php define(NEW_GOOD_NAME_CONSTANT, I have a value);
define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);
�echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;
?>

What will be the output of the following PHP code?
<?php $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($a));
?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>

PHP files have a default file extension of..

What will be the output of the following PHP code ?
<?php $color = red;
echo $color . red ;
?>

What will be the output of the following PHP code?
<?php $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>

The date() function returns ___ representation of the current date and/or time.

What will be the output of the following PHP code ?
<?php define('GOOD_OCTAL', 0700);
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?>

How many ways can a session data be stored?

Which one of the following format parameter can be used to identify timezone?

What will be the output of the following PHP code ?
<?php define(VAR_NAME,test);
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>

What will be the output of the following PHP code ?
<?php define(GREETING, PHP is a scripting language, true);
echo GREETING;
echo
echo GREETING;
?>

What will be the output of the following PHP code?
<?php $a1 = array_fill(3, 4, blue);
$b1 = array_fill(0, 1, red);
print_r($a1);
echo
;
print_r($b1);
?>

What will be the output of the following PHP code?
<?php $a1 = array(red, green);
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?>

What will be the output of the following PHP code ?
<?php $i = 5;
while (--$i > 0 && ++$i){ print $i;
} ?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>

Which function displays the web pages most recent modification date?

What will be the output of the following PHP code?
<?php $a = array(red, green, blue);
array_pop($a);
print_r($a);
?>

Also checkout

What will be the output of the following PHP code? <?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);$a2 = array(e=>red, f=>green, g=>blue);$result = array_diff($a1, $a2);print_r($result);?>

Correct Answer :

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If the directive session.cookie_lifetime is set to 3600, the cookie will live until..

Which one of the following function is useful for producing a timestamp based on a given date and time.

What will be the output of the following PHP code ? <?php $i = 0;while ((--$i > ++$i) - 1){ print $i;} ?>

What will be the output of the following PHP code ? <?php $color1 = red;$color2 = green;echo $color1 . $color2;?>

What will be the output of the following PHP code? <?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);$a2 = array(e=>red, f=>green, g=>blue);$result = array_diff($a1, $a2);print_r($result);?>

What is the default time(in seconds) for which session data is considered valid?

What is the default number of seconds that cached session pages are made available before the new pages are created?

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Which one of the following function is used to start a session?

What will be the output of the following PHP code ? <?php $color1 = red;$color2 = green;echo $color1.$color2;?>

What will be the output of the following PHP code ? <?php $i = 2;while (++$i){ while (--$i > 0) print $i;} ?>

What will be the output of the following PHP code ? <?php define(NEW_GOOD_NAME_CONSTANT, I have a value);define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);�echo NEW_GOOD_NAME_CONSTANT;echo OLD_BAD_NAME_CONSTANT;?>

What will be the output of the following PHP code? <?php $a = array(A, Cat, Dog, A, Dog);print_r(array_count_values($a));?>

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PHP files have a default file extension of..

What will be the output of the following PHP code ? <?php $color = red;echo $color . red ;?>

What will be the output of the following PHP code? <?php $a = array(a=>red, b=>green, c=>blue);echo array_shift($a);print_r ($a);?>

The date() function returns ___ representation of the current date and/or time.

What will be the output of the following PHP code ? <?php define('GOOD_OCTAL', 0700);define('BAD_OCTAL', 0600);print GOOD_OCTAL;print '';print BAD_OCTAL;?>

How many ways can a session data be stored?

Which one of the following format parameter can be used to identify timezone?

What will be the output of the following PHP code ? <?php define(VAR_NAME,test);${VAR_NAME} = value;echo VAR_NAME;echo ${VAR_NAME};?>

What will be the output of the following PHP code ? <?php define(GREETING, PHP is a scripting language, true);echo GREETING;echo echo GREETING;?>

What will be the output of the following PHP code? <?php $a1 = array_fill(3, 4, blue);$b1 = array_fill(0, 1, red);print_r($a1);echo ;print_r($b1);?>

What will be the output of the following PHP code? <?php $a1 = array(red, green);$a2 = array(blue, yellow);print_r(array_merge($a1, $a2));?>

What will be the output of the following PHP code ? <?php $i = 5;while (--$i > 0 && ++$i){ print $i;} ?>

What will be the output of the following PHP code ? <?php $color1 = red;$color2 = red;echo $color1 + $color2;?>

Which function displays the web pages most recent modification date?

What will be the output of the following PHP code? <?php $a = array(red, green, blue);array_pop($a);print_r($a);?>

Also checkout

What will be the output of the following PHP code?
<?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

What will be the output of the following PHP code ?
<?php $i = 0;
while ((--$i > ++$i) - 1){ print $i;
} ?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1 . $color2;
?>

What will be the output of the following PHP code?
<?php $a1 = array(a=>red, b=>green, c=>blue, d=>yellow);
$a2 = array(e=>red, f=>green, g=>blue);
$result = array_diff($a1, $a2);
print_r($result);
?>

What will be the output of the following code?

<?php
$foo = 'Bob';
$bar = &$foo;
$bar = "My name is $bar";
echo $bar;
echo $foo;
?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1.$color2;
?>

What will be the output of the following PHP code ?
<?php $i = 2;
while (++$i){ while (--$i > 0) print $i;
} ?>

What will be the output of the following PHP code ?
<?php define(NEW_GOOD_NAME_CONSTANT, I have a value);
define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);
�echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;
?>

What will be the output of the following PHP code?
<?php $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($a));
?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>

What will be the output of the following PHP code ?
<?php $color = red;
echo $color . red ;
?>

What will be the output of the following PHP code?
<?php $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>

What will be the output of the following PHP code ?
<?php define('GOOD_OCTAL', 0700);
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?>

What will be the output of the following PHP code ?
<?php define(VAR_NAME,test);
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>

What will be the output of the following PHP code ?
<?php define(GREETING, PHP is a scripting language, true);
echo GREETING;
echo
echo GREETING;
?>

What will be the output of the following PHP code?
<?php $a1 = array_fill(3, 4, blue);
$b1 = array_fill(0, 1, red);
print_r($a1);
echo
;
print_r($b1);
?>

What will be the output of the following PHP code?
<?php $a1 = array(red, green);
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?>

What will be the output of the following PHP code ?
<?php $i = 5;
while (--$i > 0 && ++$i){ print $i;
} ?>

What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>

What will be the output of the following PHP code?
<?php $a = array(red, green, blue);
array_pop($a);
print_r($a);
?>