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What is the correct answer?

4

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

A. 1234567891011121314….infinitely

B. 01234567891011121314…infinitely

C. no output

D. error

Correct Answer :

C. no output


The first condition itself fails thus the loop exits.

Related Questions

What is the correct answer?

4

If session.use_cookie is set to 0, this results in use of..

A. Session

B. Cookie

C. URL rewriting

D. Nothing happens

What is the correct answer?

4

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

A. 1800

B. 3600

C. 1440

D. 1540

What is the correct answer?

4

What will be the output of the following PHP code?
 <?php  $cars = array(Volvo, BMW, Toyota, Honda, Mercedes, Opel);
print_r(array_chunk($cars, 2));
?>

A.

Array ( [0] => Array ( [1] => Volvo [2] => BMW ) [1] => Array ( [1] => Toyota [2] => Honda ) [2] => Array ( [1] => Mercedes [2] => Opel ) )

B.

Array ( [1] => Array ( [1] => Volvo [2] => BMW ) [2] => Array ( [1] => Toyota [2] => Honda ) [3] => Array ( [1] => Mercedes [2] => Opel ) )

C.

Array ( [0] => Array ( [0] => Volvo [1] => Volvo ) [1] => Array ( [0] => BMW [1] => BMW ) [2] => Array ( [0] => Toyota [1] => Toyota ) )

D.

Array ( [0] => Array ( [0] => Volvo [1] => BMW ) [1] => Array ( [0] => Toyota [1] => Honda ) [2] => Array ( [0] => Mercedes [1] => Opel ) )

What is the correct answer?

4

If the format is F then which one of the following will be returned?

A. Complete text representation of month

B. Day of month, with leading zero

C. Daylight saving time

D. Day of month, without zeros

What is the correct answer?

4

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

A. redgreen

B. red green

C. 0

D. error

What is the correct answer?

4

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

A. 210

B. 10

C. no output

D. infinite loop

What is the correct answer?

4

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

A. PHP is a scripting language

B. __LINE__

C. 2

D. ERROR

What is the correct answer?

4

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 )

What is the correct answer?

4

Which one of the following is the very first task executed by a session enabled page?

A. Delete the previous session

B. Start a new session

C. Check whether a valid session exists

D. Handle the session

What is the correct answer?

4

What will be the output of the following PHP code ?
 <?php  /*echo Hello world;
*/ ?>

A. Hello world

B. Nothing

C. Error

D.

/* Hello world */

What is the correct answer?

4

What will be the output of the following PHP code?
 <?php   $fname = array(Peter, Ben, Joe);
$age = array(35, 37, 43);
$c = array_combine($fname, $age);
print_r($c);
?>

A.

Array ( Peter Ben Joe )

B.

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

C.

Array ( 35 37 43 )

D.

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )

What is the correct answer?

4

What will be the output of the following PHP code ?
 <?php  define('IF', 42);
echo IF: , IF;
?>

A. IF:42

B. No output

C. IF:

D. ERROR

What is the correct answer?

4

What will be the output of the following PHP code?
     <?php      echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?>

A. TRUE

B. FALSE

C. Valid

D. Invalid

What is the correct answer?

4

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

A. 1234567891011121314….infinitely

B. 01234567891011121314…infinitely

C. 1

D. 0

What is the correct answer?

4

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

A.

start_session()

B.

session_start()

C.

session_begin()

D.

begin_session()

What is the correct answer?

4

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


What is the correct answer?

4

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 )

What is the correct answer?

4

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 )

What is the correct answer?

4

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;
?>

A. I have a value

B. I have a valueI have a value

C. ERROR

D. I have a valueNEW_GOO_NAME_CONSTANTS

What is the correct answer?

4

Which of the following is/are a PHP code editor?
i) Notepad
ii) Notepad++
iii) Adobe Dreamweaver
iv) PDT


A.

Only iv)


B.

All of the mentioned.


C.

i), ii) and iii)


D.

Only iii)


What is the correct answer?

4

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 )

What is the correct answer?

4

What will be the output of the following PHP code? If say date is 22/06/2013.
     <?php      printf( date(t) )     ?> 

A. 30

B. 22

C. JUNE

D. 2013

What is the correct answer?

4

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;
?>

A. 448
384

B. 0700
0800

C. ERROR

D. No output

What is the correct answer?

4

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

A. red red

B. red

C. error

D. nothing

What is the correct answer?

4

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()

What is the correct answer?

4

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

A. red green

B. red

C. green

D. error

What is the correct answer?

4

Which of the following must be installed on your computer so as to run PHP script?
i) Adobe Dreamweaver
ii) PHP
iii) Apache
iv) IIS


A.

All of the mentioned.


B.

Only ii)


C.

ii) and iii)


D.

ii), iii) and iv)


What is the correct answer?

4

Neglecting to set which of the following cookie will result in the cookies domain being set to the host name of the server which generated it.

A.

session.domain

B.

session.path

C.

session.cookie_path

D.

session.cookie_domain

What is the correct answer?

4

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 )

What is the correct answer?

4

A PHP script should start with ___ and end with ___:


A.

< php >


B.

< ? php ?>


C.

<?php ?>


D.

<% %>