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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. 1

D. 0

Correct Answer :

A. 1234567891011121314….infinitely


As it is || operator the second expression is not evaluated and i is always incremented, in the first case to 1.

Related Questions

What is the correct answer?

4

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


A.

< php >


B.

< ? php ?>


C.

<?php ?>


D.

<% %>


What is the correct answer?

4

Say you want to calculate the date 45 days from the present date which one of the following statement will you use?

A.

totime(+45)

B.

totime(+45 days)

C.

strtotime(+45 days)

D.

strtotime(-45 days)

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

A. 5

B. 555555555…infinitely

C. 54321

D. error

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  $a = array(red, green, blue);
array_pop($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

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  $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

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

A. PHP is a scripting language

B. GREETING
GREEtING

C. GREETING

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

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

A. 54321111111….infinitely

B. 555555555…infinitely

C. 54321

D. 5

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('GREETING_TEST', 'PHP is a scripting language', true);
echo GREETING_TESt;
$changing_variable = 'test';
echo constant('GREETING_' . strtoupper($changing_variable));
?>

A. PHP is a scripting language
PHP is a scripting language

B. GREETING_TESt

C. PHP is a scripting language

D. PHP is a scripting language
GREETING_TEST

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  $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

Which function displays the web pages most recent modification date?

A.

lastmod()

B.

getlastmod()

C.

last_mod()

D.

get_last_mod()

What is the correct answer?

4

What will be the output of the following PHP code?
 <?php  $cars = array(Volvo, BMW, Toyota);
echo I like . $cars[0] . , . $cars[1] . and . $cars[2] . .;
?>

A. I like Volvo BMW and Toyota.

B. I like Volvo, BMW and Toyota)

C. I like Volvo, BMW and Toyota.

D. I like. Volvo.,. BMW. and. Toyota)

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

What does PHP stand for?


i) Personal Home Page
ii) Hypertext Preprocessor
iii) Pretext Hypertext Processor
iv) Preprocessor Home Page


A.

Both i) and iii)


B.

Both ii) and iv)


C.

Only ii)


D.

Both i) and ii)


What is the correct answer?

4

What will be the output of the following PHP code ?
 <?php  class myObject { }define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;
?>

A. test

B. error

C. myObject::CONSTANT

D. no output

What is the correct answer?

4

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

A. hello

B. infinite loop

C. hihello

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

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

A. $GREETING

B. no output

C. PHP is a scripting language

D. GREETING

What is the correct answer?

4

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

A. T

B. N

C. E

D. I

What is the correct answer?

4

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

A. red1

B. red 1

C. 0

D. 1

What is the correct answer?

4

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

A. 4hello4hello4hello4hello4hello…..infinite

B. 5hello5hello5hello5hello5hello…..infinite

C. no output

D. error

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

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

A. 1grey

B. grey

C. 0

D. red1grey