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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 )

Correct Answer :

B.

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


The array_combine() function creates an array by using the elements from one keys array and one values array.

Related Questions

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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

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)


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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

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

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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

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4

To create an object and set the date to JUNE 22, 2013, which one of the following statement should be executed?

A.

$date = Date(22 JUNE 2013)

B.

$date = new Date(JUNE 22 2013)

C.

$date = DateTime(22 JUNE 2013)

D.

$date = new DateTime(22 JUNE 2013)

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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()

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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

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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 */

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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 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

Which directive determines how the session information will be stored?

A.

save_data

B.

session.save

C.

session.save_data

D.

session.save_handler

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


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4

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

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   $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

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


A.

< php >


B.

< ? php ?>


C.

<?php ?>


D.

<% %>


What is the correct answer?

4

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

A. 00000000000000000000….infinitely

B. -1-1-1-1-1-1-1-1-1-1…infinitely

C. no output

D. error

What is the correct answer?

4

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

A. red

B. green

C. red green

D. error

What is the correct answer?

4

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

A.

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

B.

Array ( [peter] => 35 [ben] => 37 [joe] => 43 )

C.

Array ( [PETER] => 35 [BEN] => 37 [JOE] => 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? 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(VAR_NAME,test);
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>

A. test

B. testtest

C. testvalue

D. error, constant value cannot be changed

What is the correct answer?

4

Which of following variables can be assigned a value to it?
i) $3hello
ii) $_hello
iii) $this
iv) $This


A.

All of the mentioned


B.

Only ii)


C.

ii), iii) and iv)


D.

ii) and iv)


What is the correct answer?

4

Which one of the following is the default PHP session name?

A. PHPSESSID

B. PHPSESID

C. PHPSESSIONID

D. PHPIDSESS

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 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

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

A. Integer

B. String

C. Boolean

D. Float

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(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?
 <?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)