PHP Programming new 68 Solved Mcq Question Answer

Question: 1.

What does PHP stand for?

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

Option A.

Both i) and iii)

Option B.

Both ii) and iv)

Option C.

Only ii)

Option D.

Both i) and ii)

Question: 2.

PHP files have a default file extension of..

Option A.

.html

Option B.

.xml

Option C.

.php

Option D.

.ph

Option E.

.asp

Option F.

.jsp

Question: 3.

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

Option A.

< php >

Option B.

< ? php ?>

Option C.

<?php ?>

Option D.

<% %>

Question: 4.

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

Option A.

Only iv)

Option B.

All of the mentioned.

Option C.

i), ii) and iii)

Option D.

Only iii)

Question: 5.

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

Option A.

All of the mentioned.

Option B.

Only ii)

Option C.

ii) and iii)

Option D.

ii), iii) and iv)

Question: 6.

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

Option A.

All of the mentioned

Option B.

Only ii)

Option C.

ii), iii) and iv)

Option D.

ii) and iv)

Question: 7.

What will be the output of the following code?

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

Option A.

Error

Option B.

My name is BobBob

Option C.

My name is BobMy name is Bob

Option D.

My name is Bob Bob

Question: 8.

Which of the following PHP statements will output Hello World on the screen?
i) echo (“Hello World”);
ii) print (“Hello World”);
iii) printf (“Hello World”);
iv) sprintf (“Hello World”);

Option A.

i) and ii)

Option B.

i), ii) and iii)

Option C.

All of the mentioned

Option D.

i), ii) and iv)

Question: 9. What will be the output of the following PHP code ?

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

Option A. 00000000000000000000….infinitely

Option B. -1-1-1-1-1-1-1-1-1-1…infinitely

Option C. no output

Option D. error

Question: 10. What will be the output of the following PHP code ?

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

Option A. red red

Option B. red

Option C. error

Option D. nothing

Question: 11. What will be the output of the following PHP code ?

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

Option A. redgreen

Option B. red green

Option C. 0

Option D. 1

Question: 12. 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;
?> 

Option A. 448
384

Option B. 0700
0800

Option C. ERROR

Option D. No output

Question: 13. 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));
?> 

Option A.

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

Option B.

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

Option C.

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

Option D.

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

Question: 14. Which one of the following function is used to start a session?

Option A.

start_session()

Option B.

session_start()

Option C.

session_begin()

Option D.

begin_session()

Question: 15. 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);
?> 

Option A.

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

Option B.

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

Option C.

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

Option D.

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

Question: 16. What will be the output of the following PHP code ?

 <?php  $i = ;
while ($i = 10){       print hi;
}print hello;
?> 

Option A. hello

Option B. infinite loop

Option C. hihello

Option D. error

Question: 17. 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);
?> 

Option A.

Array ( [d] => yellow )

Option B.

Array ( [c] => blue )

Option C.

Array ( [a] => red )

Option D.

Array ( [e] => yellow )

Question: 18. What will be the output of the following PHP code ?

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

Option A. test

Option B. testtest

Option C. testvalue

Option D. error, constant value cannot be changed

Question: 19. Which one of the following is the default PHP session name?

Option A. PHPSESSID

Option B. PHPSESID

Option C. PHPSESSIONID

Option D. PHPIDSESS

Question: 20. Which one of the following is the very first task executed by a session enabled page?

Option A. Delete the previous session

Option B. Start a new session

Option C. Check whether a valid session exists

Option D. Handle the session

Question: 21. What will be the output of the following PHP code ?

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

Option A. 5

Option B. 555555555…infinitely

Option C. 54321

Option D. error

Question: 22. What will be the output of the following PHP code ?

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

Option A. red

Option B. green

Option C. red green

Option D. error

Question: 23. What will be the output of the following PHP code ?

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

Option A. red

Option B. green

Option C. red green

Option D. redgreen

Question: 24. 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);
?> 

Option A.

green

Option B.

red

Option C.

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

Option D.

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

Question: 25. How many ways can a session data be stored?

Option A. 3

Option B. 4

Option C. 5

Option D. 6

Question: 26. What will be the output of the following PHP code ?

 <?php  define('IF', 42);
echo IF: , IF;
?> 

Option A. IF:42

Option B. No output

Option C. IF:

Option D. ERROR

Question: 27. Which one of the following format parameter can be used to identify timezone?

Option A. T

Option B. N

Option C. E

Option D. I

Question: 28. What will be the output of the following PHP code?

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

Option A.

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

Option B.

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

Option C.

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

Option D.

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

Question: 29. Which one of the following function is useful for producing a timestamp based on a given date and time.

Option A.

time()

Option B.

mktime()

Option C.

mrtime()

Option D.

mtime()

Question: 30. What will be the output of the following PHP code?

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

Option A.

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

Option B.

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

Option C.

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

Option D.

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

Question: 31. What will be the output of the following PHP code ?

 <?php  /*echo Hello world;
*/ ?> 

Option A. Hello world

Option B. Nothing

Option C. Error

Option D.

/* Hello world */

Question: 32. What will be the output of the following PHP code? If say date is 22/06/2013.

     <?php      printf( date(t) )     ?> 

Option A. 30

Option B. 22

Option C. JUNE

Option D. 2013

Question: 33. 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);
?> 

Option A.

Array ( Peter Ben Joe )

Option B.

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

Option C.

Array ( 35 37 43 )

Option D.

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

Question: 34. Say you want to calculate the date 45 days from the present date which one of the following statement will you use?

Option A.

totime(+45)

Option B.

totime(+45 days)

Option C.

strtotime(+45 days)

Option D.

strtotime(-45 days)

Question: 35. What will be the output of the following PHP code?

     <?php      echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?> 

Option A. TRUE

Option B. FALSE

Option C. Valid

Option D. Invalid

Question: 36. What will be the output of the following PHP code ?

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

Option A. PHP is a scripting language

Option B. __LINE__

Option C. 2

Option D. ERROR

Question: 37. 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();
?> 

Option A. 0.01.0

Option B. 01

Option C. No output

Option D. ERROR

Question: 38. What will be the output of the following PHP code ?

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

Option A. redgreen

Option B. red green

Option C. 0

Option D. error

Question: 39. 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));
?> 

Option A.

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

Option B.

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

Option C.

Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )

Option D.

Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )

Question: 40. What will be the output of the following PHP code ?

 <?php  $i = 0;
while ($i = 10){       print hi;
}print hello;
?> 

Option A. hello

Option B. infinite loop

Option C. hihello

Option D. error

Question: 41. What will be the output of the following PHP code ?

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

Option A. $GREETING

Option B. no output

Option C. PHP is a scripting language

Option D. GREETING

Question: 42. What will be the output of the following PHP code ?

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

Option A. red green

Option B. red

Option C. green

Option D. error

Question: 43. What will be the output of the following PHP code ?

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

Option A. 210

Option B. 10

Option C. no output

Option D. infinite loop

Question: 44. Which function displays the web pages most recent modification date?

Option A.

lastmod()

Option B.

getlastmod()

Option C.

last_mod()

Option D.

get_last_mod()

Question: 45. What will be the output of the following PHP code ?

 <?php  $color1 = red;
$color2 = 1;
echo $color1 + $color2;
?> 

Option A. red1

Option B. red 1

Option C. 0

Option D. 1

Question: 46. What will be the output of the following PHP code ?

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

Option A. 54321111111….infinitely

Option B. 555555555…infinitely

Option C. 54321

Option D. 5

Question: 47. What is the default number of seconds that cached session pages are made available before the new pages are created?

Option A. 360

Option B. 180

Option C. 3600

Option D. 1800

Question: 48. 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));
?> 

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

Option B. GREETING_TESt

Option C. PHP is a scripting language

Option D. PHP is a scripting language
GREETING_TEST

Question: 49. If the directive session.cookie_lifetime is set to 3600, the cookie will live until..

Option A. 3600 sec

Option B. 3600 min

Option C. 3600 hrs

Option D. the browser is restarted

Question: 50. 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;
?> 

Option A. I have a value

Option B. I have a valueI have a value

Option C. ERROR

Option D. I have a valueNEW_GOO_NAME_CONSTANTS

Question: 51. What will be the output of the following PHP code ?

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

Option A. 1234567891011121314….infinitely

Option B. 01234567891011121314…infinitely

Option C. no output

Option D. error

Question: 52. 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] . .;
?> 

Option A. I like Volvo BMW and Toyota.

Option B. I like Volvo, BMW and Toyota)

Option C. I like Volvo, BMW and Toyota.

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

Question: 53. What will be the output of the following PHP code ?

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

Option A. PHP is a scripting language

Option B. GREETING
GREEtING

Option C. GREETING

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

Question: 54. To create an object and set the date to JUNE 22, 2013, which one of the following statement should be executed?

Option A.

$date = Date(22 JUNE 2013)

Option B.

$date = new Date(JUNE 22 2013)

Option C.

$date = DateTime(22 JUNE 2013)

Option D.

$date = new DateTime(22 JUNE 2013)

Question: 55. If the format is F then which one of the following will be returned?

Option A. Complete text representation of month

Option B. Day of month, with leading zero

Option C. Daylight saving time

Option D. Day of month, without zeros

Question: 56. 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.

Option A.

session.domain

Option B.

session.path

Option C.

session.cookie_path

Option D.

session.cookie_domain

Question: 57. What will be the output of the following PHP code ?

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

Option A. 1234567891011121314….infinitely

Option B. 01234567891011121314…infinitely

Option C. 1

Option D. 0

Question: 58. What will be the output of the following PHP code ?

 <?php  class myObject { }define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;
?> 

Option A. test

Option B. error

Option C. myObject::CONSTANT

Option D. no output

Question: 59. What is the default time(in seconds) for which session data is considered valid?

Option A. 1800

Option B. 3600

Option C. 1440

Option D. 1540

Question: 60. If session.use_cookie is set to 0, this results in use of..

Option A. Session

Option B. Cookie

Option C. URL rewriting

Option D. Nothing happens

Question: 61. Which directive determines how the session information will be stored?

Option A.

save_data

Option B.

session.save

Option C.

session.save_data

Option D.

session.save_handler

Question: 62. What will be the output of the following PHP code ?

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

Option A. 4hello4hello4hello4hello4hello…..infinite

Option B. 5hello5hello5hello5hello5hello…..infinite

Option C. no output

Option D. error

Question: 63. What will be the output of the following PHP code ?

 <?php  $color1 = 1;
$color2 = 1;
echo $color1 + $color2;
?> 

Option A. 11

Option B. 2

Option C. 0

Option D. 1

Question: 64. What will be the output of the following code? If say date is 22/06/2013.

     <?php      echo Today is .date(F d, Y)     ?> 

Option A. Today is 22 June, 2013

Option B. Today is 22-06-2013

Option C. Today is 06-22-2013

Option D. Today is June 22, 2013

Question: 65. 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));
?> 

Option A.

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

Option B.

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

Option C.

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

Option D.

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

Question: 66. What will be the output of the following PHP code ?

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

Option A. 210

Option B. 10

Option C. no output

Option D. infinite loop

Question: 67. The date() function returns ___ representation of the current date and/or time.

Option A. Integer

Option B. String

Option C. Boolean

Option D. Float

Question: 68. What will be the output of the following PHP code ?

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

Option A. 1grey

Option B. grey

Option C. 0

Option D. red1grey

Answer Sheet

1	D	PHP previously stood for Personal Home Page now stands for Hypertext Preprocessor.
2	C
3	C	Every section of PHP code starts and ends by turning on and off PHP tags to let the server know that it needs to execute the PHP in between them.
4	B	Any of the above editors can be used to type php code and run it.
5	D	To run PHP code you need to have PHP and a web server, both IIS and Apache are web servers.You can choose either one according to your platform.
6	D	A variable can’t start with a number. Also $this is a special variable that can’t be assigned, but $This can be assigned
7	C	The $bar = &$foo; line will reference $foo via $bar.
8	B	echo(), print() and printf() all three can be used to output a statement onto the screen. The sprintf() statement is functionally identical to printf() except that the output is assigned to a string rather than rendered to the browser.
9	A	($i > ++$i) evaluates to 0 but -1 makes it enters the loop and prints i which is 0.
10	C	Use of undefined constant red.
11	C	+ does not return 1 if the variables are equal.
12	A	Anything starting from 0 is evaluated as an octal.
13	C	The array_merge() function merges one or more arrays into one array.
14	B
15	D	The array_fill() function fills an array with values.
16	B	While condition always gives 1.
17	A	The array_diff() function compares the values of two (or more) arrays, and returns the differences.
18	C	${VAR_NAME} creates a new variable which is not same as VAR_NAME.
19	A	You can change this name by using the session.name directive.
20	C
21	B	As it is && operator it is being incremented and decremented continuously.
22	B	The variable contains the last value which has been assigned.
23	D	The . operator is used to join to strings.
24	D	The array_shift() function removes the first element from an array, and returns the value of the removed element.
25	B	Within flat files(files), within volatile memory(mm), using the SQLite database(sqlite), or through user defined functions(user).
26	D	Keyword like IF cannot be used as constant names.
27	C	When the format is E the timezone is identified and returned…example America/New_York.
28	A	The array_count_values() function counts all the values of an array.
29	B
30	A	The array_pop() function deletes the last element of an array.
31	B	/* */ is used for commenting multiple lines.
32	A	The t parameter is used to determine the number of days in the current month.
33	B	The array_combine() function creates an array by using the elements from one keys array and one values array.
34	C	The strtotime() function and GNU date syntax is used to calculating the date x days from the present date.
35	D	April has 30 days and the above date is 31 therefore Invalid is returned.
36	C	__LINE__ is a magical constant that gives the current line number and cannot be used a variable/constant name.
37	D	In a class constants should be defined const MIN_VALUE = 0.0; const MAX_VALUE = 1.0; instead.
38	C	+ operator does not join both the strings.
39	C	The array_change_key_case() function changes all keys in an array to lowercase or uppercase.
40	B	While condition always gives 1.
41	B	Constants do not need a $ before them, they are referenced by their variable names itself.
42	D	It has to be $color1 = red; and $color2 = green; therefore the error.
43	D	The loop never ends as i is always incremented and then decremented.
44	B	The getlastmod() function returns the value of the pages Last Modified header or FALSE in the case of an error.
45	D	+ just returns the numeric value even though it is inside double quotes.
46	A	As it is || operator the second expression is not evaluated till i becomes 1 then it goes into a loop.
47	B	The directive which determines this is session.cache_expire.
48	A	echo constant(x) output x, and x here is the concatenation of GREETING_ and $changing variable with. operator.
49	A	The lifetime is specified in seconds, so if the cookie should live 1 hour, this directive should be set to 3600.
50	B	Constants can be set as values for other constants.
51	C	The first condition itself fails thus the loop exits.
52	B	The array() function is used to create an array. Each elements are assigned ab index as the rule of an array. So, calling $cars[0] will print element at index 0 and so on.
53	D	Since the third parameter is true in define(GREETING, PHP is a scripting language, true) is true GREETING becomes case insensitive.
54	D	The dateTime() method is class constructor. You can set the date either at the time of instantiation or later by using a variety of mutators.
55	A	Day of month, with leading zero is represented by D; Daylight saving time by I; Day of month, without zeros by j.
56	D	The directive session.cookie_domain determines the domain for which the cookie is valid.
57	A	As it is || operator the second expression is not evaluated and i is always incremented, in the first case to 1.
58	B	Class constants cannot be defined outside class.
59	C	The session.gc_maxlifetime directive determines this duration. It can be set to any required value.
60	C
61	D	Its prototype follows: session.save_handler = files|mm|sqlite|user.
62	A	i is decremented in the first while execution and then continuously incremented back.
63	B	+ can be used to add to integer values which are enclosed by double-quotes.
64	D	F is the parameter for complete text representation of month, d for day of month, and Y for 4 digit representation of year.
65	D	The array_chunk() function splits an array into chunks of new arrays.
66	A	The loop ends when i becomes 0.
67	B	The prototype of this function is: string date(string format [, int timestamp]).
68	A	+ gives the value 1 and . is used to give join 1 and grey.