PHP QUESTIONS AND ANSWERS

1)<?php $x=array("aaa","ttt","www","ttt","yyy","tttt"); $y=array_count_values($x); echo $y[ttt]; ?> 

a)2

b)3

c)1

d)4

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2) How do you get information from a form that is submitted using the "get" method?

a)$_GET[];

b)Request.Form;

c)Request.QueryString;

d)$_POST[];

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3)What's the best way to copy a file from within a piece of PHP?

a) Print out a message asking your user to "telnet" in to the server and copy the file for you

b) Open the input and output files, and use read() and write() to copy the data block by block until read() returns a zero

c) Use the built in copy() function

d) Use "exec" to run an operating system command such as cp (Unix, Linux) or copy (Windows)

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4) PHP code is embedded directly into XHTML document? 

a) False

b) True

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5) Is it possible to submit a form with out a submit button?

a) Yes

b) No

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6) Full form of PHP

a) PreHypertextProcessor

b) HypertextPreprocessor

c) Hypertext Postprocessor

d) PostHypertextProcessor

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7) What is the expansion of LAMP?

a) Linux And Mysql Php

b) Linux Apache Mysql Php

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8) In php Which method is used to getting browser properties?

a) $_SERVER['HTTP_USER_AGENT'];

b) $_SERVER['PHP_SELF']

c) $_SERVER['SERVER_NAME']

d) $_SERVER['HTTP_VARIENT']

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9) Which of the following function is used to pick one or more random values from PHP Array? 

a) array_rand()

b) array_random()

c) Random_array()

d) Rand_array()

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10) <?php $x=array(1,3,2,3,7,8,9,7,3); $y=array_count_values($x); echo $y[8]; ?> 

a) 43

b) 1

c) 8

d) 6

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11) Assume that your php file 'index.php' in location c:/apache/htdocs/phptutor/index.php. If you used$_SERVER['PHP_SELF'] function in your page, then what is the return value of this function ?

a) phptutor/index.php

b) /phptutor/index.php

c) c:/apache/htdocs/phptutor/index.php

d) index.php

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12) Which operator is used to concatenate two strings in php?

a) dot operator (.)

b) plus operator (+)

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13)Are there regular expressions in PHP?

a) Yes - regular expressions use Perl-like conventions

b) Yes - PHP supports two different types of regular expressions: POSIX-extended and Perl-Compatible Regular Expressions (PCRE).

c) Yes - regular expressions use the POSIX standard

d) No - PHP uses "glob" style matching only

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14) In PHP, which of the following function is used to insert content of one php file into another php file before server executes it 

a) include[]

b) #include()

c) include()

d) #include{}

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15) what will be the ouput of below code ? Assume that today is 2009-5-19:2:45:32 pm 

<?php

$today = date("F j, Y, g:i a");

?>

a) may 19,09,2:45:32 PM

b) May 19, 2009, 2:45 pm

c) May 19,2009,14:45:32 pm

d) May 19,2009,14:45:32 PM

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16) Which of the following function is used for terminate the script execution in PHP? 

a) break()

b) quit()

c) die()

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17) What function used to print statement in PHP? 

a) echo();

b) printf

c) ""

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18) <?php define("x","5"); $x=x+10; echo x; ?>

a) Error

b) 15

c) 10

d) 5

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19) what will be the output of below code ?

<?php $arr = array(5 => 1, 12 => 2); $arr[] = 56; $arr["x"] = 42; unset($arr); echo var_dump($arr);

?> 

a) 42

b) 56

c) Null

d) x=42

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20) PHP variables are

a) Multitype variables

b) Double type variables

c) Single type variable

d) Trible type variables

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21) Which of these statements is true?

a) PHP interfaces to the MySQL database,and you should transfer any data in Oracle or Sybase to MySQL if you want to use PHP on the data.

b) PHP interfaces to a number of relational databases such as MySQL, Oracle and Sybase. A wrapper layer is provided so that code written for one database can easily be transferred to another if you later switch your database engine.

c) PHP interfaces to a number of relational databases such as MySQL, Oracle and Sybase but the interface differs in each case.

d) There's little code in PHP to help you interface to databases, but there's no reason why you can't write such code if you want to.

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22) Is php can support multiple inheritance?

a) NO

b) YES

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23) How would you add 1 to the variable $count?

a) incr count;

b) $count++;

c) $count =+1

d) incr $count;

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24) Which of the following is used to check if a function has already been defined? 

a) bool function_exists(functionname)

b) bool f_exists(functionname)

c) bool func_exist(functioname)

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25) what is the return value of this substr function?

<?php

$rest = substr("abcdef", -1);

$rest = substr("abcdef", 0, -1);

?>

a) f,abcde

b) a,fedcb

c) b,abcdef

d) a,abcde

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26) Assume that your php file 'index.php' in location c:/apache/htdocs/phptutor/index.php. If you usedbasename($_SERVER['PHP_SELF']) function in your page, then what is the return value of this function ?

a) phptutor

b) phptutor/index.php

c) index.php

d) /index.php

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27) $x="display"; ${$x.'_result'} (); ?> Above program will call the function display_result() 

a) False

b) True

c) Parser Error

d) None of the above

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28) All variables in PHP start with which symbol?

a) !

b) $

c) &

d) %

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29) Father of PHP?

a) Larry Wall

b) Rasmus Lerdorf

c) James Gosling

d) Guido Van Rossum

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30) In PHP the error control operator is _______ 

a) .

b) *

c) @

d) &

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31) $str="3dollars"; $a=20; $a+=$str; print($a); ?> Output ? 

a) 23dollars

b) 203dollars

c) 320dollars

d) 23

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32) <?php function zz(& $x) { $x=$x+5; } 

?> $x=10; zz($x); echo $x; 

a) 5

b) 0

c) 15

d) 10

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33) <?php echo $_SERVER['REMOTE_ADDR']; ?>

a) shows the IP address of the local system

b) shows the IP address of the visitor

c) shows the IP address of the webserver

d) None of the above

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34) <?php $x=dir("."); while($y=$x->read()) { echo $y."" } $y->close(); ?> 

What is the following output? 

a) display all folder names

b) display a folder content

c) display content of the all drives

d) Parse error

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35) <?php $qpt = 'QualityPointTechnologies'; echo preg_match("/^Quality/", $qpt); ?> 

a) 1

b) 0

c) Quality

d) Null

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36) <?php $test="3.5seconds"; settype($test,"double"); settype($test,"integer"); settype($test,"string"); print($test); ?> 

What is the following output? 

a) 3.5

b) 3.5seconds

c) 3

d) 3seconds

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37) <?php $x=array(2=>"mouse",7=>"keyboard"); $y=array_keys($x); echo $y[1]; ?> 

a) keyboard

b) mouse

c) 7

d) 2

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38) $data="98.8degrees"; (double)$data; (int)$data; (string)$string; echo $data; ?>

a) 98

b) 98.8

c) 98.8degrees

d) degrees

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39) PHP is

a) Partially cross-platform

b) Truly cross-platform

c) None of above

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40) <?php $x="101.5degrees"; (double)$x; (int)$x; echo (string)$x; ?> 

a) 101.5

b) degrees

c) 101

d) 101.5degrees

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41) Whether One-line comment begin with pound sing(#) in php?

a) True

b) False

c) None of above

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42) In PHP, during error handling include() generates......................

a) a fatal error, and the script will stop

b) a warning, but the script will continue execution

c) None of the above

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43) <?php $qpt = 'Eat to live, but not live to eat'; echo preg_match("/^to/", $qpt); 

?> 

a) 0

b) 1

c) to

d) Null

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44) <?php $x=array("aaa","","ccc","ddd",""); $y=array_unique($x); echo count($x) . "," . count($y); ?> 

a) 3,1

b) 3,3

c) 5,5

d) 5,4

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45) PHP is a _____ . It means you do not have to tell PHP which data type the variable is.PHP automatically converts the variable to the correct data type, depending on its value.

a) client side language

b) local language

c) global language

d) loosely typed language

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46) Which of the following is not a valid variable name?

a) $number-in-class

b) $nic

c) $NumberInClass

d) $number_in_class

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47) Which of the following function is used to change the root directory in PHP? 

a) choot()

b) change_root()

c) cd_root()

d) cd_r()

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48) PHP is

a) client side script language

b) server side script language

c) event-driven language

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49) $father="mother"; $mother="son"; echo $$father; ?> 

a) son

b) mother

c) motherson

d) error

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50) <?php $x=array(4,2,5,1,4,5,3,4); $y=array_count_values($x); echo count($y); ?> 

a) 8

b) 5

c) 7

d) 28

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51) The PHP syntax is most similar to:

a) PERL and C

b) Java script

c) VB Script

d) Visual Basic

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52) what will be the output of below code ?

<?php

$arr = array(5 => 1, 12 => 2); $arr[] = 56; $arr["x"] = 42; echo var_dump($arr);

?>

a) 42

b) array(3) { [12]=> int(2) [13]=> int(56) ["x"]=> int(42) }

c) array(4) { [5]=>int(1) [12]=> int(2) [13]=> int(56) ["x"]=> int(42) }

d) 1,2,56,42

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53) what will the ouptut of below date() function ?

<?php

$date="2009-5-19";

$time="14:31:38";

$datetime=$date.$time;

echo date("Y-m-d:H:i:s",strtotime($datetime));

?>

a) 2009-5-19:14:31:38

b) 2009-5-19:2:31:38

c) 19-5-2009:2:31:38

d) 19/5/2009:14:31:38

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54) <?php $color=array("red","yellow","white"); $x=in_array("black",$color); if($x==0) echo "good bye"; if($x==1) echo "Hello"; ?>

a)Hello

b) Error

c) good bye

d) None of the above

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Easy Learning - PHP

Answers

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