PHP 5

#Question (many answers): What is true regarding $a + $b
where both of them are arrays?
a. Duplicated keys are NOT overwritten
b. $b is appended to $a
c. The + operator is overloaded
d. This produces a syntax error

Question: You have two strings, which you want to
concatenate.
$str1 = ‘Have a ‘;
$str2 = ‘Nice Day’;
The fastest way would be:
a. $str1.Concat($str2);
b. $str1.$str2;
c. “$str1$str2”;
d. None of the above
 

Question: Which of the following pair have non-associative
equal precedence?
a. +,-
b. ==,!=
C. «,»
d. &=,|=
 

Question:Which of the following variables is not related to
file uploads?
a. max_file_size
b. max_execution_time
c. post_max_size
d. max_input_time
 

Question: You have a 2D array in PHP:
$array = array(array(141,151,161), 2,3, array(101, 202, 303));
You want to display all the values in the array The correct way is:
a.
function DisplayArray($array) {
foreach ($array as $value) {
if (array_valid($value)) {
DisplayArray($value);
} else {
echo $value. “<br>”;
}
}
}
DisplayArray($array);
b.
function DisplayArray($array) {
for ($array as $value) {
if (valid_array($value)) {
DisplayArray($value);
} else {
echo $value. “<br>”;
}
}
}
DisplayArray($array);
c.
function DisplayArray($array) {
for ($array as $value) {
if (is_array($value)) {
DisplayArray($value);
} else {
echo $value. “&ltbr>”;
}
}
}
DisplayArray($array);
d.
function DisplayArray($array) {
foreach ($array as $value) {
if (is_array($value)) {
DisplayArray($value);
} else {
echo $value “&ltbr>”;
}
}
}
DisplayArray($array);
Right answer: d.
 

Question: Multiple select/load is possible with:
a. Checkbox
b. Select
c. File
d. All of the above
 

Question: The following php variables are declared:
$company = ‘ABS Ltd’;
$$company =‘, Sydney’;
Which of the following is not a correct way of printing ‘ABS Ltd. Sydney’?
a. echo “$company $$company”;
b. echo “$company ${$company}”;
c. echo “$company ${‘ABS Ltd‘}“;
d. echo “$company {$$company}”;
 

Question (many answers)
We have two variable definitions:
1. 023
2. x23
Choose the correct options:
a. 1 is octal
b. 2 is hexadecimal
c. 2 is octal
d. 1 is hexadecimal
 

Question: Which of the following is a predefined constant?
a. TRUE
b. FALSE
c. NULL
d. _FILE_
e. CONSTANT
 

Question (many answers): Which of the following variable
names are invalid?
a. $var_1
b. $var1
c. $var-1
d. $var/1
e. $vl
 

Question (many answers): Which of the following are not
considered as boolean False?
a. FALSE
b. 0
c. “0”
d. “FALSE”
e. 1
f. NULL
 

Question: Which of the following regular expressions can be
used to check the validity of an e-mail addresss?
a. ^[^@ ]+@[^@ ]+\.[“@ ]+$
b. ^[^@ ]+@[^@ ]+[^@ ]+$
c. $[^@ ]+@[^@ ]+\[^@ ]+^
d. $[^@ ]+@[^@ ]+[^@ ]+^
 

Question: Which of the following type cast is not correct?
$fig=23;
$varbl= (real) $fig;
$varb2 = (double) $flg;
$varb3 = (decimal) $flg;
$varb4 = (bool) $fig;
a. real
b. double
c. decimal
d. boolean
 

Question: Which of the following statements is not true with
regard to abstract classes in php5?
a. Abstract classes are introduced in PHP5
b. A class with a single abstract method must be declared abstract
c. Abstract class can contain non abstract methods
d. Abstract method must have method definition and can have optional empty braces
following it
 

Question: What do you infer from the following code?
$str = ‘Dear Customer,\nThanks for your query. We will reply very soon\n
Regards,\n Customer Service Agent’;
print $str;
a. Only first \n character will be recognised and new line will be inserted
b. Last \n will not be recognised and only first two parts will come in new lines
c. All the \n will work and text will be printed on respective new lines.
d. All will be printed on one line irrespective of the \n.
 

Question: Which of the following characters are taken care
of by htmlspecialchars?
a. <
b. >
c. single quote
d. double quote
e. &
f. All of the above
 

Question: What will be the output of the following code?
$a = 10;
if($a > 5 OR < 15)
echo “true”;
else
echo “false”
a. true
b. false
c. No output
d. Parse Error
 

Question: If expire parameter of setCookie function is not
specified then:
a. Cookie will never expire
b. Cookie will expire with closure of the browser
c. Cookie will expire with within 30 minutes
d. Cookie will expire in 24 hours
 

Question: You need to check the size of a file in PHP
function.
$size=X(filename);
Which function will suitably replace ‘X’ ?
a. filesize
b. size
c. sizeofFile
d. getSize
 

Question: Which of the following text manipulation
functions is supported by PHP?
a. strtoupper()
b. ucfirst()
c. strtolower()
d. str_split()
e. All of the above
 

Question: Which of the following is a correct declaration?
a. static $varb = array(1 ,‘var, 3);
b. static $varb = 1+(2*9O);
c. static $varb = sqrt(81);
d. static $varb = new Object;
 

Question: You wrote following script to check for the right
category:
1<?php
2 $cate=5
3 …
4 …
5
6 if ($cate==5)
7 {
8 ?>
9 Correct category!
10 <?php
11 } else {
12 ?>
13 Incorrect category!
14 <?php
15 }
16 ?>
What will be the output of the program if value of’cate’ remains 5?
a. Correct category!
b. Incorrect category!
c. Error due to use of invalid operator in line 6:”if ($cate=5)»
d. Error due to incorrect syntax at line 8, 10, 12 and 14
 

Question: If visibility is not defined for a method/member
then it is treated as public static.
a. True
b. False
 

Question (many answers): Which of the following statements
is incorrect with regard to interfaces?
a. A class can implement multiple interfaces
b. An abstract class cannot implement multiple interlaces
c. An interlace can extend multiple interfaces
d. Methods with same name, arguments, and sequence can exist in the different interlaces
implemented by a class
 

Question: Which of the following is a Ternary Operator?
a. &
b. =
c. : ?
d. ? :
e. +=
f. &&
 

Question: Which of the following are the valid PHP data
types?
a. resource
b. null
c. boolean
d. string
e. Both a and c
f. Both c and d
g. All of the above
 

Question: You are using sessions and session_register() to
register objects. These objects are serialized automatically at
the end of each PHP page and are de-serialized
automatically on each of the following pages Is this true or
false?
a. True
b. False
 

Question: What will be the output of the following code?
$Rent = 250;
function Expenses($Other) {
$Rent = 250 + $Other;
return $Rent;
}
Expenses(50),
echo $Rent;
a. 300
b. 250
c. 200
d. Program will not compile
 

Question: What will be the result of the following
expression:
6+4 * 9-3
a. 60
b. 87
c. 39
d. 30
 

Question: Does php 5 support exceptions?
a. Yes
b. No
 

Question (many answers): Which of the following printing
construct/function accepts multiple parameters?
a. echo
b. print
c. printf
d. Allof the above
 

Question: What will be the output of the following code?
$var = 10;
function fn() {
$var=20;
return $var;
}
Fn();
echo $var;
a. 10
b. 20
c. Undefined Variable
d. Syntax Error
 

Question: Which of the following is not true regarding
XForms?
a. PHP provides support for XForm
b. It can be used on PDF documents
c. The data is sent in XML format
d. The action and method parameters are defined in the body
 

Question: How would you start a session?
a. session(start);
b. session();
c. session_start();
d. begin_sesion();
 

Question: How would you store order number (34) in an
OrderCookie’?
a. setcookie(«OrderCookie”, 34);
b. makeCookie(”OrderCookie”, 34);
c. Cookie(«OrderCookie”, 34);
d. OrderCookie(34);
 

Question: What will be the output of the following code?
function fn(&$var) {
$var = $var - ($var/l0*5);
return $var;
)
echo fn(100);
a.100
b. 50
c. 98
d. Error message
e. None of the above
 

Question: What will be the result of following operation?
print 4 << 5;
a. 3
b. 128
c. 120
d. 6
 

Question: Which of the following is not supported in PHP5?
a. Type Hinting
b. Reflection
c. Magic Methods
d. Muftiple Inheritance
e. Object Cloning
 

Question: Which of the following is not a valid PHP parser
tag?
a. script
b. ?p
c. %
d. ?php
 

Question: What will be the output of following code?
$a=10;
echo “Value of a =$a”;
a. Value of a=10
b. Value of a=$a
c. Undefined
d. Syntax Error
 

Question: You need to keep an eye on the existing number of
objects of a given class without introducing a non-class
member variable.Which of the following makes this happen?
a. Add a member variable that gets incremented in the default constructor and decremented in the
destructor
b. Add a local variable that gets incremented in each constructor and decremented in the
destructor
c. Add a static member variable that gets incremented in each constructor and
decremented in the destructor
d. This cannot be accomplished since the creation of objects is being done dynamically via
“new”
 

Question: Which of the following multithreaded servers
allow PHP as a plug-in?
a. Netscape FastTrack
b. Microsoft’s Internet Information Server
c. O’Reilly’s WebSite Pro
d. All of the above
 

Question: Which of the following is used to maintain the
value of a variable over different pages?
a. static
b. global
c. session_register()
d. Noneoftheabove
 

Question: Which of the following variable declarations
within a class is invalid in PHP5?
a. private $type = ‘moderate’;
b. internal $term = 3;
c. public $amnt = ‘500’;
d. protected $name = ‘Quantas Private Limited’;
 

Question: Consider the following two statements:
1 while (expr) statement
2 while (expr): statement endwhile;
Which of the following are true in context of the given statements?
a. 1 is correct and 2 is wrong
b. 1 is wrong and 2 is correct
c. Both 1 & 2 are wrong
d. Both 1 & 2 are correct
 

Question: You have defined three variables $to, $subject,
and $body to send an email. Which of the following methods
would you use for sending an email?
a. mail($to,$subject,$body)
b. sendmail($to,$subject,$body)
c. mail(to,subject,body)
d. sendmail(to,subject,body)
 

Question: What is the output of the following code?
function vec_add (&Sa, Sb) {
$a[X] += $b[’x’];
$a[y] += $b[’y’];
$a[Z] += $b['Z'];
}
$a = array (x => 3, y => 2, z => 5);
$b = array (x => 9, y => 3, z => -7);
vec_add (&$a, $b);
print_r ($a);
a. Array
(
[X] => 9
[y] => 3
[Z] => -7
b. Array
[x] => 3
[y] => 2
[z] => 5
c. Array
[xJ =>12
[yJ => 5
[z] => -2
d. Error
e. None of the above
 

Question: In your PHP application you need to open a file.
You want the application to issue a warning and continue
execution, in case the file is not found The ideal function to
be used is:
a. include()
b. require()
c. nowarn()
d. getFile(false)
 

Question (many answers); Which of the the following are
PHP file upload related functions?
a. upload_file()
b. is_uploaded_file()
c. move_uploaded_file()
d. Noneoftheabove
 

Question: Which of the following attribute is needed for file
upload via form?
a. enctype=”multipart/formdata”
b. enctype=”singlepart/data’
c. enctype=»file”
d. enctype=»form-data/file”
 

Question: Variable/functions in PHP don’t work directly
with:
a. echo()
b. isset()
c. print()
d. All of the above
 

Question: Which of the following is a PHP resource?
a. Domxml document
b. Odbc link
c. File
d. Allot the above
 

Question: The inbuilt function to get the number of
parameters passed is:
a. arg_num()
b. func_args_count()
c. func_num_args()
d. None of the above
 

Question: For the following code:
function Expenses() {
function Salary() {
function Loan() {
function Balance() {
}
}
}
}
Which of the following sequence will run successfully?
a. Expenses();Salary();Loan; Balance();
b. Salary();Expenses();Loan(); Balance();
c. Expenses();Salary();Balance();Loan();
d. Balance();Loan();Salary(); Expenses();
 

Question: What will be the output of the following code?
echo 30 * 5.7
a. 150.7
b. 1507
c. 171
d. you can’t concatenate integers
e. error will occur
 

Question: Which of the following is correct with regard to
echo and print?
a. echo is a construct and print is a function
b. echo is a function and print is a construct
c. Both are functions
d. Both are constructs
 

Question: Which of the following is not a file related
function in PHP?
a. fclose
b. fopen
c. fwrite
d. fgets
e. fappend
 

Question: Which of the following variables are supported by
‘str_replace’ function?
a. Integer
b. String
c. Boolean
d. Array
 

Question: Which of the following are useful for method
overloading?
a. _call,_get,_set
b. _get,_set,_load
c. _get,_set,_isset
d. _overload
 

Question: What will be the output of the following code?
var_dump (3*4);
a. int(3*4)
b. int(12)
c. 3*4
d. 12
e. None of the above
 

Question: You need to count the number of parameters
given in the URL by a POST operation. The correct way is:
a. count($POST_VARS);
b. count($POST_VARS_PARAM);
c. count($_POST);
d. count($HTTP_POST_PARAM);
 

Question: Consider the following class:
1 class Insurance
2 {
3 function clsName()
4 {
5 echo get_class($this);
6 }
7 }
8 $cl = new Insurance();
9 Scl->clsName();
10 lnsurance::clsName();
Which of the following Lines should be commented to print the class name without errors?
a. Line 8 and 9
b. Line 10
c. Line 9 and 10
d. All the three lines 8,9, and 10 should be left as it is.
 

Question: Which of the following statement is not correct for
PHP?
a. it is a server side scripting language
b. A php file may contain text, html tags or scripts
c. it can run on windows and Linux systems only
d. it is compatible with most of the common servers used today
 

Question: Which of the following functions output text?
a. echo()
b. print()
c. println()
d. display()
 

Question: Which of the following crypto ¡n PHP returns
longest hash value?
a. md5()
b. shalo
c. crc32()
d. All return same length hash
 

Question: The value of a local variable of a function has to
be retained over multiple calls to that function. How should
that variable be declared?
a. local
b. global
c. static
d. None of the above
 

Question: Does PHP provide the goto keyword in latest
version?
a. Yes
b. No