Zend Preparation | Online PHP Quiz

PHP Basics singleQuestion_time

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1/260

Which of the following is NOT a magic predefined constant?

__METHOD__

__CLASS__

__LINE__

__FILE__

__DATE__

2/260

The function gc_collect_cycles() is used to do which of the following?

Flush the opcode cache

There is no such function

Initiate garbage collection to free up memory

Pause the script for a certain number of processor cycles

3/260

What will be the output of the following PHP code ?

<?php
$y = 2;
$w = 4;
$y *= $w /= $y;
echo $y, $w;
?>

80.5

4/260

Considering the following code, what will the output be?

<?php
$a = "0.0";
$b = (int)$a;
if ( (boolean)$a === (bool)$b) {
echo "True";
} else {
echo "False";
}

Syntax error; this won’t run

True

False

5/260

What will be the output of the following PHP code ?

<?php
for(++$i; ++$i; ++$i)
{
    print $i;
    if ($i == 4) 
        break;
}
?>

134

1234

6/260

Which of the following PHP variable names is not a valid variable name?

$__var

$2var

$var

$_2var

7/260

What is the output from this script?

<?php
$a = true;
$b = false;
$ampBool = $a && $b;
$andBool = $a and $b;
var_dump($ampBool == $andBool);
?>

bool(true)

bool(false)

8/260

What is the value of $x in the following code snippet?

<?php
$x = 123 == 0123;
?>

FALSE

123

NULL

TRUE

9/260

What is the output of the following code?

<?php
$x = 1;
function print_conditional() {
   static $x;
   if($x++ == 1)
      echo "many";
   echo "good";
   echo "things";
   return $x;
}
print_conditional();
$x++;
print_conditional();
?>

manygoodthingsmanygoodthings

goodthingsgoodthings

manygoodthings

goodthingsmanygoodthings

there is no output

10/260

10.

What does PHP stand for?
i) Personal Home Page
ii) Hypertext Preprocessor
iii) Pretext Hypertext Processor
iv) Preprocessor Home Page

Both ii) and iv)

Both i) and iii)

Both i) and ii)

Only ii)

11/260

11.

What will be the output if we declare "ob_start()" function in PHP?

PHP will start displaying the value of current object.

PHP will start displaying the value of last object.

PHP does not output anything.

none of these.

12/260

12.

What is the output of this PHP code?

<?php
echo (isset($a)) ? "A is set" : "A is not set";
echo " and ";
echo (empty($b)) ? "B is not set" : "B is set";

A is not set and B is not set

Syntax error

A is set and B is set

A is not set and B is set

13/260

13.

What is the output of the following line of code:

<?php
$a = 4 << 2 + 1;
echo $a;
?>

14/260

14.

What set of value it will give?

$data = "foo:*:1023:1000::/home/foo:/bin/sh"; 
list($user, $pass, $uid, $gid, $gecos, $home, $shell) = explode(":", $data); 
echo $user; echo $pass;

Foo

*foo

foo:*1023

foo*

15/260

15.

What will be the output of the following PHP code ?

<?php
$a = 1;
if ($a--)
    print "True";
if ($a++)
    print "False"; 
?>

true

error

no output

false

16/260

16.

Which of the conditional statements is/are supported by PHP?
i) if statements
ii) if-else statements
iii) if-elseif statements
iv) switch statements

i), ii) and iv)

i), ii), iii) and iv)

ii), iii) and iv)

Only i)

17/260

17.

Consider the following code:

<?php
function add()
{
       $x=10;
       $y=5;
       $x+=$y;
}
?>

What will be the value of x and y?

x=15, y=5

x=15, y=10

x=10, y=5

x=5, y=15

18/260

18.

What is the output of the following script?

<?php
$arr1 = [1,2,3];
$arr2 = array("1" => 2, 0 => "1", 2 => 3 );
$equal = $arr1 == $arr2 ? 'Equal' : 'Not Equal';
$identical = $arr1 === $arr2 ? 'Identical' : 'Not Identical';
echo "The arrays are [$equal] and [$identical]";

The arrays are [Equal] and [Identical]

The arrays are [Equal] and [Not Identical]

Syntax error; this won't run

The arrays are [Not Equal] and [Not Identical]

None of the above

The arrays are [Not Equal] and [Identical]

19/260

19.

Consider the following code:

<?php
    $x=0;
    $i;
    for($i=0;$i<5;$i++)
    {
        $x+=$i;
    }
    print($x);
?>

What will be the value of x?

20/260

20.

What will be the output of the following PHP code ?

<?php
$a = "1";
$b = "0";
if ((int)$a && $b) 
    print"hi";
else 
    print "hello";
?>

error

no output

hello

21/260

21.

Consider the following script:

<html>
<head>
<title>
       This is a test script.
</title>
</head>
<body>
<?php
    echo 'This is some sample text';
?>
</body>
</html>

Which of the following tags is used in the php script?

Short tag

Script tag

Standard tag

ASP tag

22/260

22.

What will be the output of the following PHP code?

<?php
    $total = "25 students";
    $more = 10;
    $total = $total + $more;
    echo "$total";
    ?>

35 students

25 students

Error

23/260

23.

Which of the following logical operators is an equivalence logical operator?

===

!==

24/260

24.

What is the output of this code?

<?php
define('PI', 3.14159625);
define('_PI', "3.1459625");
$radius = 10;
if (PI == _PI) {
 $area = (int)PI * $radius ** 2;
 echo $area;
} else {
 echo "dhaka";
}

dhaka

1600

300

986.962699801

25/260

25.

What will be the output of the following PHP code ?

<?php
$b = 3;
switch($b)
{
case 2:
    print "hello";
    break;
case 1:
    print "hi";
    break;
}
?>

hello

no output

error

26/260

26.

What will be the output of the following PHP code ?

<?php
 $a = 5; $b = -7; $c =0; 
 $d = ++$a && ++$b || ++$c;
 print $d; print $a;
?>

27/260

27.

What will be the output of the following PHP code ?

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

01234567891011121314....infinitely

1234567891011121314....infinitely

error

no output

28/260

28.

What will be the output of the following PHP code ?

<?php
for ($x = 0; $x <= 10; print ++$x)
{
    print ++$x;
}
?>

1234567891011

12345678910

infinite loop

123456789101112

29/260

29.

What is the result of the following bitwise operation in PHP?

1 ^ 2

30/260

30.

What will be the output of the following PHP code ?

<?php
    echo "This","was"|"a","bad"."idea";
?>

Thiswas a badidea

Thiswasabadidea

Thiswas abadidea

Thiswasbadidea

31/260

31.

What will be the output of the following PHP code ?

<?php
$x;
if ($x == 0)
    print "hi" ;
else
    print "how are u";
    print "hello"
?>

no output

hihello

how are uhello

32/260

32.

What is the output of the following code?

<?php
$a = 42 & 05 + 17;
echo $a;
?>

33/260

33.

What will be the output of the following PHP code ?

<?php
$user = array("Ashley", "Bale", "Shrek", "Blank");
    for ($x=0; $x < count($user) - 1; $x++) 
    {
        if ($user[$x++] == "Shrek") 
            continue;
        printf ($user[$x]); 
    }
?>

BaleBlank

Bale

AshleyShrek

AshleyBaleBlank

34/260

34.

What will be the output of the following PHP code ?

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

no output

error

test

myObject::CONSTANT

35/260

35.

What will be the output of the following PHP code ?

<?php
if (print "hi" - 1)
    print "hello"
?>

Parse error

hihello

no output

36/260

36.

Which of the following equivalence operations evaluates to true if the two operands are not of the same data type or do not have the same value?

!==

===

37/260

37.

42 with two decimal places?

printf("%1.2f\n", 42);

printf("%.2d\n", 42);

38/260

38.

What will be the output of the following PHP code ?

<?php
    $one = "one";
    $two = "two";
    print($one==$two);
?>

false

nothing

true

error

39/260

39.

What will be the output of the following PHP code ?

<?php
$x=1;
echo $x-- != ++$x;
?>

error

no output

40/260

40.

Which of the following will you use to iterate a PHP associative array?

while

foreach

for

for in

41/260

41.

Under what circumstance is it impossible to assign a default value to a parameter while declaring a function?

When the parameter is Boolean

When the function is being declared as a member of a class

When the function contains only one parameter

When the parameter is being declared as passed by reference

42/260

42.

How do we access the value of 'd' later?

$a = array(
    'a',
    3 => 'b',
    1 => 'c',
    'd'
);

$a[3]

$a[2]

$a[1]

$a[0]

$a[4]

43/260

43.

Which of the following is related to APC (Alternative PHP Cache)?

Variable

Byte code caching

Constant

Namespace

44/260

44.

What will be the output of the following PHP code?

<?php
    $color = "maroon";
    $var = $color[2];
    echo "$var";
    ?>

Error

$var

45/260

45.

What is the output of the following line of code?

<?php
echo "4" + 05 + 011 + ord('a');
?>

117

115

46/260

46.

What will be the output of the following PHP code ?

<?php
$x = 1;
if ($x--)
    print "hi"
    $x--;
else
    print "hello"
?>

no output

hello

error

47/260

47.

Which values should be assigned to the variables $a, $b and $c in order for the following script to display the string Hello, World!?

$string = "Hello, World!";
$a      = '';
$b      = '';
$c      = '';
if ($a) {
    if ($b && !$c) {
        echo "Goodbye Cruel World!";
    } else if (!$b && !$c) {
        echo "Nothing here";
    }
} else {
    if (!$b) {
        if (!$a && (!$b && $c)) {
            echo "Hello, World!";
        } else {
            echo "Goodbye World!";
        }
    } else {
        echo "Not quite.";
    }
}
?>

True, True, False

False, True, True

False, False, True

False, True, False

True, True, True

48/260

48.

You run the following PHP script:

<?php
function calc()
{
    $x=10;
    $b=++$x;
    print($b);
}
calc();
?>

What will be the value of the variable b?

The script will throw an error message.

49/260

49.

Which of the following type of variables are special variables that hold references to resources external to PHP (such as database connections)

Arrays

Strings

Objects

Resources

50/260

50.

Which of the following are the core extensions? Each correct answer represents a complete solution. Choose all that apply.

Arrays

PECL

Classes

Objects

51/260

51.

What will this script output?

echo "Apples"<=>"bananas" ? 'foo' : 'bar';

foo

bar

None of the above

52/260

52.

Which of the below provided options is correct regarding the below code?

<?php 
    $a = array (1, 2, 3);
    $b = array (1 => 2, 2 => 3, 0 => 1); 
    $c = array ('a' => 1, 'b' => 2, 'c' => 3);
    var_dump ($a == $b); 
    var_dump ($a === $b); 
    var_dump ($a == $c); 
?>

true false false

true true false

true false true

false true true

53/260

53.

What will be the output of the following PHP code ?

<?php
    $one = "one";
    $two = "two";
    print($one$two);
?>

onetwo

nothing

one

error

54/260

54.

Which of the following are valid constant names? (Choose three)

AEN

8rutil

R7yu

9tur8UH4

ablwesc_99

YU-8

111

55/260

55.

What will be the output of the following PHP code ?

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

42: 42

ERROR

IF:

IF: 42

56/260

56.

What is the output of the following code snippet?

<?php
$a = 20;
function myfunction($b) {
    $a = 30;
    global $a, $c;
    return $c = ($b + $a);
}
print myfunction(40) + $c;
?>

140

Syntax Error

120

57/260

57.

What will be the output of the following PHP code ?

<?php
$i = 0;
$j = 0;
if ($i && ($j = $i + 10)) {
    echo "true";
}
echo $j;
?>

true10

true0

58/260

58.

How should we add a single line comment in our PHP code?
i) /?
ii) //
iii) #
iv) /* */

Only ii)

i), iii) and iv)

ii), iii) and iv)

Both ii) and iv)

59/260

59.

What will be the output of the following PHP code ?

<?php
$i = "";
while ($i)
{   
    print "hi";
} 
while($i < 8) {
    $i++;
    print "hello";
}
?>

Hi is printed once, hello 8 times

hello printed 8 times

Hi is printed 8 times, hello 8 times

Hi is printed 8 times

60/260

60.

What will be the output of the following PHP code ?

<?php
$x = 1;
$y = 2;
if (++$x == $y++)
{
    echo "true ", $y, $x;
}
?>

no output

true 32

true 22

true 33

61/260

61.

What will be the output of the following PHP code ?

<?php
$y = 2;
if ($y-- == ++$y)
{
    echo $y;
}
?>

no output

62/260

62.

You run the following PHP script:

<?php
    $a=12;
    $b=11;   
    $a>$b ? print($a) : print($b);
?>

The script will throw an error.

63/260

63.

What will be the output of the following PHP code ?

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

red

nothing

error

red red

64/260

64.

What will be the output of the following PHP code ?

<?php
$i = 0; $j = 1; $k = 2;
print !(($i + $k) < ($j - $k));
?>

true

false

65/260

65.

What is the best way to iterate through the $myarray array, assuming you want to modify the value of each element as you do?

<?php
    $myarray = array ("My String", "Another String", "Hi, Mom!");
?>

Using a do...while loop

Using a foreach loop

Using a for loop

There is no way to accomplish this goal

Using a while loop

66/260

66.

Consider the following code:

<?php
function modvalue()
{
       $a=20;
       $b=4;
       $c=$a%$b;
       print($c);
} 
modvalue();
?>

What will be the value of the variable c?

67/260

67.

What is the output of this script?

<?php
echo 10 <=> 10 << 1;

-1

68/260

68.

What is the output of the following code?

<?php
$a = 1;
function calculate() {
   global $a;
   $a += 7;
   $a = $a * 043;
   return --$a;
}
echo $a;
?>

342

279

343

69/260

69.

What is the output of the following PHP code?

       define("FOO", 10);
       $array = [10 => FOO, "FOO" => 20];
       echo $array[$array[FOO]] * $array["FOO"];

200

100

FOO

70/260

70.

What will this code output?

<?php
$a = 1.23;
$b = 4.56;
$c = (int)$a + (int)$b;
echo (double)$c;

None of the above

5.79

71/260

71.

What will be the output of the following PHP code ?

<?php
$y = 2;
if (**$y == 4)
{
    echo $y;
}
?>

error at line 3

no output

72/260

72.

You run the following PHP script:

<? 
    $a=20%-8;
    echo $a;
?>

-4

-2

Script will show an error message.

73/260

73.

Can I generate DLL files from PHP scripts like i can in Perl ?

yes

74/260

74.

What will the output of this code be?

<?php
$result = echo print("Hello world!");
var_dump($result);

syntax error

Hello world!NULL

1NULL

NULL

75/260

75.

What will be the output of the following PHP code ?

<?php
for ($i = 0; -5 ; $i++)
{
    print"$i";
    if ($i == 3)
        break;
}
?>

0123

012345

error

01234

76/260

76.

Which of the following are valid identifiers (Choose 3)

function _4You() { }

function 4You() { }

function object() { }

$_1 = "Hello World";

$1 = "Hello";

77/260

77.

What will be the output of the following PHP code ?

<?php
$a = 10;
if (1) 
    print "all";
else 
    print "some"
else 
    print "none";
?>

none

Parse error: syntax error

some

all

78/260

78.

What will this script output?

<?php
function A() {
    try {
        b();
    } catch (Exception $e) {
        echo "Exception caught in " . __CLASS__;
    }
}
function B() {
    C();
}
try {
    A();
} catch (Error $e) {
    echo "Error caught in global scope: " . $e->getMessage();
}

Exception caught in A

Error caught in global scope: Call to undefined function C()

None of the above

Error caught in global scope: Call to undefined function b()

79/260

79.

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();
?>

ERROR

0.01.0

No output

80/260

80.

What is the output of:

<?php
$a = 10;
echo strlen($a) . count($a);
do {
   echo $a . "elephpant ";
   $a++;
} while($a <= 1);
?>

1210elephpant

10elephpant

2110elephpant

81/260

81.

What will be the output of the following PHP code ?

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

54321111111.....infinitely

54321

555555555....infinitely

82/260

82.

Which of the following options shows the correct IF statement format?

if (expression) { // code to execute if the expression evaluates to true }

if (expression) ( // code to execute if the expression evaluates to true )

if {expression} ( // code to execute if the expression evaluates to true )

if [expression] ( // code to execute if the expression evaluates to true )

83/260

83.

What will be the output of the following PHP code ?

<?php
     $one = "one";
     $two = "two";
     print($one,$two);
?>

onetwo

error

one

one, two

84/260

84.

What is the output of the following?

<?php
$a = 0xf2 + 0x09;
$b = $a >> 3;
echo $b;
?>

85/260

85.

What will be the output of the following PHP code ?

<?php
$x = 1;
if ($x = $x&0)
    print $x ;
else
    print "how are u";
?>

how are u

error

86/260

86.

Which of the following is not valid PHP code?

$10_somethings

&$something

$_10

${"MyVar"}

$aVaR

87/260

87.

What will be the output of the following PHP code ?

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

infinite loop

88/260

88.

Run-time inclusion of a PHP script is performed using the ____ construct, while compile-time inclusion of PHP scripts is performed using the ____ construct.

include_once, include

require, include

All of the above are correct

require_once, include

include, require

89/260

89.

Consider the following PHP script:

<?php
$a = 5; 
$b = 4; 
$c = ($a++ * ++$b);  
echo $c;
?>

What will be the output?

90/260

90.

How can a script come to a clean termination?

When Apache terminates because of a system problem

When PHP crashes

When the execution reaches the end of the current file

When exit() is called

91/260

91.

What will be the output of the following PHP code ?

<?php
for ($i = 0; $i % ++$i; $i++) 
{
    print"i";
}
?>

infinite loop

no output

error

92/260

92.

What will be the output of the following PHP code ?

<?php
echo "echo "Hello World"";
?>

Hello world

echo 'Hello world'

Error

echo Hello world

93/260

93.

What is the value displayed when the following is executed? Assume that the code was executed using the following URL:

testscript.php?c=25 
<?php
    function process($c, $d = 25)
    {
        global $e;
        $retval = $c + $d - $_GET['c'] - $e;
        return $retval;
    }
    $e = 10;
    echo process(5);
?>

-5

94/260

94.

What will the output of this function be?

<?php
$number = 1234.5678;
echo number_format($number, 2, ',', '.') . PHP_EOL;

1,234.568

None of the above

1.234,57

1,235

95/260

95.

Which of the following expressions multiply the value of the integer variable $a by 4?

$a *= pow (2, 2);

$a <<= 2;

$a += $a + $a;

$a >>= 2;

96/260

96.

What will be the output of the following PHP code ?

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

0 1 2 3 4 5

infinite loop

0 1 0 1 2 0 1 2 3 0 1 2 3 4 0 1 2 3 4 5 0 1 2 3 4 5

no output

97/260

97.

You have been given a code snippet as follows:

$somearray = array("hi", "this is a string", "this is a code");

You want to iterate this array and modify the value of each of its elements. Which of the following is the best possible to accomplish the task?

While loop

Do while loop

Foreach loop

For loop

98/260

98.

Assume that today is January 8th, 2013, 5:16:18 pm in MST time zone.

<?php
        echo date('l \t\h\e jS');
?>

Tuesday the 8th

it is the 8th day

January 8, 2013, 5:16 pm

01.08.13

99/260

99.

What is the output of the following PHP code?

<?php
    define('FOO', 10);
    $array = array(10 => FOO,"FOO" => 20);
    print $array[$array[FOO]] * $array["FOO"];
?>

FOO

100

200

100/260

100.

Which of the following is NOT a strongly typed language?

PHP

JAVA

C++

101/260

101.

What will be the output of the following PHP code ?

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

210

infinite loop

no output

102/260

102.

What is the output of following code?

   $a = 1;
   ++$a;
    $a *= $a;
    echo $a--

103/260

103.

What will be the output of the following PHP code ?

<?php
$a = 12;
--$a;
echo $a++;
?>

error

104/260

104.

You run the following PHP script:

<?php
    $num = -123test;
    $newnum = abs( $num );
    print $newnum;
?>

What will be the output?

-123

123

syntax error

105/260

105.

Which of the below symbols is a newline character?

106/260

106.

Which of the following statements explains the difference between print() and echo()?

You cannot use echo() with bitwise operators but you can use print() for this.

There is no difference between echo() and print() functions.

You can use print() as part of an expression while you cannot use echo().

You can use print() to print numbers while you cannot use echo for this.

107/260

107.

Consider the following code:

<?php   
    $a=5;
    $b=12;
    $c=10;
    $d=7;
    $e=($a*$b)+$c*$d/$a;
    print($e);
?>

What will be the output of the above code?

130

154

108/260

108.

In which of the following ways does the identity operator === compare two values?

It evaluates to true only if the operands are of the same data type and have the same value.

If the two values are strings, it performs a lexical comparison.

It evaluates to true if the two operands are equivalent.

It is an alias of strcmp() function.

109/260

109.

What does the following function do, when passed two integer values for $p and $q?

<?php
function magic($p, $q)
{  
     return ($q == 0)    ? $p    : magic($q, $p % $q);
}
?>

Determines the greatest common divisor between them.

Switches the values of $p and $q.

Loops infinitely.

Determines if they are both even or odd.

110/260

110.

Which of the following code can be used to create case insensitive constant?

<?php define("GREETING","How are you today?",TRUE); echo constant("greeting"); ?>

<?php define("GREETING","How are you today?",'USECASE'); echo constant("greeting"); ?>

<?php define("GREETING","How are you today?",FALSE); echo constant("greeting"); ?>

<?php define("GREETING","How are you today?"); echo constant("greeting"); ?>

111/260

111.

What will be the output of the following PHP code ?

<?php
$on$e = 1;
$tw$o = 2;
$thre$e = 3;
$fou$r = 4;
echo "$on$e / $tw$o + $thre$e / $fou$r"; 
?>

0.05

Error

1.25

0.75

112/260

112.

Consider the following script:

<?php
    echo date("M-d-Y", mktime(0, 0, 0, 12, 32, 1995));
?>

What will be the output of the above script?

Date out of range error

Fatal error

Jan-01-1995

Jan-01-1996

113/260

113.

What will be the output of the following PHP code ?

<?php
$var1 = 1 + ++5;
echo $var1; 
?>

no output

error

114/260

114.

What will be the output of the following PHP code ?

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

error

-1-1-1-1-1-1-1-1-1-1....infinitely

no output

00000000000000000000....infinitely

115/260

115.

What gets printed?

<?php

$RESULT = 11 + 011 + 0x11;

echo "$RESULT";

?>

116/260

116.

What will this script output?

<?php
$a = "0";
$c = $b = empty($a);
$d = ++$b + $a;
echo $d;

Syntax error; you can’t assign two variables on one line

117/260

117.

The PHP syntax is most similar to:

VBScript

JavaScript

Perl and C

118/260

118.

You run the following script:

<?php
    $a = 6 - 10 % 4;
    echo $a;
?>

What will be the output?

119/260

119.

What does the following code snippet do?

$a = `ls -l`;

It will not give any result as ls -l is just a string enclosed under single quotes.

It will cause the output of the UNIX ls command to be stored inside $a.

It will cause an error.

It will cause a warning message.

120/260

120.

What will be the output of the following PHP code ?

<?php
$color = 'red';
echo "\$color";
?>

$color

\red

red

Error

121/260

121.

What is the output of this script?

<?php
$a = 0b0010;
$b = 0b0001;
echo gettype($a & $b);

boolean

double

Syntax error; this won’t run

integer

122/260

122.

You run the following PHP script:

<?php
for($x = 1; $x <= 2; $x++){
      for($y = 1; $y <= 3; $y++){
         if ($x == $y) continue; 
         print("x = $x  y =  $y");
      }
   }
?>

What will be the output? Each correct answer represents a complete solution. Choose all that apply.

x = 1 y = 3

x = 2 y = 3

x = 1 y = 2

x = 2 y = 1

x = 2 y = 2

x = 1 y = 1

123/260

123.

Which of the following is NOT a valid PHP variable name?

$_a

$$a

$1a

124/260

124.

Which of the following is NOT a valid PHP comparison operator?

<=>

125/260

125.

What will be the output of the following PHP code?

<?php
$x;
if ($x)
    print "hi" ;
else
    print "how are u";
?>

no output

error

how are u

126/260

126.

What will be the output of the following PHP code ?


<?php
$a = 0x6db7;
print $a<<6;
?>

error

no output

0x6dc0

1797568

127/260

127.

How to use header() function in PHP correctly?

header("Location: newpage.php");

None of these

header("Location" : "newpage.php");

header("Location: , newpage.php");

128/260

128.

Which of the following are superglobals in PHP? (choose three)

$_FORMS

$_GLOBAL

$_ENVIRONMENT

$_SERVER

$_COOKIE

$_REQUEST

$_COOKIES

$_DATA

129/260

129.

What is the difference between isset() and other is_*() functions (is_alpha(), is_number(), etc.)?

isset() is a function call and is_*() are not function calls

is_*() are language constructs and isset() is not a language construct

is_*() return a value whereas isset() does not

isset() is a language construct and is_*() are not language constructs

130/260

130.

Which of the following are valid PHP variables?

@$foo

${0x0}

$0x0

&$variable

131/260

131.

Which of the following are NOt case sensitive in php? Choose all that apply.

Namespaces

Function names

Class names

Variable names

132/260

132.

What will be the output of the following PHP code ?

<?php
$b = 1; $c = 4; $a = 5; 
$d = $b + $c == $a;
print $d;
?>

133/260

133.

What will be the output of the following PHP code ?

<?php
const $b = 1;
switch($b)
{
case 1:
    print "hi";
    break;
case 1:
    print "hello";
    break;
default:
    print "hi1";
}
?>

hihello

hello

Parse error

134/260

134.

What will be the output of the following PHP code ?

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

hihello

hello

error

infinite loop

135/260

135.

What will be the output of the following PHP code ?

<?php
$b = 1;
switch($b)
{
case 1.0:
    print "hi";
    break;
case 1:
    print "hello";
    break;
default:
    print "hi1";
}
?>

hello

hihello

hihellohi1

136/260

136.

What would you replace ??????? with, below, to make the string Hello, World! be displayed?

    function myfunction() {
        /* ??????? */
        echo $string;
    }
    myfunction("Hello, World!");

$string = $argv[1];

$string = get_function_args();

list($string) = func_get_args();

$string = $_ARGV[0];

137/260

137.

Which language construct can best represent the following series of if conditionals?

<?php
    if($a == 'a') {
        somefunction();
    } else if ($a == 'b') {
        anotherfunction();
    } else if ($a == 'c') {
        dosomething();
    } else {
        donothing();
    }
?>

It is the only representation of this logic

A switch statement without a default case

A switch statement using a default case

A while statement

A recursive function call

138/260

138.

What will be the output of the following PHP code ?

<?php
$i = 0;
do
{
    $i++;
}
while ($i < 3);
print $i;
?>

139/260

139.

What will be the output of the following PHP code ?

<?php
    echo "This", "was", "a", "bad", "idea";
?>

This, was, a, bad, idea

Error

This was a bad idea

Thiswasabadidea

140/260

140.

What will be the output of the following PHP code ?

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

test

testtest

testvalue

error, constant value cannot be changed

141/260

141.

What will be the output of the following code snippet?

<?php
$a = 1;
$b = 2;
$c = 0xAF;
$d = $b + $c;
$e = $d * $b;
$f = ($d + $e) % $a;
print($f + $e);
?>

354

The script will throw an error message

200

142/260

142.

Function world() is defined in the namespace 'myapp\utils\hello'. Your code is in namespace 'myapp'.
What is the correct way to import the hello namespace so you can use the world() function?

use mayapp\utils\hello

use utils\hello

use myapp\utils\hello\world;

use hello

143/260

143.

Which of the following options is/are correct regarding variable scopes in PHP?

global, script and function

global, function and class

class, global and script

script, function and class

144/260

144.

Consider the following PHP script:

<?php
function b($a = 4)
{
  $a = $a / 2;
  return $a;
}
$a = 10;
b($a);
echo $a;
?>

What will be the output?

The script will throw an error message.

145/260

145.

Consider the following PHP script:

<html>
<head>
<title>
    This is a test script.
</title>
</head>
<body>
<?php
    echo (int) ((0.1 + 0.7) * 10);
?>
</body>
</html>

What will be the output of the PHP script?

The PHP script will return an error message.

146/260

146.

Which of the below statements is equivalent to $add += $add ?

$add = $add

$add = $add + $add + 1

$add = $add + 1

$add = $add +$add

147/260

147.

What will this script output?

<?php
$a = "Hello";
$B = " world";
ECHO $a . $b;

Hello world

an error message because the variable b is not defined

Hello

Nothing; it won't run

148/260

148.

What will be the output of the following PHP code ?

<?php
$var1 = 1;
echo $var1 = ++$var1 % 2 + ++$var1; 
?>

149/260

149.

What will be the output of the following PHP code ?

<?php
$a = "hello";
if ($a.length)
    print $a.length;
else
    print "hi";
?>

hellolength

error

150/260

150.

What will be the output of the following PHP code ?

<?php
print_r "Hello world"
?>

Missing semicolon error

Nothing

Parse Error

Hello World

151/260

151.

What will be the output of the following PHP code ?

<?php
$var1 = 3;
print $var = ++$var;
?>

152/260

152.

What will be the output of the following PHP code ?

<?php
if (print "0")
    print "hi" ;
else
    print "how are u";
?>

0hi

0how are u

how are u

153/260

153.

What will this script output?

<?php
$a = "foo";
$$a = "bar";
$a = "Hello world";
echo ${"foo"};
?>

bar

Syntax error; this won’t run

Hello world

foo

154/260

154.

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));
?>

PHP is a scripting language GREETING_TEST

PHP is a scripting language PHP is a scripting language

PHP is a scripting language

GREETING_TESt

155/260

155.

What will be the output of the following PHP code ?

<?php
$i=0;
for (1; $i == 1; $i = 2)
    print "In for loop ";
print "After loop\n";
?>

After for loop

In for loop

In for loopAfter for loop

Infinite loop

156/260

156.

What will be the output of the following PHP code ?

<?php
$a = 2;
if ($a-- - --$a - $a)
    print "hello";
else
    print "hi";
?>

hello

no output

error

157/260

157.

What will be the output of the following PHP code ?

<?php
$y = 2;
if (--$y <> ($y != $y++))
{
    echo $y;
}
?>

no output

158/260

158.

You run the following script:

<?
    10 = $a;
    echo $a;
?>

Script will output an error.

159/260

159.

which one of these variables has illegal name?

None of them

$my_Var

$my-Var

$myVar

160/260

160.

The ____ operator returns True if either of its operands can be evaluated as True, but not both.

161/260

161.

What will be the output of the following PHP code ?

<?php
    $one = "one";
    $two = "one";
    print($one == $two);
?>

false

true

error

162/260

162.

Fred works as a Web developer in Fastech Inc. He writes the following script:

<?php
    $s = 2;
    switch ($s) {
      case 1:
         print("Fred");
         break;
      case 2:
         print("Fast");
      case 3:
         print("Tech");
      default: print("default");
    }
?>

What will be displayed as output when Fred attempts to run this PHP script?

Fast

Fast Tech

default

FastTechdefault

163/260

163.

Which statement will output $x on the screen?

echo "$$x";

echo "$x;";

echo "/$x";

echo "\$x";

164/260

164.

Which of the following tags should you avoid using to include php in htML?

<?php

None of the above; these are all fine

165/260

165.

What will be the output of the following code?

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

My name is Bob Bob

Error

My name is BobMy name is Bob

My name is BobBob

166/260

166.

What will be the output of the following PHP code?

<?php
    $num  = 1;
    $num1 = 2;
    print $num . "+". $num1;
?>

Error

1+2

1.+.2

167/260

167.

What will be the output of the following code?

<?php
    function track() {
         static $count = 0;
         $count++;
         echo $count;
    }
    track();
    track();
    track();
?>

011

000

123

111

168/260

168.

Choose the appropriate function declaration for the user-defined function is_leap(). Assume that, if not otherwise defined, the is_leap function uses the year 2000 as a default value:

<?php
    /* Function declaration here */
    {
        $is_leap = (!($year %4) && (($year % 100) || !($year % 400))); 
        return $is_leap;
    }
    var_dump(is_leap(1987)); /* Displays false */
    var_dump(is_leap()); /* Displays true */
?>

function is_leap($year)

function is_leap(2000 = $year)

is_leap($year default 2000)

function is_leap($year = 2000)

function is_leap($year default 2000)

169/260

169.

PHP is a _____ scripting language based on the _____ engine. It is primarily used to develop dynamic _____ content, although it can be used to generate _____ documents (among others) as well.

Dynamic, PHP, Database, HTML

Zend-based, PHP, Image, HTML

Embedded, Zend, Docbook, MySQL

Perl-based, PHP, Web, Static

Embedded, Zend, HTML, XML

170/260

170.

Consider the following segment of code:

<?php
    define("STOP_AT", 1024);
        $result = array();
    /* Missing code */
    {
        $result[] = $idx;
    }

    print_r($result);
?>

What should go in the marked segment to produce the following array output?

Array
{
 [0] => 1
 [1] => 2
 [2] => 4
 [3] => 8
 [4] => 16
 [5] => 32
 [6] => 64
 [7] => 128
 [8] => 256
 [9] => 512
}

for($idx = 1; $idx < STOP_AT; $idx *= 2)

while($idx *= 2)

foreach($result as $key => $val)

for($idx *= 2; STOP_AT >= $idx; $idx = 0)

while($idx < STOP_AT) do $idx *= 2

171/260

171.

Which of the following statements is/are FALSE regarding functions in PHP?

PHP can allow functions to return variables.

Return value of a function can be specified by using return keyword.

Functions in PHP cannot return expressions by reference.

Concept of void functions exists in PHP.

172/260

172.

What will be the output of the following PHP code ?

<?php
$y = 2;
if (--$y == 2 || $y xor --$y)
{
    echo $y;
}
?>

no output

173/260

173.

What is the output of this scrip?

<?php
define('A', 1);
const B = 2;
define('C', [A * A, B * B]);
echo(C[1]);

this will generate an error because constants can only hold scalar values.

this will generate an error because you cannot use define() to declare an array constant.

174/260

174.

What will be the output of the following PHP code ?

<?php
for(;;)
{
   print "10";
}
?>

no output

infinite loop

error

175/260

175.

Who is the father of PHP?

Drek Kolkevi

Willam Makepiece

List Barely

Rasmus Lerdorf

176/260

176.

You developed a big application accessed by several thousand users at the same time. Suddenly, your web server stops responding and users are getting connection errors.What could have happened?

The database server was terminated because of the unusually high amount of database accesses.

You didn’t optimize your code design properly.

The web server was misconfigured so that it ran into virtual memory usage and consequent resource starvation because of too many child processes.

177/260

177.

Which of the following is used to set a constant?

con

set

define

new

178/260

178.

What will the following script output?

<?php
    $x = 3 - 5 % 3;
    echo $x;
?>

null

179/260

179.

What is the value of $a and $b after the function call?

<?php
    function doSomething( &$arg ) {
        $return = $arg;
        $arg += 1;
        return $return; 
    }
    $a = 3;
    $b = doSomething( $a );
?>

a is 3 and b is 4

Both are 4

a is 4 and b is 3

Both are 3

180/260

180.

what is the name of the error level constant that is used to designate PHP code that will not work in future versions?

181/260

181.

What is the output of the following script?

<?php
    $a = 10;
    $b = 20;
    $c = 4;
    $d = 8;
    $e = 1.0;
    $f = $c + $d * 2;
    $g = $f % 20;
    $h = $b - $a + $c + 2;
    $i = $h << $c;
    $j = $i * $e;
     print $j;
?>

342

242.0

128

256

182/260

182.

Consider the following script:

<?php 
      echo strtotime("january 1, 1901"); 
?>

What will be the output of the above PHP script if the older versions of glibc are present in the operating system?

14345

-2177424000

12365

183/260

183.

What will be the output of the following PHP code ?

<?php
for ($i = 0;$i = -1;$i = 1)
{
    print $i;
    if ($i != 1) 
    break;
}
?>

infinite loop

-1

184/260

184.

Which is the right way of declaring a variable in PHP?
i) $3hello
ii) $_hello
iii) $this
iv) $This

Only ii)

ii) and iv)

ii), iii) and iv)

Only iii)

185/260

185.

What will this script output?

<?php

class MyException extends Exception {}
class ChildException extends MyException {}

try {
    throw new ChildException;
} catch (Exception $e) {
    echo "Caught Exception: " . get_class($e);
} catch (MyException $e) {
    echo "Caught MyException" . get_class($e);
}

Caught Exception: ChildException

an error message related to an uncaught exception

Caught MyException: ChildException

Caught MyException: MyException

186/260

186.

What will be the output of the following PHP script:

<?php
function modifyArray (&$array) 
{
    foreach ($array as &$value)
    {
         $value = $value + 2; 
    } 
    $value = $value + 3; 
 } 
$array = array (1, 2, 3); 
modifyArray($array); 
print_r($array);
?>

Array ( [0] => 2 [1] => 4 [2] => 6 )

Array ( [0] => 1 [1] => 2 [2] => 3 )

Array ( [0] => 3 [1] => 4 [2] => 8 )

Array ( [0] => 5 [1] => 7 [2] => 9 )

187/260

187.

You work as a Web Developer for Remote Inc. What will be the output when you try to run the script below?

<?php
    $b = false;
    if($b = true)
      print("true");
    else
      print("false");
?>

false

The script will throw an error message.

true

true false

188/260

188.

You run the following PHP script:

<?php
    $sale = 200;
    $sale = $sale- + 1;
    echo $sale;
?>

What will be the output?

201

202

199

200

189/260

189.

What will this code output?

    namespace A;
    $closure = function() { echo __NAMESPACE__; };
    namespace B;
    $closure = function() { echo __NAMESPACE__; };
    namespace C;
    $closure();

This produces an error; functions and closures cannot be namespaced

This produces an error; the closure is not defined in namespace C

190/260

190.

What will be the output of the following PHP code ?

<?php
for ($count = 1; $count < 20; $count++);
    print $count;
?>

12345678910....19

12345678910....1920

191/260

191.

Mark works as a Web Developer for Unicorn Inc. He develops an application in PHP using the following code:

<?php
      switch(1) {
      case 1: print("Book Details"); 
      case 2: print("Book Author"); 
      default: print("Missing Book");
      }
?>

What will be the output of the script?

It will display all the three lines.

The script will throw an error.

Book Details

Missing Book

Book Author

192/260

192.

<?php
    class Foo
    {
?>

<?php
        function bar()
        {
            print "bar";
        }
    }
?>

which is correct?

will work, class definitions can be split up into

will not work, class definitions must be in a single file but can be in multiple PHP blocks.

will work, class definitions can be split up into multiple PHP blocks.

will not work, class definitions must be in a single PHP block.

193/260

193.

What will be the output of the following PHP code ?

<?php
$x;
for ($x = -3; $x < -5; ++$x)
{
    print ++$x;
}
?>

-3-4-5

-3-4

infinite loop

no output

194/260

194.

What is displayed when the following script is executed?

<?php

 define(myvalue, "10");
 $myarray[10] = "Dog";
 $myarray[] = "Human"; 
$myarray['myvalue'] = "Cat";
 $myarray["Dog"] = "Cat";
 print "The value is: "; print $myarray[myvalue]."\n";

?>

The value is: Cat

The value is: Dog

The value is: Human

The value is: 10

Dog

195/260

195.

What will be the output of the following PHP code ?

<?php
$i = 0
while ($i != 3)
{
    print "hi";
    $i++;
}
?>

hihihihi

hihi

hihihi

196/260

196.

What will be the output of the following PHP code ?

<?php
$auth = 1;
$status = 1;
if ($result = (($auth == 1) && ($status != 0)))
{
    print "result is $result";
}
?>

error

result is 1

no output

result is true

197/260

197.

What will be the output of the following PHP code ?

<?php
$i = 0
do
{
    print "hi";
    $i++;
}
while ($i != 3);
?>

hihihihi

hihi

hihihi

198/260

198.

What will be the output of the following PHP code ?

<?php
$x = 10;
$y = 5;
$z = 3;
if ($x / $y / $z)
    print "hi";
else
    print "hello";
?>

no output

error

hello

199/260

199.

What will be the output of the following PHP code ?

<?php
$a  =  '12345';
echo "qwe$arty";
?>

qwe12345rty

error

qwe$arty

qwe

200/260

200.

Which one of the following four logical operators of PHP is not binary?

NOT

AND

XOR

201/260

201.

What is the difference between print() and echo()?

print() can be used in the CLI version of PHP, while echo() can't

print() can be used as part of an expression, while echo() can't

There's no difference: both functions print out some text!

echo() can be used as part of an expression, while print() can't

echo() can be used in the CLI version of PHP, while print() can't

202/260

202.

Consider the following code:

<?php
    $a;
    for($a=1;$a<=100;$a++)
    {
    if($a==50)
    {
        continue;
    }
    print($a);
    }
?>

What will be the output of the program?

A series from 1 to 100 will be printed. The number 50 will not be printed.

A series from 1 to 50 will be printed.

A series from 51 to 100 will be printed.

A series from 1 to 100 will be printed.

203/260

203.

What will the following script output?

$array = '0123456789ABCDEFG';
$s = '';
for ($i = 1; $i < 50; $i++) {
    $s .= $array[rand(0,strlen ($array) - 1)];
}
echo $s;

A string of 49 copies of the same character, because the random number generator has not been initialized

A string of 50 random characters

A string of 49 'G' characters

Nothing, because $array is not an array

A string of 49 random characters

204/260

204.

Which version of PHP introduced Try/catch Exception?

PHP 4

PHP 6

PHP 5

PHP 5 and later

205/260

205.

Which of the following options is NOT as valid tag for PHP 7.1 script?

<?php ... ?>

<? .. ?>

<% ... %>

<?= ... ?>

206/260

206.

What will be the output of the following PHP code ?

<?php
echo 'Hello World';
<html>
Hello world
</html>
?>

Hello <html> Hello world </html>

Syntax Error

Hello World Hello World

Hello world

207/260

207.

What will be the output of the following PHP code ?

<?php
$x = 10;
$y = 4;
$z = 3;
echo $x % $y % $z;
?>

error

208/260

208.

What will the code output?

<?php
$a = 0;
$b = $a++;
$a = $a + 1;
echo --$a;

An error will occur

209/260

209.

Which of the following operators has the highest precedence order?

[

210/260

210.

What will be the output of the following PHP code ?

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

ERROR

__LINE__

PHP is a scripting language

211/260

211.

What is the length of the hash generated by the crc32() crypto function?

128

512

212/260

212.

What is the result when the following PHP code involving a boolean cast is executed?

<?php
 var_dump( (bool) 5.8 );
?>

bool(False)

bool(True)

213/260

213.

Which of the following functions returns current Unix timestamp?

time()

strtotime()

date()

localtime()

214/260

214.

How can we create a unique random password in PHP?

echo pass(uniqid(rand(), true));

echo md5(uniqid(rand(), true));

echo (pass(rand(), true));

echo md5(pass(rand(), true));

215/260

215.

How does the identity operator === compare two values?

It returns True only if they are both of the same type and value

If the two values are strings, it performs a lexical comparison

It bases its comparison on the C strcmp function exclusively

It converts them to a common compatible data type and then compares the resulting values

216/260

216.

What is the output of the following PHP script?

    $a = 1;
    $b = 2.5;
    $c = 0xFF;
    $d = $b + $c;
    $e = $d * $b;
    $f = ($d + $e) % $a;
    echo ($f + $e);

257

432.75

643.75

643

432

217/260

217.

What will be the output of the following PHP code ?

<?php
$a = 1;
if (echo $a)
    print "True";
else
    print "False"; 
?>

1true

true

error

false

218/260

218.

Which PHP functions may be used to find out which PHP extensions are available in the system?

get_extension_funcs()

extension_loaded()

phpinfo()

get_loaded_extensions

219/260

219.

Which of the following statements are true when applied to a Registry pattern? (choose two)

It uses static methods

It implements ArrayAccess

It is designed to store values of various types

It takes responsibility for instantiating objects

Only one instance of the class can exist

220/260

220.

You run the following PHP script:

<php
     echo 0x33, ' birds sit on ', 022, ' trees.';
?>

What will be the output?

51 birds sit on 18 trees.

51 birds sit on 0 trees.

51 birds sit on trees.

51 birds sit on 22 trees.

221/260

221.

What is the output of this script?

<?php
$a = "apples" <=> "bananas";
$b = $a ?? $c ?? 10;
echo $b;

apples

-1

222/260

222.

What will be the output of the following PHP code ?

<?php
    $one = "Hello";
    $two = "World";
    echo "$one"+"$two";
?>

HelloWorld

Error

Hello+World

223/260

223.

What will be the output of the following PHP code ?

<?php
if (0.0)
    print "hi" ;
else
    print "how are u";
?>

how are u

no output

error

224/260

224.

Which of the following gives a string containing PHP script file name in which it is called?

$php_errormsg

$_SESSION

$_COOKIE

$_SERVER['PHP_SELF']

225/260

225.

What is the output of the following code:

<?php
function a($a) {
   echo $a . "&";
}
function b($a) {
   echo "-" . $a;
}
$a = "!";
$b = &$a;
echo a(b($b));
?>

-&!

!&-!

!&-&

-!!&

-!&

226/260

226.

what is the output of the following script?

<?php
    function fibonacci ($x1, $x2)
    {
        return $x1 + $x2;
    }
    $x1 = 0;
    $x2 = 1;
    for($i = 0; $i < 10; $i++){
        echo  fibonacci ($x1, $x2). ',';
    }
?>

1,2,3,4,5,6,7,8,9

1,2,3,4,5,6,7,8,9,10,

1,2,3,5,8,13,21,34,55,89,

1,1,1,1,1,1,1,1,1,1,

227/260

227.

Consider the following script:


<?php
    function myfunction($a, $b = true)
    {
        if($a && !$b) {
            echo "Hello, World!\n";
        }
    }
    $s = array(
         0 => "my",
         1 => "call", 
         2 => '$function', 
         3 => ' ',
         4 => "function", 
         5 => '$a',
         6 => '$b', 
         7 => 'a',
         8 => 'b',
         9 => ''
        );
    $a = true;
    $b = false;
    /* Group A */
    $name = $s[?].$s[?].$s[?].$s[?].$s[?].$s[?];
    /* Group B */
    $name(${$s[?]}, ${$s[?]});
?>

Each ? in the above script represents an integer index against the $s array. In order to display the Hello, World! string when executed, what must the missing integer indexes be?

Group A: 4,3,0,4,9,9 Group B: 7,8

Group A: 1,3,0,4,9,9 Group B: 7,6

Group A: 4,3,0,4,9,9 Group B: 7,8

Group A: 0,4,9,9,9,9 Group B: 7,8

Group A: 1,3,2,3,0,4 Group B: 5,8

228/260

228.

What is the output of the following?

<?php
$a = 7;
$b = 4;
function b($a, $b) {
   global $a, $b;
   $a += 7;
   $a++;
   $b += $a;
   return true;
}
echo $b, $a;
?>

1915

1519

229/260

229.

What is the order of parameters in the mail() function?

subject, to address, extra headers, body

to address, subject, extra headers, body

subject, to address, body, extra headers

to address, subject, body, extra headers

230/260

230.

What will be the output of the following PHP code ?

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

PHP is a scripting language

Undefined variable: GREETING

no output

$GREETING

231/260

231.

You run the following PHP script:

<? 
    echo (int) "Jason 1235"; 
?>

What will be the output?

1235

Jason

It will throw a script error.

232/260

232.

What will be the output of the following PHP code?

 <?php
    $score = 1234;
    $scoreboard = (array) $score;
    echo $scoreboard[0];
    ?>

Error

1234

233/260

233.

Which of the following type of variables are special type that only has one value: NULL?

Doubles

Booleans

NULL

Strings

234/260

234.

What will be the output of the following PHP code ?

<?php
$i = 10;
$j = 0;
if ($i || ($j = $i + 10)) {
    echo "true";
}
echo $j;
?>

true0

true20

235/260

235.

What will the output of the following code be?

<?php
$a = range(3,9);
foreach ($a as $b) {
   switch($b) {
      case 3:
      $b = 7;
      case 7:
      $b = 3;
      default:
      // do nothing
   }
}
echo implode('-',$a);
?>

7-4-5-6-7-8-9

7-4-5-6-3-8-9

3-4-5-6-7-8-9

3-4-5-6-7-8-9-10-11

7-4-5-6-3-8-9-10-11

236/260

236.

Which of the following is used to convert all applicable characters to HTML entities?

htmlelements

html_elements

htmlentities

html_entities

237/260

237.

What is the difference between the include and require language constructs?

Include constructs cause a fatal error if the file doesn't exist

Require constructs can't be used with URL filenames'

There is no difference other than the name

Require constructs cause a fatal error if the file can't be read

238/260

238.

Which of the following is a valid namespace operator in PHP?

239/260

239.

What is the return value of echo statement in PHP?

no return value

none of these

240/260

240.

What will be the output of the following PHP code ?

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

210

infinite loop

no output

241/260

241.

What will this script output?

<?php
function A() {
    try {
        b();
    } catch (Exception $e) {
        echo "Exception caught in " . __CLASS__;
    }
}
function B() {
    echo 5 / "five";
}
try {
    A();
} catch (Error $e) {
    echo "Error caught in global scope: " . $e->getMessage();
}

Error caught in global scope: Call to undefined function C()

None of the above

Exception caught in A

Error caught in global scope: Call to undefined function b()

242/260

242.

What will be the output of the following PHP code ?

<?php
$a = 10;
echo ++$a;
echo $a++;
echo $a;
echo ++$a;
?>

11111213

11111212

11111112

11121213

243/260

243.

What will be the output of the following code -

    $Rent = 250;   
    function Expenses($Other) { 
        $Rent = 250 + $Other; 
        return $Rent; 
    }  
    Expenses(50);   
    echo $Rent;

250

Error

300

200

244/260

244.

Mark works as a Web Application Developer for Blue Solutions Inc. He writes the following code:

<?php
    $x =25;
    while($x<10)
    {
        $x--;
    }
    print ($x); 
?>

What will be the output when Mark tries to compile and execute the code?

The script will throw an error message.

245/260

245.

What is the output of this script?

<?php
$a = 3;
echo $a >> 1;

246/260

246.

You run the following PHP script:

<? 
    $a = "b";
    $b = 20;
    echo $$a;
?>

What will be the output?

Script will show an error.

247/260

247.

You run the following script:

<?php
    $a=5 < 2;
    echo (gettype($a));
?>

What will be the output?

boolean

Script will through an error.

string

integer

248/260

248.

when PHP is running on a command line, what super-global will contain the command line arguments specified?

$_ENV

$_ARGV

$_POST

$GLOBALS

$_SERVER

249/260

249.

You run the following script:

<?php
function odd(){
    for($i=1; $i<=50; $i=$i+2)
    {
        echo "$i";
    }
}
echo "The last value of the variable \$i: $i";
?>

What will be the output?

The last value of the variable $i:

The last value of the variable $i: 49

Script will throw an notice.

The last value of the variable $i: 50

250/260

250.

You run the following PHP script:

<? 
    echo (int) "1235Jason"; 
?>

What will be the output?

It will throw a script error.

1235

1235Jason

251/260

251.

What will this code output?

    namespace A;
    function Hello() { echo __NAMESPACE__; }
    namespace B;
    function Hello() { echo __NAMESPACE__; }
    namespace C;
    \B\Hello();

This produces an error; functions cannot be namespaced

252/260

252.

Which of the following is a magic constant?

$_SERVER

__LINE__

$_GET

$_POST

253/260

253.

What will be the output of the following PHP code?

<?php
   $team = "arsenal";
    switch ($team) {
        case "manu":
            echo "I love manu";
        case "arsenal":
            echo "I love arsenal";
        case "manc":
            echo "I love manc";
    }
?>

I love arsenalI love manc

I love arsenal

I love arsenalI love mancI love manu

Error

254/260

254.

what will the following code produce?

define('CONSTANT', 1);
define('_CONSTANT', 0);
define('EMPTY', '');
if(!empty(EMPTY)){
    if(!((boolean) _CONSTANT)){
        print "One";
    }
}
else if(constant('CONSTANT') == 1){
    print "Two";
}

Two

Parse Error

One

255/260

255.

Which of the following data types are compound data types?

Booleans

Objects

Strings

Array

256/260

256.

What will be the output of the following PHP code ?

<?php
$x = 10;
$y = 20;
if ($x > $y && 1||1)
    print "hi" ;
else
    print "how are u";
?>

no output

how are u

error

257/260

257.

What will be the output of the following PHP code ?


<?php
$a = 1; $b = 1; $d = 1;
print ++$a + ++$a+$a++; print $a++ + ++$b; print ++$d + $d++ + $a++;
?>

869

error

742

368

258/260

258.

What should be the correct syntax to write a PHP code?

< ? php ?>

< php >

<? ?>

<?php ?>

259/260

259.

What will be the output of the following PHP code ?

<?php
$x = 1;
if ($x = $x&0)
    print $x;
else
    break;
?>

Fatal error

no output

260/260

260.

What would happen when the following code was run?

<?php
define('Tree', 'oak');
echo 'This tree is: ' . tree;
?>

A notice

An error

This tree is: (and a notice)

This tree is: tree (and a notice)

This tree is: oak (and a notice)