Zend Preparation | Online PHP Quiz

PHP Basics singleQuestion_answer

1/260

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.

2/260

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

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

January 8, 2013, 5:16 pm

Tuesday the 8th

01.08.13

it is the 8th day

3/260

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)

4/260

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?

Missing Book

Book Author

Book Details

It will display all the three lines.

The script will throw an error.

5/260

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);

432

643.75

432.75

643

257

6/260

What will be the output of the following PHP code ?

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

infinite loop

error

no output

7/260

<?php
    class Foo
    {
?>

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

which is correct?

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

will work, class definitions can be split up into

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

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

8/260

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

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

123

NULL

FALSE

TRUE

9/260

What will this script output?

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

foo

Syntax error; this won’t run

bar

Hello world

10/260

10.

How can a script come to a clean termination?

When the execution reaches the end of the current file

When PHP crashes

When exit() is called

When Apache terminates because of a system problem

11/260

11.

What will the following script output?

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

null

12/260

12.

What will be the output of the following PHP code ?

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

no output

Fatal error

13/260

13.

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";
}

One

Parse Error

Two

14/260

14.

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;
?>

15/260

15.

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

It implements ArrayAccess

It is designed to store values of various types

It uses static methods

It takes responsibility for instantiating objects

Only one instance of the class can exist

16/260

16.

What will be the output of the following PHP code ?

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

17/260

17.

What will be the output of the following PHP code ?

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

18/260

18.

What will be the output of the following PHP code ?

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

true 32

no output

true 22

true 33

19/260

19.

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"];
?>

100

200

FOO

20/260

20.

You run the following PHP script:

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

What will be the output?

Script will show an error.

21/260

21.

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

No output

0.01.0

22/260

22.

The PHP syntax is most similar to:

JavaScript

Perl and C

VBScript

23/260

23.

Which of the following data types are compound data types?

Array

Strings

Objects

Booleans

24/260

24.

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

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

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

25/260

25.

What will the output of this code be?

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

1NULL

syntax error

Hello world!NULL

NULL

26/260

26.

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";
}
?>

hihellohi1

hello

hihello

27/260

27.

What will be the output of the following PHP code ?

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

one

one, two

error

onetwo

28/260

28.

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

ii), iii) and iv)

i), iii) and iv)

Only ii)

Both ii) and iv)

29/260

29.

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

$$a

$1a

$_a

30/260

30.

What will be the output of the following PHP code ?

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

error

no output

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

00000000000000000000....infinitely

31/260

31.

Which of the following functions returns current Unix timestamp?

localtime()

date()

strtotime()

time()

32/260

32.

42 with two decimal places?

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

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

33/260

33.

What is the output of the following?

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

34/260

34.

What is the output of the following PHP code?

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

FOO

200

100

35/260

35.

What will be the output of the following PHP code ?

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

error

no output

36/260

36.

What will be the output of the following PHP code ?

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

hihello

hello

infinite loop

error

37/260

37.

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 [Not Equal] and [Not Identical]

None of the above

Syntax error; this won't run

The arrays are [Not Equal] and [Identical]

The arrays are [Equal] and [Not Identical]

The arrays are [Equal] and [Identical]

38/260

38.

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

false true true

true false true

39/260

39.

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);
}

an error message related to an uncaught exception

Caught MyException: MyException

Caught MyException: ChildException

Caught Exception: ChildException

40/260

40.

What will be the output of the following code?

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

011

111

123

000

41/260

41.

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 mancI love manu

I love arsenal

I love arsenalI love manc

Error

42/260

42.

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

yes

43/260

43.

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

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

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

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

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

44/260

44.

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 )

45/260

45.

What would happen when the following code was run?

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

This tree is: tree (and a notice)

A notice

This tree is: oak (and a notice)

An error

This tree is: (and a notice)

46/260

46.

Who is the father of PHP?

Drek Kolkevi

List Barely

Rasmus Lerdorf

Willam Makepiece

47/260

47.

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 */
?>

is_leap($year default 2000)

function is_leap($year default 2000)

function is_leap($year = 2000)

function is_leap($year)

function is_leap(2000 = $year)

48/260

48.

What will be the output of the following PHP code ?

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

infinite loop

no output

-3-4

-3-4-5

49/260

49.

What will be the output of the following PHP code ?

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

infinite loop

no output

error

50/260

50.

What will be the output of the following PHP code ?

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

false

1true

true

error

51/260

51.

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). ',';
    }
?>

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

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

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

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

52/260

52.

What will be the output of the following PHP code?

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

Error

$var

53/260

53.

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

False

True

54/260

54.

Which version of PHP introduced Try/catch Exception?

PHP 5 and later

PHP 6

PHP 4

PHP 5

55/260

55.

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

None of the above; these are all fine

<?php

56/260

56.

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

57/260

57.

What does the following code snippet do?

$a = `ls -l`;

It will cause a warning message.

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.

58/260

58.

What will be the output of the following PHP code ?

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

IF:

ERROR

IF: 42

42: 42

59/260

59.

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();
}

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

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

Exception caught in A

None of the above

60/260

60.

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

Objects

Strings

Resources

Arrays

61/260

61.

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

62/260

62.

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";
}

986.962699801

1600

300

dhaka

63/260

63.

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

64/260

64.

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

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

$a[2]

$a[3]

$a[1]

$a[4]

$a[0]

65/260

65.

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

66/260

66.

You run the following PHP script:

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

What will be the output?

51 birds sit on trees.

51 birds sit on 0 trees.

51 birds sit on 22 trees.

51 birds sit on 18 trees.

67/260

67.

What will be the output of the following PHP code ?

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

how are u

error

no output

68/260

68.

You run the following PHP script:

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

What will be the output?

201

200

199

202

69/260

69.

You run the following PHP script:

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

What will be the output?

1235

It will throw a script error.

1235Jason

70/260

70.

What is the output of following code?

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

71/260

71.

What will be the output of the following PHP code ?

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

11111213

11121213

11111112

11111212

72/260

72.

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 8 times, hello 8 times

hello printed 8 times

Hi is printed once, hello 8 times

Hi is printed 8 times

73/260

73.

What will be the output of the following PHP code ?

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

error

true

false

74/260

74.

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);
}
?>

Loops infinitely.

Determines if they are both even or odd.

Determines the greatest common divisor between them.

Switches the values of $p and $q.

75/260

75.

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?

You didn’t optimize your code design properly.

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

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

76/260

76.

What will be the output of the following PHP code ?

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

red

error

nothing

red red

77/260

77.

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

to address, subject, body, extra headers

subject, to address, body, extra headers

subject, to address, extra headers, body

to address, subject, extra headers, body

78/260

78.

What will be the output of the following PHP code ?

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

infinite loop

79/260

79.

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?

12365

14345

-2177424000

80/260

80.

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";
}
?>

hello

Parse error

hihello

81/260

81.

What will be the output of the following PHP code ?

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

54321111111.....infinitely

555555555....infinitely

54321

82/260

82.

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

get_loaded_extensions

extension_loaded()

phpinfo()

get_extension_funcs()

83/260

83.

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 set and B is set

Syntax error

A is not set and B is set

A is not set and B is not set

84/260

84.

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

1 ^ 2

85/260

85.

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

<? .. ?>

<?= ... ?>

<% ... %>

<?php ... ?>

86/260

86.

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

NOT

XOR

AND

87/260

87.

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

88/260

88.

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

89/260

89.

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

90/260

90.

What is the output of the following line of code?

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

115

117

91/260

91.

How can we create a unique random password in PHP?

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

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

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

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

92/260

92.

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

93/260

93.

You run the following PHP script:

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

The script will throw an error.

94/260

94.

You run the following script:

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

What will be the output?

boolean

string

Script will through an error.

integer

95/260

95.

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

$a >>= 2;

$a += $a + $a;

$a <<= 2;

$a *= pow (2, 2);

96/260

96.

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

97/260

97.

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

Arrays

Classes

Objects

PECL

98/260

98.

What will this code output?

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

5.79

None of the above

99/260

99.

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++;
?>

368

869

742

error

100/260

100.

What will be the output of the following PHP code ?

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

infinite loop

1234567891011

123456789101112

12345678910

101/260

101.

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: 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

102/260

102.

Which of the following are valid identifiers (Choose 3)

function 4You() { }

function object() { }

function _4You() { }

$1 = "Hello";

$_1 = "Hello World";

103/260

103.

What will be the output of the following PHP code ?

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

80.5

104/260

104.

What will be the output of the following PHP code ?

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

true

false

105/260

105.

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";
?>

hello

no output

error

106/260

106.

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();
    }
?>

A switch statement without a default case

It is the only representation of this logic

A switch statement using a default case

A recursive function call

A while statement

107/260

107.

What will be the output of the following PHP code?

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

1234

Error

108/260

108.

You run the following script:

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

Script will output an error.

109/260

109.

What is the output of this script?

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

-1

apples

110/260

110.

What will be the output of the following PHP code ?

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

111/260

111.

What will be the output of the following PHP code ?

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

myObject::CONSTANT

no output

test

error

112/260

112.

What is the output of the following code?

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

343

342

279

113/260

113.

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.

114/260

114.

Consider the following PHP script:

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

What will be the output?

115/260

115.

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] => 5 [1] => 7 [2] => 9 )

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

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

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

116/260

116.

What will be the output of the following PHP code?

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

25 students

Error

35 students

117/260

117.

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

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

$string = $argv[1];

list($string) = func_get_args();

$string = get_function_args();

$string = $_ARGV[0];

118/260

118.

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

119/260

119.

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.";
    }
}
?>

False, False, True

True, True, False

False, True, True

True, True, True

False, True, False

120/260

120.

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?

!==

===

121/260

121.

What will be the output of the following PHP code ?

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

true0

true10

122/260

122.

What is the return value of echo statement in PHP?

none of these

no return value

123/260

123.

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
}

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

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

while($idx *= 2)

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

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

124/260

124.

You run the following script:

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

What will be the output?

125/260

125.

What will be the output of the following PHP code ?

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

__LINE__

PHP is a scripting language

ERROR

126/260

126.

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

127/260

127.

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

$_SESSION

$_COOKIE

$php_errormsg

$_SERVER['PHP_SELF']

128/260

128.

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: 50

The last value of the variable $i:

Script will throw an notice.

The last value of the variable $i: 49

129/260

129.

What will be the output of the following PHP code ?

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

one

onetwo

error

nothing

130/260

130.

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;
?>

242.0

342

256

128

131/260

131.

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?

132/260

132.

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 50 will be printed.

A series from 51 to 100 will be printed.

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

A series from 1 to 100 will be printed.

133/260

133.

Which of the following is NOT a strongly typed language?

C++

PHP

JAVA

134/260

134.

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

Initiate garbage collection to free up memory

There is no such function

Flush the opcode cache

Pause the script for a certain number of processor cycles

135/260

135.

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

My name is BobBob

My name is BobMy name is Bob

Error

136/260

136.

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

137/260

137.

What will be the output of the following PHP code ?

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

Hello World Hello World

Syntax Error

Hello <html> Hello world </html>

Hello world

138/260

138.

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 );
?>

Both are 3

a is 3 and b is 4

Both are 4

a is 4 and b is 3

139/260

139.

What will be the output of the following PHP code ?

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

how are u

0hi

0how are u

140/260

140.

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

no output

Undefined variable: GREETING

$GREETING

141/260

141.

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.

142/260

142.

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"; 
?>

0.75

0.05

1.25

Error

143/260

143.

What gets printed?

<?php

$RESULT = 11 + 011 + 0x11;

echo "$RESULT";

?>

144/260

144.

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 = 1 y = 2

x = 1 y = 1

x = 2 y = 1

x = 2 y = 3

x = 2 y = 2

145/260

145.

What will be the output of the following PHP code ?

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

Error

\red

$color

red

146/260

146.

What will be the output of the following PHP code ?

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

qwe$arty

qwe

error

qwe12345rty

147/260

147.

What will be the output of the following PHP code ?

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

no output

error

148/260

148.

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

For loop

Foreach loop

149/260

149.

Which of the following is used to set a constant?

define

con

set

new

150/260

150.

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

Concept of void functions exists in PHP.

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

Functions in PHP cannot return expressions by reference.

PHP can allow functions to return variables.

151/260

151.

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));
?>

!&-&

-&!

!&-!

-!&

-!!&

152/260

152.

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

PHP does not output anything.

PHP will start displaying the value of last object.

PHP will start displaying the value of current object.

none of these.

153/260

153.

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

testvalue

error, constant value cannot be changed

testtest

154/260

154.

What will be the output of the following code -

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

Error

250

200

300

155/260

155.

What is the output of this script?

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

-1

156/260

156.

Which statement will output $x on the screen?

echo "$x;";

echo "\$x";

echo "/$x";

echo "$$x";

157/260

157.

Which of the following is a magic constant?

__LINE__

$_GET

$_SERVER

$_POST

158/260

158.

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

< php >

<? ?>

<?php ?>

< ? php ?>

159/260

159.

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: Dog

Dog

The value is: Cat

The value is: Human

The value is: 10

160/260

160.

What will be the output of the following PHP code ?

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

error at line 3

no output

161/260

161.

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

162/260

162.

What will the output of this function be?

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

1,235

1.234,57

1,234.568

None of the above

163/260

163.

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

Require constructs can't be used with URL filenames'

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

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

There is no difference other than the name

164/260

164.

What will be the output of the following PHP code ?

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

hihi

hihihi

hihihihi

165/260

165.

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();
?>

manygoodthings

goodthingsgoodthings

goodthingsmanygoodthings

there is no output

manygoodthingsmanygoodthings

166/260

166.

What will be the output of the following PHP code ?

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

-1

infinite loop

167/260

167.

What will be the output of the following PHP code ?

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

no output

168/260

168.

What will be the output of the following PHP code ?

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

error

169/260

169.

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

===

!==

170/260

170.

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

128

512

171/260

171.

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.

172/260

172.

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?

154

130

173/260

173.

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

print() can be used in the CLI version of PHP, 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

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

174/260

174.

What is the output of:

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

10elephpant

1210elephpant

2110elephpant

175/260

175.

What is the output of the following code?

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

176/260

176.

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)

177/260

177.

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";
?>

Infinite loop

After for loop

In for loopAfter for loop

In for loop

178/260

178.

which one of these variables has illegal name?

$my_Var

$myVar

None of them

$my-Var

179/260

179.

What is the output of the following line of code:

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

180/260

180.

What will be the output of the following PHP code ?

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

134

1234

181/260

181.

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?

Jan-01-1995

Jan-01-1996

Date out of range error

Fatal error

182/260

182.

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

$_ARGV

$_POST

$_SERVER

$_ENV

$GLOBALS

183/260

183.

What will be the output of the following PHP code ?

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

184/260

184.

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), iii) and iv)

ii), iii) and iv)

i), ii) and iv)

Only i)

185/260

185.

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]); 
    }
?>

AshleyShrek

BaleBlank

AshleyBaleBlank

Bale

186/260

186.

What will be the output of the following PHP code ?

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

hihihihi

hihi

hihihi

187/260

187.

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 foreach loop

Using a while loop

Using a do...while loop

There is no way to accomplish this goal

Using a for loop

188/260

188.

What will be the output of the following PHP code ?


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

error

no output

1797568

0x6dc0

189/260

189.

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

$_FORMS

$_REQUEST

$_SERVER

$_COOKIES

$_ENVIRONMENT

$_GLOBAL

$_COOKIE

$_DATA

190/260

190.

You run the following PHP script:

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

What will be the output?

It will throw a script error.

Jason

1235

191/260

191.

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 49 random characters

A string of 49 'G' characters

A string of 50 random characters

Nothing, because $array is not an array

192/260

192.

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";
}
?>

result is 1

error

no output

result is true

193/260

193.

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()

Exception caught in A

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

None of the above

194/260

194.

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

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

When the parameter is being declared as passed by reference

When the function contains only one parameter

When the parameter is Boolean

195/260

195.

What will be the output of the following PHP code ?

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

no output

196/260

196.

What will this script output?

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

Hello

an error message because the variable b is not defined

Nothing; it won't run

Hello world

197/260

197.

What will be the output of the following PHP code ?

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

210

no output

infinite loop

198/260

198.

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?

199/260

199.

What will be the output of the following PHP code ?

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

This, was, a, bad, idea

Error

Thiswasabadidea

This was a bad idea

200/260

200.

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

require, include

All of the above are correct

include, require

require_once, include

include_once, include

201/260

201.

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

ii) and iv)

Only ii)

ii), iii) and iv)

Only iii)

202/260

202.

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

NULL

Strings

Booleans

Doubles

203/260

203.

What will be the output of the following PHP code ?

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

Hello+World

HelloWorld

Error

204/260

204.

What will be the output of the following PHP code?

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

Error

1.+.2

1+2

205/260

205.

What will be the output of the following PHP code ?

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

infinite loop

210

no output

206/260

206.

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

Byte code caching

Variable

Namespace

Constant

207/260

207.

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

It evaluates to true if the two operands are equivalent.

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 is an alias of strcmp() function.

208/260

208.

Which of the following is not valid PHP code?

$_10

$10_somethings

$aVaR

&$something

${"MyVar"}

209/260

209.

What will be the output of the following PHP code ?

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

Hello world

echo 'Hello world'

Error

echo Hello world

210/260

210.

What will be the output of the following PHP code ?

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

no output

Parse error

hihello

211/260

211.

What will be the output of the following PHP code ?

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

Thiswas a badidea

Thiswasbadidea

Thiswasabadidea

Thiswas abadidea

212/260

212.

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

8rutil

YU-8

R7yu

9tur8UH4

ablwesc_99

111

AEN

213/260

213.

Which of the below symbols is a newline character?

214/260

214.

Which of the following are valid PHP variables?

$0x0

&$variable

@$foo

${0x0}

215/260

215.

You run the following PHP script:

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

What will be the output?

-123

123

syntax error

216/260

216.

What will the code output?

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

An error will occur

217/260

217.

Which of the following is NOT a magic predefined constant?

__DATE__

__LINE__

__CLASS__

__FILE__

__METHOD__

218/260

218.

Which of the following operators has the highest precedence order?

[

219/260

219.

What will this script output?

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

foo

bar

None of the above

220/260

220.

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

221/260

221.

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*

foo:*1023

222/260

222.

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?

Script tag

Short tag

Standard tag

ASP tag

223/260

223.

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.

224/260

224.

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 hello

use myapp\utils\hello\world;

use utils\hello

225/260

225.

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

Class names

Function names

Namespaces

Variable names

226/260

226.

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;
}
?>

no output

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

0 1 2 3 4 5

infinite loop

227/260

227.

What will be the output of the following PHP code ?

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

01234

0123

012345

error

228/260

228.

What will be the output of the following PHP code ?

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

error

hellolength

229/260

229.

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.

230/260

230.

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

231/260

231.

What will be the output of the following PHP code ?

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

false

error

true

nothing

232/260

232.

You run the following PHP script:

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

-2

Script will show an error message.

-4

233/260

233.

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

global, script and function

script, function and class

global, function and class

class, global and script

234/260

234.

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

how are uhello

hihello

235/260

235.

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

<=>

236/260

236.

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 Tech

FastTechdefault

Fast

default

237/260

237.

What will be the output of the following PHP code ?

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

no output

238/260

238.

What will be the output of the following PHP code ?

<?php
print_r "Hello world"
?>

Parse Error

Missing semicolon error

Hello World

Nothing

239/260

239.

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

240/260

240.

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

PHP is a scripting language PHP is a scripting language

GREETING_TESt

PHP is a scripting language GREETING_TEST

241/260

241.

How to use header() function in PHP correctly?

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

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

header("Location: newpage.php");

None of these

242/260

242.

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

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

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

It bases its comparison on the C strcmp function exclusively

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

243/260

243.

What is the output of this script?

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

Syntax error; this won’t run

double

integer

boolean

244/260

244.

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

htmlelements

html_entities

htmlentities

html_elements

245/260

245.

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);
?>

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

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

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

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

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

246/260

246.

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

247/260

247.

What will be the output of the following PHP code ?

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

some

none

all

Parse error: syntax error

248/260

248.

Consider the following code:

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

What will be the value of x and y?

x=5, y=15

x=10, y=5

x=15, y=5

x=15, y=10

249/260

249.

What will be the output of the following PHP code ?

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

error

250/260

250.

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

251/260

251.

What will be the output of the following PHP code ?

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

12345678910....1920

12345678910....19

252/260

252.

What will be the output of the following PHP code ?

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

error

no output

hello

253/260

253.

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

Only ii)

Both ii) and iv)

Both i) and iii)

Both i) and ii)

254/260

254.

What will be the output of the following PHP code ?

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

error

true

false

no output

255/260

255.

What is the output of this script?

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

256/260

256.

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");
?>

true

The script will throw an error message.

false

true false

257/260

257.

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

$add = $add +$add

$add = $add + $add + 1

$add = $add

$add = $add + 1

258/260

258.

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

259/260

259.

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

foreach

while

for in

for

260/260

260.

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

$var

$_2var

$2var

$__var