Zend Preparation | Online PHP Quiz

PHP Basics singleQuestion

1/260

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 = 2 y = 1

x = 1 y = 1

x = 2 y = 3

x = 1 y = 2

x = 2 y = 2

x = 1 y = 3

2/260

You run the following script:

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

Script will output an error.

3/260

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 )

4/260

What will be the output of the following PHP code ?

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

infinite loop

no output

error

5/260

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

1.25

Error

0.05

6/260

What will be the output of the following PHP code?

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

1.+.2

1+2

Error

7/260

What will this script output?

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

an error message because the variable b is not defined

Nothing; it won't run

Hello

Hello world

8/260

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

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

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

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

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

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

9/260

What will be the output of the following PHP code ?

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

no output

10/260

10.

What is the output of the following code?

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

11/260

11.

Which of the following is used to set a constant?

set

con

new

define

12/260

12.

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

FOO

200

13/260

13.

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?

default

Fast Tech

Fast

FastTechdefault

14/260

14.

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.

15/260

15.

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

class, global and script

global, script and function

script, function and class

global, function and class

16/260

16.

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

17/260

17.

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

18/260

18.

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

A is not set and B is not set

Syntax error

A is not set and B is set

19/260

19.

What will be the output of the following PHP code ?

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

infinite loop

error

no output

20/260

20.

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

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

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

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

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

21/260

21.

What is the output of the following line of code:

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

22/260

22.

What is the output of the following PHP code?

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

200

FOO

100

23/260

23.

What will be the output of the following PHP code ?

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

00000000000000000000....infinitely

error

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

no output

24/260

24.

42 with two decimal places?

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

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

25/260

25.

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

343

279

26/260

26.

What will be the output of the following PHP code ?

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

hihihi

hihi

hihihihi

27/260

27.

What will be the output of the following PHP code ?

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

true

false

28/260

28.

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.

29/260

29.

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

30/260

30.

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

Function names

Variable names

Class names

Namespaces

31/260

31.

What will this script output?

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

None of the above

foo

bar

32/260

32.

What will be the output of the following PHP code ?

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

no output

infinite loop

210

33/260

33.

What will be the output of the following PHP code ?

<?php
print_r "Hello world"
?>

Missing semicolon error

Hello World

Parse Error

Nothing

34/260

34.

How can a script come to a clean termination?

When the execution reaches the end of the current file

When Apache terminates because of a system problem

When exit() is called

When PHP crashes

35/260

35.

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

Strings

Doubles

Booleans

NULL

36/260

36.

What will be the output of the following PHP code ?

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

red

\red

$color

Error

37/260

37.

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

get_loaded_extensions

get_extension_funcs()

phpinfo()

extension_loaded()

38/260

38.

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

39/260

39.

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

<?php

None of the above; these are all fine

40/260

40.

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

$add = $add + $add + 1

$add = $add +$add

$add = $add + 1

$add = $add

41/260

41.

Which of the below symbols is a newline character?

42/260

42.

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

ii), iii) and iv)

Both ii) and iv)

Only ii)

i), iii) and iv)

43/260

43.

<?php
    class Foo
    {
?>

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

which is correct?

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

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.

44/260

44.

Which of the following is not valid PHP code?

$10_somethings

$aVaR

$_10

&$something

${"MyVar"}

45/260

45.

You run the following script:

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

What will be the output?

46/260

46.

What is the output of this script?

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

-1

47/260

47.

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

Objects

Strings

Arrays

Resources

48/260

48.

What is the output of the following line of code?

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

115

117

49/260

49.

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, False, True

False, True, False

True, True, True

False, True, True

50/260

50.

What is the output of the following?

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

51/260

51.

Which of the following data types are compound data types?

Objects

Array

Strings

Booleans

52/260

52.

Consider the following PHP script:

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

What will be the output?

53/260

53.

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

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

TRUE

123

NULL

FALSE

54/260

54.

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.

55/260

55.

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

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

it is the 8th day

Tuesday the 8th

January 8, 2013, 5:16 pm

01.08.13

56/260

56.

How to use header() function in PHP correctly?

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

header("Location: newpage.php");

None of these

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

57/260

57.

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

Fatal error

Date out of range error

Jan-01-1996

58/260

58.

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). ',';
    }
?>

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

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

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

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

59/260

59.

What will be the output of the following PHP code ?

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

error at line 3

no output

60/260

60.

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 4

Both are 3

a is 4 and b is 3

a is 3 and b is 4

61/260

61.

What is the output of:

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

1210elephpant

2110elephpant

10elephpant

62/260

62.

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
}

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

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

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

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

while($idx *= 2)

63/260

63.

You run the following PHP script:

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

The script will throw an error.

64/260

64.

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

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

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

65/260

65.

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

<=>

66/260

66.

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";
    }
?>

Error

I love arsenalI love manc

I love arsenal

I love arsenalI love mancI love manu

67/260

67.

You run the following PHP script:

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

What will be the output?

It will throw a script error.

1235Jason

1235

68/260

68.

What will be the output of the following PHP code ?

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

no output

hello

error

69/260

69.

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

$a <<= 2;

$a *= pow (2, 2);

$a += $a + $a;

$a >>= 2;

70/260

70.

What will be the output of the following PHP code ?

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

Thiswasbadidea

Thiswas a badidea

Thiswasabadidea

Thiswas abadidea

71/260

71.

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

72/260

72.

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

It implements ArrayAccess

It takes responsibility for instantiating objects

It uses static methods

It is designed to store values of various types

Only one instance of the class can exist

73/260

73.

What will be the output of the following PHP code ?

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

134

1234

74/260

74.

Which of the following is NOT a magic predefined constant?

__LINE__

__CLASS__

__DATE__

__METHOD__

__FILE__

75/260

75.

What will be the output of the following PHP code ?

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

76/260

76.

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

Both i) and ii)

Both i) and iii)

Only ii)

Both ii) and iv)

77/260

77.

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.

Embedded, Zend, HTML, XML

Dynamic, PHP, Database, HTML

Zend-based, PHP, Image, HTML

Perl-based, PHP, Web, Static

Embedded, Zend, Docbook, MySQL

78/260

78.

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, require

require, include

include_once, include

require_once, include

All of the above are correct

79/260

79.

You run the following PHP script:

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

What will be the output?

syntax error

-123

123

80/260

80.

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.

81/260

81.

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();
}

Exception caught in A

None of the above

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

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

82/260

82.

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

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

$a[4]

$a[0]

$a[3]

$a[1]

$a[2]

83/260

83.

Who is the father of PHP?

List Barely

Drek Kolkevi

Willam Makepiece

Rasmus Lerdorf

84/260

84.

What will be the output of the following PHP code ?

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

hellolength

error

85/260

85.

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

$_COOKIE

$php_errormsg

$_SERVER['PHP_SELF']

$_SESSION

86/260

86.

What will be the output of the following PHP code ?

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

80.5

87/260

87.

What will be the output of the following PHP code ?

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

error

88/260

88.

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

Infinite loop

In for loopAfter for loop

89/260

89.

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

ii), iii) and iv)

i), ii), iii) and iv)

i), ii) and iv)

Only i)

90/260

90.

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?

Script will throw an notice.

The last value of the variable $i:

The last value of the variable $i: 49

The last value of the variable $i: 50

91/260

91.

What is the output of this script?

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

apples

-1

92/260

92.

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 [Not Identical]

The arrays are [Equal] and [Identical]

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

Syntax error; this won't run

None of the above

The arrays are [Not Equal] and [Identical]

93/260

93.

How can we create a unique random password in PHP?

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

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

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

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

94/260

94.

Which of the following functions returns current Unix timestamp?

localtime()

date()

time()

strtotime()

95/260

95.

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

96/260

96.

What will this script output?

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

Hello world

Syntax error; this won’t run

bar

foo

97/260

97.

What will be the output of the following PHP code?

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

error

no output

how are u

98/260

98.

Which statement will output $x on the screen?

echo "$$x";

echo "/$x";

echo "\$x";

echo "$x;";

99/260

99.

What will be the output of the following PHP code ?

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

error

100/260

100.

What is the output of this script?

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

101/260

101.

Which of the following are valid identifiers (Choose 3)

$1 = "Hello";

function object() { }

function 4You() { }

$_1 = "Hello World";

function _4You() { }

102/260

102.

What will the output of this code be?

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

NULL

syntax error

Hello world!NULL

1NULL

103/260

103.

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

104/260

104.

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();
?>

goodthingsmanygoodthings

manygoodthings

goodthingsgoodthings

manygoodthingsmanygoodthings

there is no output

105/260

105.

Which of the following is a magic constant?

$_SERVER

$_POST

$_GET

__LINE__

106/260

106.

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

yes

107/260

107.

What is the output of this script?

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

Syntax error; this won’t run

double

boolean

integer

108/260

108.

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

foreach

for

for in

while

109/260

109.

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?

110/260

110.

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

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

$string = get_function_args();

$string = $argv[1];

list($string) = func_get_args();

$string = $_ARGV[0];

111/260

111.

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

true false

The script will throw an error message.

true

112/260

112.

What will be the output of the following PHP code ?

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

error, constant value cannot be changed

testtest

test

testvalue

113/260

113.

What will be the output of the following PHP code ?

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

error

true

false

114/260

114.

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); 
?>

false true true

true false true

true true false

true false false

115/260

115.

What will be the output of the following code?

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

Error

My name is BobMy name is Bob

My name is Bob Bob

My name is BobBob

116/260

116.

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] => 1 [1] => 2 [2] => 3 )

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

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

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

117/260

117.

You run the following PHP script:

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

What will be the output?

51 birds sit on 0 trees.

51 birds sit on trees.

51 birds sit on 22 trees.

51 birds sit on 18 trees.

118/260

118.

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

Namespace

Variable

Byte code caching

Constant

119/260

119.

Which of the following is NOT a strongly typed language?

PHP

JAVA

C++

120/260

120.

What will be the output of the following PHP code ?

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

error

true

false

1true

121/260

121.

What will be the output of the following PHP code ?

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

nothing

onetwo

one

error

122/260

122.

What will be the output of the following PHP code ?

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

infinite loop

hello

hihello

error

123/260

123.

What will be the output of the following PHP code ?

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

false

error

true

no output

124/260

124.

What will be the output of the following PHP code ?

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

test

error

no output

myObject::CONSTANT

125/260

125.

What will be the output of the following PHP code?

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

35 students

Error

25 students

126/260

126.

What will be the output of the following PHP code ?

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

Syntax Error

Hello world

Hello <html> Hello world </html>

Hello World Hello World

127/260

127.

What will be the output of the following PHP code ?

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

Error

HelloWorld

Hello+World

128/260

128.

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

128

256

242.0

129/260

129.

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";
}
?>

no output

error

result is true

result is 1

130/260

130.

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 50 random characters

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

A string of 49 'G' characters

A string of 49 random characters

Nothing, because $array is not an array

131/260

131.

What will be the output of the following code?

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

000

111

011

123

132/260

132.

What will be the output of the following PHP code ?

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

12345678910....1920

12345678910....19

133/260

133.

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

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

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

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

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

134/260

134.

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();
?>

0.01.0

No output

ERROR

135/260

135.

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

136/260

136.

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

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

It is an alias of strcmp() function.

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

It evaluates to true if the two operands are equivalent.

137/260

137.

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

138/260

138.

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

139/260

139.

Which of the following are valid PHP variables?

&$variable

@$foo

${0x0}

$0x0

140/260

140.

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)

This tree is: oak (and a notice)

A notice

An error

This tree is: (and a notice)

141/260

141.

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 for loop

Using a foreach loop

There is no way to accomplish this goal

Using a do...while loop

Using a while loop

142/260

142.

What will be the output of the following PHP code ?

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

143/260

143.

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

Standard tag

ASP tag

Script tag

144/260

144.

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

===

!==

145/260

145.

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 default 2000)

function is_leap(2000 = $year)

function is_leap($year)

function is_leap($year = 2000)

is_leap($year default 2000)

146/260

146.

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

subject, to address, body, extra headers

to address, subject, extra headers, body

to address, subject, body, extra headers

subject, to address, extra headers, body

147/260

147.

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

$GLOBALS

$_ARGV

$_POST

$_SERVER

$_ENV

148/260

148.

You run the following script:

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

What will be the output?

boolean

integer

Script will through an error.

string

149/260

149.

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

128

512

150/260

150.

What will be the output of the following PHP code ?

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

no output

error

151/260

151.

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 100 will be printed.

A series from 51 to 100 will be printed.

A series from 1 to 50 will be printed.

152/260

152.

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

PHP is a scripting language GREETING_TEST

GREETING_TESt

153/260

153.

What is the output from this script?

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

bool(false)

bool(true)

154/260

154.

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

$_DATA

$_REQUEST

$_SERVER

$_GLOBAL

$_ENVIRONMENT

$_COOKIES

$_FORMS

$_COOKIE

155/260

155.

What will be the output of the following PHP code ?

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

hihello

no output

Parse error

156/260

156.

Which version of PHP introduced Try/catch Exception?

PHP 5 and later

PHP 5

PHP 4

PHP 6

157/260

157.

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

1 ^ 2

158/260

158.

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

$__var

$_2var

$var

$2var

159/260

159.

You run the following PHP script:

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

What will be the output?

Script will show an error.

160/260

160.

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

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 be the output of the following PHP code ?

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

infinite loop

163/260

163.

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++;
?>

742

869

368

error

164/260

164.

What will be the output of the following PHP code ?

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

error

no output

165/260

165.

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

166/260

166.

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;
?>

167/260

167.

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

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

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

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

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

168/260

168.

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

169/260

169.

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

170/260

170.

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?

===

!==

171/260

171.

What gets printed?

<?php

$RESULT = 11 + 011 + 0x11;

echo "$RESULT";

?>

172/260

172.

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

173/260

173.

What is the return value of echo statement in PHP?

no return value

none of these

174/260

174.

What does the following code snippet do?

$a = `ls -l`;

It will cause a warning message.

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

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

It will cause an error.

175/260

175.

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

176/260

176.

What will be the output of the following PHP code ?

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

__LINE__

ERROR

PHP is a scripting language

177/260

177.

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

PHP can allow functions to return variables.

Functions in PHP cannot return expressions by reference.

Concept of void functions exists in PHP.

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

178/260

178.

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

179/260

179.

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]); 
    }
?>

AshleyBaleBlank

Bale

AshleyShrek

BaleBlank

180/260

180.

What will be the output of the following PHP code?

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

Error

1234

181/260

181.

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

182/260

182.

What will be the output of the following PHP code ?

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

1234567891011121314....infinitely

error

no output

01234567891011121314....infinitely

183/260

183.

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

ii), iii) and iv)

Only ii)

ii) and iv)

Only iii)

184/260

184.

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?

185/260

185.

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

ablwesc_99

8rutil

9tur8UH4

YU-8

111

R7yu

AEN

186/260

186.

What will be the output of the following PHP code ?

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

hello printed 8 times

Hi is printed 8 times, hello 8 times

Hi is printed 8 times

Hi is printed once, hello 8 times

187/260

187.

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

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

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

188/260

188.

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 function contains only one parameter

When the parameter is Boolean

When the parameter is being declared as passed by reference

189/260

189.

What will be the output of the following PHP code ?

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

infinite loop

-3-4-5

no output

-3-4

190/260

190.

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 you cannot use define() to declare an array constant.

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

191/260

191.

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

Flush the opcode cache

Pause the script for a certain number of processor cycles

Initiate garbage collection to free up memory

There is no such function

192/260

192.

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

Foreach loop

For loop

Do while loop

193/260

193.

The PHP syntax is most similar to:

JavaScript

VBScript

Perl and C

194/260

194.

What will be the output of the following PHP code ?

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

$GREETING

PHP is a scripting language

no output

Undefined variable: GREETING

195/260

195.

What will be the output of the following PHP code ?

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

196/260

196.

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 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

no output

infinite loop

197/260

197.

What will be the output of the following PHP code ?

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

true

false

error

nothing

198/260

198.

You run the following PHP script:

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

What will be the output?

199

202

201

200

199/260

199.

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 recursive function call

A switch statement without a default case

A switch statement using a default case

A while statement

It is the only representation of this logic

200/260

200.

What will be the output of the following PHP code ?

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

1234567891011

infinite loop

12345678910

123456789101112

201/260

201.

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

202/260

202.

What will be the output of the following PHP code ?

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

54321

555555555....infinitely

54321111111.....infinitely

203/260

203.

What will be the output of the following PHP code ?

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

no output

hello

error

204/260

204.

What will be the output of the following PHP code ?

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

error

one, two

one

onetwo

205/260

205.

What will be the output of the following PHP code ?

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

error

no output

how are u

206/260

206.

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:*1023

Foo

foo*

207/260

207.

What will be the output of the following PHP code ?

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

208/260

208.

What will the following script output?

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

null

209/260

209.

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

Parse error: syntax error

all

210/260

210.

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

NOT

XOR

AND

211/260

211.

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

643.75

432.75

643

432

212/260

212.

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?

Book Author

The script will throw an error.

Book Details

Missing Book

It will display all the three lines.

213/260

213.

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));
?>

-!&

!&-&

-!!&

!&-!

-&!

214/260

214.

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

Require constructs can't be used with URL filenames'

There is no difference other than the name

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

215/260

215.

What will be the output of the following PHP code ?


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

no output

1797568

error

0x6dc0

216/260

216.

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

Caught MyException: MyException

Caught MyException: ChildException

an error message related to an uncaught exception

217/260

217.

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

218/260

218.

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

$$a

$_a

$1a

219/260

219.

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";
}

Parse Error

One

Two

220/260

220.

What will be the output of the following PHP code ?

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

no output

221/260

221.

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

html_elements

htmlentities

html_entities

htmlelements

222/260

222.

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

223/260

223.

What will be the output of the following PHP code ?

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

true 22

true 33

true 32

no output

224/260

224.

What will be the output of the following PHP code ?

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

hihihihi

hihihi

hihi

225/260

225.

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";
}

1600

dhaka

986.962699801

300

226/260

226.

What will be the output of the following PHP code ?

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

IF:

IF: 42

ERROR

42: 42

227/260

227.

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()

None of the above

Exception caught in A

228/260

228.

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

<? ?>

< ? php ?>

<?php ?>

< php >

229/260

229.

What is the output of following code?

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

230/260

230.

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"); ?>

231/260

231.

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

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

bool(True)

bool(False)

232/260

232.

What will be the output of the following PHP code ?

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

echo Hello world

Error

Hello world

echo 'Hello world'

233/260

233.

What will be the output of the following PHP code ?

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

no output

234/260

234.

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.

Determines if they are both even or odd.

Loops infinitely.

235/260

235.

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: Human

The value is: Cat

The value is: 10

Dog

The value is: Dog

236/260

236.

Which of the following operators has the highest precedence order?

[

237/260

237.

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

PHP will start displaying the value of current object.

PHP does not output anything.

PHP will start displaying the value of last object.

none of these.

238/260

238.

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

Objects

PECL

Arrays

Classes

239/260

239.

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

240/260

240.

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;
?>

120

140

Syntax Error

241/260

241.

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

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

242/260

242.

What will be the output of the following PHP code ?

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

11111112

11111212

11111213

11121213

243/260

243.

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

244/260

244.

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";
?>

error

hello

no output

245/260

245.

What will be the output of the following PHP code ?

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

error

nothing

red red

red

246/260

246.

What will be the output of the following PHP code ?

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

This, was, a, bad, idea

Thiswasabadidea

This was a bad idea

Error

247/260

247.

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 hello

use mayapp\utils\hello

use utils\hello

use myapp\utils\hello\world;

248/260

248.

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

249/260

249.

You run the following PHP script:

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

-4

-2

Script will show an error message.

250/260

250.

You run the following PHP script:

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

What will be the output?

1235

It will throw a script error.

Jason

251/260

251.

What will be the output of the following PHP code ?

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

error

how are u

252/260

252.

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

253/260

253.

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?

-2177424000

12365

14345

254/260

254.

which one of these variables has illegal name?

$my_Var

None of them

$my-Var

$myVar

255/260

255.

What will the code output?

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

An error will occur

256/260

256.

What will be the output of the following PHP code ?

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

qwe12345rty

error

qwe

qwe$arty

257/260

257.

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=10

x=15, y=5

x=5, y=15

x=10, y=5

258/260

258.

What will be the output of the following PHP code ?

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

hello

error

no output

259/260

259.

What will be the output of the following PHP code?

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

Error

$var

260/260

260.

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

<?= ... ?>

<? .. ?>

<?php ... ?>

<% ... %>