Zend Preparation | Online PHP Quiz

PHP Basics singleQuestion_answer

1/260

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

2/260

What will be the output of the following PHP code ?

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

3/260

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] => 3 [1] => 4 [2] => 8 )

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

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

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

4/260

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

$$a

$_a

$1a

5/260

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

PHP can allow functions to return variables.

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

Concept of void functions exists in PHP.

Functions in PHP cannot return expressions by reference.

6/260

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.

7/260

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 BobBob

My name is BobMy name is Bob

My name is Bob Bob

Error

8/260

What will be the output of the following PHP code ?

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

0how are u

0hi

how are u

9/260

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

<=>

10/260

10.

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

11/260

11.

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 'G' characters

Nothing, because $array is not an array

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

A string of 49 random characters

12/260

12.

You run the following script:

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

Script will output an error.

13/260

13.

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

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

TRUE

123

NULL

FALSE

14/260

14.

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

For loop

Do while loop

Foreach loop

15/260

15.

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

16/260

16.

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);

643

643.75

257

432.75

432

17/260

17.

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

ii) and iv)

Only iii)

Only ii)

ii), iii) and iv)

18/260

18.

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.

19/260

19.

What will be the output of the following PHP code ?

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

hihello

how are uhello

no output

20/260

20.

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

NULL

Strings

Booleans

Doubles

21/260

21.

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: 10

Dog

The value is: Human

The value is: Dog

The value is: Cat

22/260

22.

What gets printed?

<?php

$RESULT = 11 + 011 + 0x11;

echo "$RESULT";

?>

23/260

23.

What will be the output of the following PHP code ?


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

869

742

error

368

24/260

24.

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) and iv)

i), ii), iii) and iv)

Only i)

25/260

25.

What will be the output of the following PHP code ?

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

26/260

26.

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

GREETING_TESt

PHP is a scripting language

27/260

27.

What will be the output of the following PHP code?

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

1.+.2

Error

1+2

28/260

28.

What will be the output of the following PHP code ?

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

one, two

one

error

onetwo

29/260

29.

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.

30/260

30.

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

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

$a[3]

$a[4]

$a[1]

$a[2]

$a[0]

31/260

31.

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

Hi is printed 8 times, hello 8 times

hello printed 8 times

Hi is printed once, hello 8 times

32/260

32.

You run the following PHP script:

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

What will be the output?

Script will show an error.

33/260

33.

How to use header() function in PHP correctly?

header("Location: newpage.php");

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

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

None of these

34/260

34.

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 while loop

Using a for loop

There is no way to accomplish this goal

Using a do...while loop

Using a foreach loop

35/260

35.

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

36/260

36.

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 = 2

x = 2 y = 2

x = 1 y = 3

x = 2 y = 3

x = 1 y = 1

37/260

37.

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

38/260

38.

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

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

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

Require constructs can't be used with URL filenames'

There is no difference other than the name

39/260

39.

What will be the output of the following PHP code ?

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

1234567891011

123456789101112

12345678910

infinite loop

40/260

40.

Which statement will output $x on the screen?

echo "$$x";

echo "\$x";

echo "/$x";

echo "$x;";

41/260

41.

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

Bale

BaleBlank

AshleyBaleBlank

42/260

42.

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

43/260

43.

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

Variable

Constant

Byte code caching

Namespace

44/260

44.

What will be the output of the following code -

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

Error

200

250

300

45/260

45.

What will be the output of the following PHP code ?

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

1234567891011121314....infinitely

error

01234567891011121314....infinitely

no output

46/260

46.

The PHP syntax is most similar to:

JavaScript

Perl and C

VBScript

47/260

47.

What will be the output of the following PHP code ?

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

error

hellolength

48/260

48.

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-01-1996

Date out of range error

Jan-01-1995

Fatal error

49/260

49.

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

hihello

Parse error

50/260

50.

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:*1023

foo*

*foo

Foo

51/260

51.

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.

52/260

52.

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

while

for

foreach

for in

53/260

53.

What will be the output of the following PHP code ?

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

error

54/260

54.

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, Docbook, MySQL

Dynamic, PHP, Database, HTML

Embedded, Zend, HTML, XML

Perl-based, PHP, Web, Static

Zend-based, PHP, Image, HTML

55/260

55.

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

56/260

56.

What is the output of the following code snippet?

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

120

140

Syntax Error

57/260

57.

What will be the output of the following PHP code ?

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

58/260

58.

What will be the output of the following PHP code ?

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

no output

59/260

59.

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 true false

true false false

true false true

false true true

60/260

60.

What will be the output of the following PHP code ?

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

12345678910....19

12345678910....1920

61/260

61.

What will be the output of the following PHP code ?

<?php
print_r "Hello world"
?>

Nothing

Parse Error

Missing semicolon error

Hello World

62/260

62.

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));
?>

-!!&

-!&

!&-&

!&-!

-&!

63/260

63.

What is the output of this script?

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

double

integer

Syntax error; this won’t run

boolean

64/260

64.

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

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

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

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

65/260

65.

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

Both ii) and iv)

Both i) and ii)

Only ii)

Both i) and iii)

66/260

66.

What will be the output of the following PHP code ?

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

no output

error at line 3

67/260

67.

What will the following script output?

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

null

68/260

68.

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 mancI love manu

I love arsenal

I love arsenalI love manc

69/260

69.

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 set

Syntax error

A is not set and B is not set

70/260

70.

You run the following script:

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

What will be the output?

71/260

71.

What will be the output of the following PHP code ?

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

1true

true

false

error

72/260

72.

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

<% ... %>

<? .. ?>

<?= ... ?>

<?php ... ?>

73/260

73.

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

error, constant value cannot be changed

testvalue

testtest

74/260

74.

What will be the output of the following PHP code ?

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

hello

error

no output

75/260

75.

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

PHP does not output anything.

none of these.

PHP will start displaying the value of current object.

PHP will start displaying the value of last object.

76/260

76.

What will be the output of the following PHP code ?

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

Hello <html> Hello world </html>

Hello world

Syntax Error

Hello World Hello World

77/260

77.

What will be the output of the following PHP code ?

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

80.5

78/260

78.

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

0.05

Error

79/260

79.

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

80/260

80.

What will be the output of the following PHP code ?

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

0 1 2 3 4 5

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

infinite loop

81/260

81.

What is the output of the following code?

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

manygoodthingsmanygoodthings

goodthingsmanygoodthings

manygoodthings

there is no output

goodthingsgoodthings

82/260

82.

42 with two decimal places?

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

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

83/260

83.

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 b()

Exception caught in A

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

None of the above

84/260

84.

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)

85/260

85.

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.

86/260

86.

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

It is an alias of strcmp() function.

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

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.

87/260

87.

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

It bases its comparison on the C strcmp function exclusively

88/260

88.

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.

Determines if they are both even or odd.

Loops infinitely.

Switches the values of $p and $q.

89/260

89.

What will be the output of the following PHP code ?

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

no output

error

90/260

90.

What will be the output of the following PHP code ?

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

qwe

qwe12345rty

error

qwe$arty

91/260

91.

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

default

FastTechdefault

Fast Tech

92/260

92.

Which of the following operators has the highest precedence order?

[

93/260

93.

What is the return value of echo statement in PHP?

no return value

none of these

94/260

94.

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

95/260

95.

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

96/260

96.

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

97/260

97.

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

98/260

98.

Which of the following functions returns current Unix timestamp?

localtime()

strtotime()

date()

time()

99/260

99.

What will be the output of the following PHP code ?

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

false

true

100/260

100.

What will be the output of the following PHP code ?

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

hihi

hihihihi

hihihi

101/260

101.

Which of the below symbols is a newline character?

102/260

102.

What will be the output of the following PHP code ?

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

0123

012345

01234

error

103/260

103.

What will the code output?

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

An error will occur

104/260

104.

What will be the output of the following PHP code ?

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

555555555....infinitely

54321

54321111111.....infinitely

105/260

105.

Which of the following are valid identifiers (Choose 3)

$_1 = "Hello World";

function object() { }

function _4You() { }

$1 = "Hello";

function 4You() { }

106/260

106.

What is the output of following code?

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

107/260

107.

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

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

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

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

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

108/260

108.

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

Strings

Arrays

Objects

Resources

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 will be the output of the following PHP code ?

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

error

no output

hello

111/260

111.

What will be the output of the following PHP code ?

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

IF:

ERROR

42: 42

IF: 42

112/260

112.

What will this code output?

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

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

This produces an error; functions and closures cannot be namespaced

113/260

113.

Which of the following is a magic constant?

$_GET

__LINE__

$_POST

$_SERVER

114/260

114.

What will be the output of the following PHP code ?

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

infinite loop

115/260

115.

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

< php >

<? ?>

<?php ?>

< ? php ?>

116/260

116.

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

117/260

117.

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";
?>

In for loop

Infinite loop

After for loop

In for loopAfter for loop

118/260

118.

What is the output of the following?

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

119/260

119.

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

986.962699801

300

dhaka

120/260

120.

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

Objects

Arrays

Classes

PECL

121/260

121.

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

122/260

122.

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

Initiate garbage collection to free up memory

Pause the script for a certain number of processor cycles

Flush the opcode cache

There is no such function

123/260

123.

What will be the output of the following PHP code ?

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

error

no output

false

true

124/260

124.

What will this script output?

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

Nothing; it won't run

Hello world

Hello

an error message because the variable b is not defined

125/260

125.

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

126/260

126.

What will be the output of the following PHP code ?

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

no output

127/260

127.

What will be the output of the following PHP code ?

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

red

$color

Error

\red

128/260

128.

Which of the following are valid PHP variables?

&$variable

$0x0

${0x0}

@$foo

129/260

129.

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, True, False

True, True, False

False, False, True

True, True, True

False, True, True

130/260

130.

What will be the output of the following PHP code ?

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

true20

true0

131/260

131.

What will be the output of the following PHP code ?

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

error

hello

no output

132/260

132.

What is the output of the following PHP code?

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

FOO

100

200

133/260

133.

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 [Identical]

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

None of the above

The arrays are [Equal] and [Not Identical]

The arrays are [Equal] and [Identical]

Syntax error; this won't run

134/260

134.

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

When the parameter is being declared as passed by reference

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

When the parameter is Boolean

When the function contains only one parameter

135/260

135.

What will be the output of the following PHP code ?

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

red

nothing

red red

error

136/260

136.

You run the following PHP script:

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

What will be the output?

1235

It will throw a script error.

Jason

137/260

137.

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 }

138/260

138.

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

include_once, include

All of the above are correct

require_once, include

require, include

139/260

139.

What is the output of the following line of code?

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

115

117

140/260

140.

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()

None of the above

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

Exception caught in A

141/260

141.

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

142/260

142.

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

htmlelements

html_elements

htmlentities

html_entities

143/260

143.

What will be the output of the following PHP code ?

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

no output

00000000000000000000....infinitely

error

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

144/260

144.

What will be the output of the following PHP code ?

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

infinite loop

error

no output

145/260

145.

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

$a >>= 2;

$a <<= 2;

$a *= pow (2, 2);

$a += $a + $a;

146/260

146.

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

147/260

147.

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

1 ^ 2

148/260

148.

Which of the following data types are compound data types?

Objects

Strings

Booleans

Array

149/260

149.

What will be the output of the following PHP code?

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

Error

1234

150/260

150.

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

!==

===

151/260

151.

What will be the output of the following PHP code ?

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

Thiswas abadidea

Thiswasabadidea

Thiswasbadidea

Thiswas a badidea

152/260

152.

What will the output of this function be?

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

1,235

None of the above

1,234.568

1.234,57

153/260

153.

What will be the output of the following PHP code ?

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

error

nothing

false

true

154/260

154.

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 18 trees.

51 birds sit on trees.

51 birds sit on 22 trees.

155/260

155.

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?

!==

===

156/260

156.

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.

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.

157/260

157.

What will be the output of the following PHP code ?

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

1234

134

158/260

158.

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

14345

12365

159/260

159.

What will be the output of the following PHP code?

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

error

how are u

no output

160/260

160.

What will the output of this code be?

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

syntax error

NULL

1NULL

Hello world!NULL

161/260

161.

What will be the output of the following PHP code ?

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

onetwo

nothing

error

one

162/260

162.

Which of the following is used to set a constant?

new

set

define

con

163/260

163.

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

164/260

164.

Which version of PHP introduced Try/catch Exception?

PHP 4

PHP 6

PHP 5

PHP 5 and later

165/260

165.

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 while statement

A switch statement using a default case

A switch statement without a default case

It is the only representation of this logic

166/260

166.

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

Variable names

Namespaces

Function names

Class names

167/260

167.

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

9tur8UH4

ablwesc_99

AEN

111

YU-8

R7yu

8rutil

168/260

168.

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

$_POST

$_ARGV

$GLOBALS

$_ENV

$_SERVER

169/260

169.

What will be the output of the following PHP code ?

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

Hello world

echo 'Hello world'

echo Hello world

Error

170/260

170.

What will be the output of the following PHP code ?

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

error

no output

171/260

171.

What is the output of the following code?

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

342

279

343

172/260

172.

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 *= 2)

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

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

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

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

173/260

173.

What is the output of this script?

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

174/260

174.

<?php
    class Foo
    {
?>

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

which is correct?

will work, class definitions can be split up into

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

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

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

175/260

175.

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

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

$string = $argv[1];

$string = get_function_args();

$string = $_ARGV[0];

list($string) = func_get_args();

176/260

176.

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: 49

The last value of the variable $i:

The last value of the variable $i: 50

177/260

177.

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

$_SERVER['PHP_SELF']

$php_errormsg

$_SESSION

$_COOKIE

178/260

178.

What will be the output of the following PHP code ?

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

HelloWorld

Hello+World

Error

179/260

179.

What will be the output of the following PHP code ?

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

11111212

11121213

11111213

11111112

180/260

180.

You run the following PHP script:

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

What will be the output?

201

199

202

200

181/260

181.

Which of the following is NOT a strongly typed language?

PHP

C++

JAVA

182/260

182.

What will be the output of the following PHP code ?

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

true 32

true 33

true 22

no output

183/260

183.

What will be the output of the following PHP code ?


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

1797568

no output

error

0x6dc0

184/260

184.

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

get_extension_funcs()

phpinfo()

get_loaded_extensions

extension_loaded()

185/260

185.

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

186/260

186.

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

187/260

187.

What will be the output of the following PHP code ?

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

hihello

no output

Parse error

188/260

188.

What is the output of:

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

2110elephpant

10elephpant

1210elephpant

189/260

189.

You run the following script:

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

What will be the output?

Script will through an error.

boolean

string

integer

190/260

190.

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 false

true

The script will throw an error message.

false

191/260

191.

What will be the output of the following PHP code ?

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

192/260

192.

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 MyException: MyException

Caught Exception: ChildException

an error message related to an uncaught exception

Caught MyException: ChildException

193/260

193.

Which of the following is not valid PHP code?

${"MyVar"}

$_10

$10_somethings

$aVaR

&$something

194/260

194.

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

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

195/260

195.

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.

196/260

196.

What will be the output of the following PHP code ?

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

error

true

false

197/260

197.

What will be the output of the following PHP code ?

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

all

Parse error: syntax error

some

none

198/260

198.

What will be the output of the following PHP code ?

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

hihihi

hihi

hihihihi

199/260

199.

What is the output of the following code?

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

200/260

200.

What will be the output of the following PHP code ?

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

error

201/260

201.

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

202/260

202.

What will be the output of the following PHP code ?

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

This, was, a, bad, idea

Thiswasabadidea

Error

This was a bad idea

203/260

203.

You run the following PHP script:

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

The script will throw an error.

204/260

204.

What is the output of the following line of code:

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

205/260

205.

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)

206/260

206.

How can we create a unique random password in PHP?

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

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

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

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

207/260

207.

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

hihello

hello

208/260

208.

What will be the output of the following PHP code ?

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

error

no output

result is true

result is 1

209/260

209.

What will be the output of the following PHP code ?

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

Fatal error

no output

210/260

210.

which one of these variables has illegal name?

None of them

$my-Var

$my_Var

$myVar

211/260

211.

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?

Standard tag

Short tag

ASP tag

Script tag

212/260

212.

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

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

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

213/260

213.

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

Only ii)

ii), iii) and iv)

Both ii) and iv)

i), iii) and iv)

214/260

214.

What is the output of this script?

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

apples

-1

215/260

215.

What will be the output of the following PHP code ?

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

no output

hello

error

216/260

216.

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

217/260

217.

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.

218/260

218.

Who is the father of PHP?

Willam Makepiece

Rasmus Lerdorf

List Barely

Drek Kolkevi

219/260

219.

What would happen when the following code was run?

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

An error

This tree is: oak (and a notice)

This tree is: (and a notice)

A notice

This tree is: tree (and a notice)

220/260

220.

What is the output of this script?

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

-1

221/260

221.

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;
?>

128

342

256

242.0

222/260

222.

What will be the output of the following PHP code ?

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

no output

223/260

223.

Which of the following is NOT a magic predefined constant?

__LINE__

__FILE__

__CLASS__

__METHOD__

__DATE__

224/260

224.

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

225/260

225.

What will this script output?

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

foo

bar

None of the above

226/260

226.

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

It is designed to store values of various types

Only one instance of the class can exist

It takes responsibility for instantiating objects

It uses static methods

It implements ArrayAccess

227/260

227.

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

228/260

228.

You run the following PHP script:

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

What will be the output?

123

syntax error

-123

229/260

229.

What will be the output of the following PHP code ?

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

no output

Undefined variable: GREETING

$GREETING

PHP is a scripting language

230/260

230.

Consider the following PHP script:

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

What will be the output?

231/260

231.

What will be the output of the following PHP code ?

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

no output

test

myObject::CONSTANT

error

232/260

232.

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;
?>

233/260

233.

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

$_DATA

$_COOKIE

$_SERVER

$_ENVIRONMENT

$_COOKIES

$_REQUEST

$_GLOBAL

$_FORMS

234/260

234.

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

128

512

235/260

235.

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?

236/260

236.

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

yes

237/260

237.

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

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

a is 4 and b is 3

Both are 4

a is 3 and b is 4

Both are 3

238/260

238.

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

$__var

$2var

$_2var

$var

239/260

239.

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

$add = $add

$add = $add +$add

$add = $add + $add + 1

$add = $add + 1

240/260

240.

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

<?php

None of the above; these are all fine

241/260

241.

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.

242/260

242.

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

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

243/260

243.

What will be the output of the following PHP code ?

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

error

no output

infinite loop

244/260

244.

What will be the output of the following PHP code?

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

$var

Error

245/260

245.

You run the following PHP script:

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

What will be the output?

It will throw a script error.

1235

1235Jason

246/260

246.

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

to address, subject, extra headers, body

subject, to address, extra headers, body

subject, to address, body, extra headers

to address, subject, body, extra headers

247/260

247.

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 = 2000)

function is_leap($year)

is_leap($year default 2000)

function is_leap(2000 = $year)

function is_leap($year default 2000)

248/260

248.

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"); ?>

249/260

249.

What will be the output of the following PHP code ?

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

error

hello

infinite loop

hihello

250/260

250.

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

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

Tuesday the 8th

01.08.13

January 8, 2013, 5:16 pm

it is the 8th day

251/260

251.

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);
?>

200

354

The script will throw an error message

252/260

252.

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";
?>

how are u

error

no output

253/260

253.

What will be the output of the following code?

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

123

011

111

000

254/260

254.

What will this script output?

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

bar

Syntax error; this won’t run

foo

Hello world

255/260

255.

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

256/260

256.

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 myapp\utils\hello\world;

use mayapp\utils\hello

use utils\hello

use hello

257/260

257.

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

NOT

XOR

AND

258/260

258.

How can a script come to a clean termination?

When exit() is called

When the execution reaches the end of the current file

When PHP crashes

When Apache terminates because of a system problem

259/260

259.

You run the following PHP script:

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

-2

Script will show an error message.

-4

260/260

260.

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

The 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.

You didn’t optimize your code design properly.