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Viewing page 4 out of 8 pages
Viewing questions 31-40 out of questions
Questions # 31:

The constructs for(), foreach(), and each() can all be used to iterate an object if the object

Options:

A.

implements ArrayAccess

B.

implements Iterator

C.

implements Iterator and ArrayAccess

D.

None of the above

Questions # 32:

In the following code, which class can be instantiated?

1 <?php

2 abstract class Graphics {

3 abstract function draw($im, $col);

4 }

5

6 abstract class Point1 extends Graphics {

7 public $x, $y;

8 function __construct($x, $y) {

9 $this->x = $x;

10 $this->y = $y;

11 }

12 function draw($im, $col) {

13 ImageSetPixel($im, $this->x, $this->y, $col);

14 }

15 }

16

17 class Point2 extends Point1 { }

18

19 abstract class Point3 extends Point2 { }

20 ?>

Options:

A.

Graphics

B.

Point1

C.

Point2

D.

Point3

E.

None, the code is invalid

Questions # 33:

Which of the following statements is true?

Options:

A.

All PHP database extensions support prepared statements

B.

All PHP database extensions come with their own special helper functions to escape user data to be used in dynamic SQL queries

C.

All PHP database extensions provide an OOP interface

D.

All PHP database extensions appear in the output of php -m , if installed

Questions # 34:

When setting HTTP headers from PHP, how can you make sure that your application sends the same header twice, with different values?

Options:

A.

Set the second argument of the header() function to false

B.

PHP does that automatically

C.

One kind of header may only be sent once

D.

Use the header_add() function

Questions # 35:

Which of the following are valid identifiers (Choose 3)

Options:

A.

function 4You() { }

B.

function _4You() { }

C.

function object() { }

D.

$1 = "Hello";

E.

$_1 = "Hello World";

Questions # 36:

Which of the following statements is correct?

Options:

A.

Interfaces can extend only one interface

B.

Interfaces can extend more than one interface

C.

Interfaces can inherit a method from different interfaces

D.

Interfaces can redeclare inherited methods

Questions # 37:

Given the default PHP configuration, how can all of the parameters provided via GET be accessed in a form of a string?

Options:

A.

$_GET['ALL']

B.

$_SERVER['QUERY']

C.

$_SERVER['QUERY_STRING']

D.

$_ENV['QUERY']

E.

$QUERY_STRING

Questions # 38:

What is the output of the following code: echo "1" + 2 * "0x02";

Options:

A.

1

B.

3

C.

5

D.

20

E.

7

Questions # 39:

What tags can always be used to begin a PHP script? (Choose 2)

Options:

A.

<?php

B.

C.

<%

D.

<%php

E.

<script language="php">

Questions # 40:

What can prevent PHP from being able to open a file on the hard drive (Choose 3)?

Options:

A.

File system permissions

B.

File is outside of open_basedir

C.

File is owned by another user and safe_mode is enabled.

D.

File is inside the /tmp directory.

E.

PHP is running as the web server user.

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Viewing questions 31-40 out of questions
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