200-530 Sample Questions Answers

guarantee high performance

secure data consistency

secure access to the database

reduce the database server overhead

reduce code size in PHP

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

PHP does that automatically

One kind of header may only be sent once

Use the header_add() function

SimpleXML allows removal of attributes.

SimpleXML allows addition of new attributes.

SimpleXML allows removal of nodes.

SimpleXML allows addition of new nodes.

None of the above

parse_url()

url_parse()

get_url_parts()

geturlparts()

xpathQuery()

xpath()

simpleXMLXpath()

query()

evaluate()

Parse error

3.14

PI

T::PI

Class

Abstract

Interface

Final

1)

2)

3)

4)

5)

6)

header('Location: /another_page.php');

header('Content-Location: /another_page.php');

header('Redirect: /another_page.php');

header('Redirect: /another_page.php', 1, 302);

header('HTTP/1.1 302 /another_page.php');

It is possible to specify more than one __autoload function

__autoload receives the missing class name all lowercased

__autoload is being called for missing interfaces

Inside __autoload missing classes trigger __autoload

Run one as an Apache module, the other as a CGI binary.

Run both as a CGI binary.

Just use .php4 for PHP 4, and .php for PHP 5.

Use .php for both but use different document roots.

ob_start()

set_write_buffer()

stream_set_write_buffer()

Change the output_buffering INI setting via ini_set() function

22

22.00

022.000000

22.000000

Autoload()

__autoload()

__catch()

Load()

loadClass()

Same as single-quotes, used to enclose strings.

Escape operators.

No special meaning.

Execute the enclosed string as a command.

Error control operators.

Add indices on joined columns

Add a WHERE clause

Add a LIMIT clause

Use an inner join

Check with is_uploaded_file() whether the uploaded file $_FILES['myFile']['tmp_name'] is valid

Sanitize the file name in $_FILES['myFile']['name'] because this value is not consistent among web browsers

Check the charset encoding of the HTTP request to see whether it matches the encoding of the uploaded file

Sanitize the file name in $_FILES['myFile']['name'] because this value could be forged

Use $HTTP_POST_FILES instead of $_FILES to maintain upwards compatibility

bang bong bung

bang bonged bung

big bang bong bung

big bang bung

array_flip()

array_reverse()

rsort()

krsort()

array_multisort()

Strip all occurrences of the string $lt; script.

Strip all occurrences of the string javascript.

Enable magic_quotes_gpc .

None of the above.

false-false

false-true

true-false

true-true

Remote Code Injection

Cross-Site Request Forgeries

Email Injection

None of the above

Cookie Data

Session Data

Remote IP Address

User Agent

The filename of the current script.

The full path to the current script.

The URL of the request made.

The path to the main script.

Using 'var' as an access modifier.

Assigning a new object instance to $this in a constructor.

Passing an object by-reference.

Passing an object by-value.

zceappend

prependzceappend

prependzce

zce

1

3

2

4

Set the session.duration directive in php.ini

Set session cookie expiry date locally via session_set_cookie_params()

Set session expiry date locally via session_cache_expire()

None of the above

bar element with an id attribute whose value is equal to 5

foo element containing a child node bar tag

id attribute whose value is equal to 5

foo element with a child note bar whose id attribute is equal to 5

all of the foo elements that have a child node bar, whose id attribute is equal to 5

42

43

Parse error

$_SERVER

$_ENV

$_POST

$_FILES

$_GET

Yes

No

All data is immediately transmitted to PHP

All data will be transmitted on-demand to PHP

None of the above

The name of the cookie.

The expiration time of the cookie.

The value of the cookie.

The IP address of the cookie's client.