Zend Zend Certifications 200-550 Questions & Answers

• Question 151:

  An HTML form has two submit buttons. After submitting the form, how can you determine with PHP which button was clicked?

  A. An HTML form may only have one button.

  B. You cannot determine this with PHP only. You must use JavaScript to add a value to the URL depending on which button has been clicked.

  C. Put the two buttons in different forms, but make sure they have the same name.

  D. Assign name and value attributes to each button and use $_GET or $_POST to find out which button has been clicked.

  Correct Answer: D

• Question 152:

  How can you determine whether a PHP script has already sent cookies to the client?

  A. Use $_COOKIE

  B. Use the getcookie() function

  C. Use the headers_sent() function

  D. Use JavaScript to send a second HTTP request

  Correct Answer: C

• Question 153:

  Before the headers are sent, how can you remove a previously set header?

  A. Use the header_remove() function, providing the name of the header

  B. Use the die() function to abort the PHP script

  C. Not possible

  D. Use the headers_list() function, providing the name of the header as the second argument

  Correct Answer: A

• Question 154:

  Which of the following can NOT be used to send a cookie from within a PHP application?

  A. header()

  B. $_COOKIE

  C. setcookie()

  D. setrawcookie()

  Correct Answer: B

• Question 155:

  Under what condition may HTTP headers be set from PHP if there is content echoed prior to the header function being used?

  A. headers_sent() returns true

  B. Output buffering is enabled

  C. The client supports local buffering

  D. The webserver uses preemptive mode

  Correct Answer: B

• Question 156:

  Which class of HTTP status codes is used for server error conditions?

  A. 2XX

  B. 3XX

  C. 4XX

  D. 5XX

  Correct Answer: D

• Question 157:

  Which class of HTTP status codes is used for redirections?

  A. 2XX

  B. 3XX

  C. 4XX

  D. 5XX

  Correct Answer: B

• Question 158:

  What content-type is required when sending an HTTP POST using JavaScript to ensure that PHP can access the data?

  A. application/x-www-form-urlencoded

  B. http/post

  C. text/html

  D. object/multipart-formdata

  Correct Answer: A

• Question 159:

  From your PHP application, how can you send the same header twice, but with different values?

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

  B. PHP does that automatically

  C. You may only send a particular type of header once

  D. Use the header_add() function

  Correct Answer: A

• Question 160:

  What is the output of the following code?

  $text = 'This is text';

  $text1 = <<<'TEXT'

  $text

  TEXT;

  $text2 = <<

  $text1

  TEXT; echo "$text2";

  A. This is text

  B. $text

  C. $text1

  D. $text2

  Correct Answer: B