Zend Zend Certified 200-550 Questions & Answers

• Question 31:

  What is the length of a string returned by: md5(rand(), TRUE);

  A. Depends on the value returned by rand() function

  B. 32

  C. 24

  D. 16

  E. 64

  Correct Answer: D

• Question 32:

  What is the return value of the following code?

  strpos("me myself and I", "m", 2)

  A. 2

  B. 3

  C. 4

  D. 0

  E. 1

  Correct Answer: B

• Question 33:

  What is the return value of the following code: substr_compare("foobar", "bar", 3);

  A. -1

  B. 1

  C. TRUE

  D. 0

  E. FALSE

  Correct Answer: D

• Question 34:

  How many elements does the array $matches from the following code contain?

  $str = "The cat sat on the roof of their house.";

  $matches = preg_split("/(the)/i", $str, -1, PREG_SPLIT_DELIM_CAPTURE);

  A. 2

  B. 3

  C. 4

  D. 7

  E. 9

  Correct Answer: D

• Question 35:

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

  A. $_GET['ALL']

  B. $_SERVER['QUERY']

  C. $_SERVER['QUERY_STRING']

  D. $_ENV['QUERY']

  E. $QUERY_STRING

  Correct Answer: C

• Question 36:

  How many elements does the $matches array contain after the following function call is performed? preg_match('/^(\d{1,2}([a-z]+))(?:\s*)\S+ (?=201[0-9])/', '21st March 2014', $matches);

  A. 1

  B. 2

  C. 3

  D. 4

  Correct Answer: C

• Question 37:

  You need to escape special characters to use user input inside a regular expression. Which functions would you use? (Choose 2)

  A. addslashes()

  B. htmlentities()

  C. preg_quote()

  D. regex_quote()

  E. quote_meta()

  Correct Answer: CE

• Question 38:

  Which sentence describes the following regular expression match? preg_match('/^\d+(?:\.[0-9]+)?$/', $test);

  A. It matches float numbers with thousand seperators.

  B. It matches float numbers without thousand seperators.

  C. It matches binary integer numbers.

  D. It matches any string.

  E. It does not match anything

  Correct Answer: B

• Question 39:

  You want to access the 3rd character of a string, contained in the variable $test. Which of the following possibilites work? (Choose 2)

  A. echo $test(3);

  B. echo $test[2];

  C. echo $test(2);

  D. echo $test{2};

  E. echo $test{3};

  Correct Answer: BD

• Question 40:

  What will the following function call print? printf('%010.6f', 22);

  A. 22

  B. 22.00

  C. 022.000000

  D. 22.000000

  Correct Answer: C