200-710 Free Demo Practice Test Software

By Author: Dennis Ng
Total Articles: 67
Comment this article

Question: 1

What is the difference between the spaceship operator () and the strcmp() function?

A. There is no difference in functionality
B. strcmp() returns a Boolean value, the spaceship operator a number
C. strcmp() does a case-intensive comparison, the spaceship operator does not
D. The spaceship operator returns -1, 0 or 1; strcmp() may return any integer

Answer: D

Question: 2

Which of these error types may be handled by a user defined error handler function? (Choose two.)

A. E_ERROR
B. E_NOTICE
C. E_PARSE
D. E_WARNING

Answer: A, C

Question: 3

CORRECT TEXT
What is the output of the following code?


Answer: 1

Question: 4
What is the output of the following code?


A. string(0) “”
B. bool(false)
C. string(1) “!”
D. string(2) “k!”

Answer: C

Question: 5

Consider 3 PHP files that are called asynchronously via XmlHttpRequest:
...
...
Which of the following statements is true? (Choose two.)

A. The total execution time for all 3 requests will be the maximum of the longest sleep() call
B. The requests may be processed out of order
C. The requests are guaranteed to be executed in order
D. Concurrent requests will be blocked until the session lock is released

Answer: A

Question: 6

What is the output of the following code?


A. 1
B. 2
C. null

Answer: A

Question: 7

What is the benefit of using persistent database connections in PHP? (Choose two.)

A. Reduces the connection & authentication overhead of connecting to the database
B. Ensures that only a single connection is open to the database from PHP
C. Allows connection settings such as character set encoding to persist
D. Allows for resumption of transactions across multiple requests.

Answer: C, D

Question: 8

What is the output of the following code?


A. MyNamespace\Test
B. empty string
C. parse error
D. Test

Answer: B

Question: 9

What function is best suited for extracting data from a formatted string into an array?

A. fgetcsv
B. sscanf
C. sprintf
D. strtok

Answer: C

Question: 10

What exception type will catch the error raised by the expression 2 / 0?

A. LogicException
B. RangeException
C. DivisionByZeroError
D. ArithmeticError

Answer: C

Question: 11

CORRECT TEXT
Which value will be assigned to the key 0 in the following code?


Answer: 1

Question: 12
What is the output of the following code?
echo '1' . (print '2') + 3;

A. 123
B. 213
C. 142
D. 214
E: Syntax error

Answer: D

Question: 13

What is the output of the following code?
$a = 3;
switch ($a) {
case 1: echo 'one'; break;
case 2: echo 'two'; break;
default: echo 'four'; break;
case 3: echo 'three'; break;
}

A. one
B. two
C. three
D. four

Answer: C

Question: 14

What is "instanceof" an example of?

A. a boolean
B. an operator
C. a function
D. a language construct
E: a class magic

Answer: B

Question: 15

Which of the following may be used in conjunction with CASE inside a SWITCH statement?

A. A scalar
B. An expression
C. A boolean
D. All of the above

Answer: D

Question: 16

What is the output of the following code?
$a = 'a'; $b = 'b';
echo isset($c) ? $a.$b.$c : ($c = 'c').'d';

A. abc
B. cd
C. 0d

Answer: B