Zend 200-530 Exam Questions Free Practice Test

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Viewing questions 21-30 out of questions

Questions # 21:

What is the function of backtick (`) characters in PHP?

Options:

Same as single-quotes, used to enclose strings.

Escape operators.

No special meaning.

Execute the enclosed string as a command.

Error control operators.

Expert Solution

Questions # 22:

How many elements does the array $pieces contain after the following piece of code has been executed?

$pieces = explode("/", "///");

Options:

Expert Solution

Questions # 23:

What is the difference between "print" and "echo"?

Options:

There is no difference.

Print returns length of data printed and echo does not

Echo returns length of the data printed and print does not

Print buffers the output, while echo does not

None of the above

Expert Solution

Questions # 24:

You want to extract the pieces of a date string, which looks like this:

"2005-11-02". Which of the following pieces of code will properly assign $year,

$month and $day with their respective values?

Options:

sscanf("2005-11-02", '%d-%d-%d', $year, $month, $day);

scan("2005-11-02", '%d-%d-%d', $year, $month, $day);

sscanf('%d-%d-%d', "2005-11-02", $year, $month, $day);

sscan($year, $month, $date '%d-%d-%d', "2005-11-02");

Expert Solution

Questions # 25:

What is the output of the following code?

class test {

public $value = 0;

function test() {

$this->value = 1;

} function __construct() {

$this->value = 2;

}}

$object = new test();

echo $object->value;



					

												Options:
						
A. 2
						
						
B. 1
						
						
C. 0
						
						
D. 3
						
						
E. No Output, PHP will generate an error message.
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									A



			


			

				

			         Questions # 26:

			    



				

					

					

						One common security risk is exposing error messages directly in the browser. Which PHP configuration directive can be disabled to prevent this?
					

					

												Options:
						
A. html_display
						
						
B. error_reporting
						
						
C. display_errors
						
						
D. error_log
						
						
E. ignore_repeated_errors
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									C

								

								
							

							

							
							



						



					

				

				

			

			


			

				

			         Questions # 27:

			    



				

					

					

						What is the output of the following code?
str_pad('PHP', 10, 'P', STR_PAD_BOTH);
					

					

												Options:
						
A. H
						
						
B. PHPPPPPPPP
						
						
C. PPPPHPPPPP
						
						
D. PPPPPPPPHP
						
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									C

								

								
							

							

							
							



						



					

				

				

			

			


			

				

			         Questions # 28:

			    



				

					

					

						The following code piece should print "PHP is cool", but unexpectedly, it just prints "cool". How would you correct it?
echo str_replace('PHP is a pain.', 'a pain', 'cool');
					

					

												Options:
						
A. str_replace('PHP is a pain.', 'cool', 'a pain');
						
						
B. str_replace('a pain', 'cool', 'PHP is a pain.');
						
						
C. str_replace('cool', 'a pain', 'PHP is a pain.');
						
						
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									B

								

								
							

							

							
							



						



					

				

				

			

			


			

				

			         Questions # 29:

			    



				

					

					

						What does the __FILE__ constant contain?
					

					

												Options:
						
A. The filename of the current script.
						
						
B. The full path to the current script.
						
						
C. The URL of the request made.
						
						
D. The path to the main script.
						
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									B

								

								
							

							

							
							



						



					

				

				

			

			


			

				

			         Questions # 30:

			    



				

					

					

						Where does the session extension store the session data by default?
					

					

												Options:
						
A. SQLite Database
						
						
B. MySQL Database
						
						
C. Shared Memory
						
						
D. File system
						
						
E. Session Server
						
						
					

					

							

						

						
						

							 Expert Solution

						

						


						
						

							

						

						

							

								

					          		Answer

					        	

									

									D

								

								
							

							

							
							



						



					

				

				

			

			


				

			

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