MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which class accepts a class name or an object reference and returns an array of interface name? |
| A. | class_implements() |
| B. | is_subclass() |
| C. | is_subclass_of() |
| D. | class_interface() |
| Answer» B. is_subclass() | |
| 2. |
Which one of the following function should I use to find the parent class of a class? |
| A. | get_parent_class() |
| B. | parent_class() |
| C. | class_parent() |
| D. | get_class_parent() |
| Answer» B. parent_class() | |
| 3. |
What will be the output if a protected method is given as the argument to the function method_exist()? |
| A. | Method does not exist |
| B. | False |
| C. | Error |
| D. | True |
| Answer» E. | |
| 4. |
If you call a method and it doesn’t exist it’ll cause a problem. To check the method which function will you use? |
| A. | _method() |
| B. | methodexists() |
| C. | is_callable() |
| D. | is_method() |
| Answer» D. is_method() | |
| 5. |
You use the get_class_methods() function to return the names of all the methods in the class. Which function will you use to print it on the screen? |
| A. | printf() |
| B. | print_ar |
| C. | print_r |
| D. | echo |
| Answer» D. echo | |
| 6. |
PHP 4 did not support instanceof. Instead, which function did it provide? |
| A. | is() |
| B. | get_class() |
| C. | is_a() |
| D. | is_the() |
| Answer» D. is_the() | |
| 7. |
Which one of the following will you use to check the class of an object? |
| A. | class() |
| B. | _class() |
| C. | class_check() |
| D. | get_class() |
| Answer» E. | |
| 8. |
Which one of the following functions will you use to check that the class exists before you work with it? |
| A. | class_exist() |
| B. | class_exists() |
| C. | exist() |
| D. | exists_class() |
| Answer» C. exist() | |
| 9. |
How many times can you define _________ autoload in a process? |
| A. | once |
| B. | twice |
| C. | thrice |
| D. | as many times as needed |
| Answer» B. twice | |
| 10. |
Which function was introduced to help automate the inclusion of class files? |
| A. | __load() |
| B. | __preload() |
| C. | __autoload() |
| D. | __inload() |
| Answer» D. __inload() | |