PHP Quiz

Answer 10 questions and see how you score!

Enter Your Name

1. Which function determines if garbage collection is enabled?

gc_enabled()

gc_status()

gc_active()

gc_check()

2. What is the output of: echo 5 . 3;

Error

3. Which function returns true if value is callable?

is_callable()

callable()

function_exists()

method_exists()

4. What is the output of: echo 0 == "0";

True

False

Error

NULL

5. Which function disables garbage collection?

gc_disable()

gc_stop()

gc_off()

disable_gc()

6. Which function is used to clone an object?

clone

copy

duplicate

new

7. Which function returns the current working directory?

getcwd()

pwd()

current_dir()

dir()

8. Which function trims characters from both sides of a string?

trim()

strip()

clean()

chop()

9. Which function returns memory usage of the script?

memory_get_usage()

get_memory()

memory_usage()

usage_memory()

10. Which superglobal contains form data sent via POST?

$_POST

$_GET

$_FORM

$_DATA