PHP Advanced Quiz 2
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Quiz 2
1. What is the main benefit of using a Generator?
Reduced memory usage
Faster CPU execution
Automatic data encryption
2. Which keyword is essential for creating a Generator?
return
static
yield
3. What is the purpose of a WeakMap in PHP 8.0?
To encrypt object data
To prevent memory leaks by allowing garbage collection
To store primitive types only
4. What does SPL stand for?
Standard PHP Library
Secure PHP Layer
Structured Program Language
5. When should you use SplFixedArray over a normal array?
When you need an associative array
When the size changes constantly
When you have a fixed size and want to save memory
6. How does PHP primarily manage memory for objects?
Manual freeing
Reference counting
Stop-the-world tracing
7. What is a Closure in PHP?
An anonymous function capturing variables from its outer scope
A class that cannot be extended
A method that closes a file
8. Which keyword is used in a Closure to access variables from the outer scope?
global
static
use
9. Which magic method allows an object to be called like a function?
__call()
__invoke()
__execute()
10. Which function returns the current memory usage of a PHP script?
memory_get_usage()
get_mem()
sys_get_loadavg()
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