Beginner
PHP
Q25 / 100
What does empty() check in PHP?
Correct! Well done.
Incorrect.
The correct answer is B) If a variable is considered empty: "", 0, "0", null, false, [], or unset
B
Correct Answer
If a variable is considered empty: "", 0, "0", null, false, [], or unset
Explanation
empty($var) returns true for "", 0, "0", null, false, [], 0.0. It suppresses errors for undefined variables.
Progress
25/100