Regarding the restrictions of PHP array key and value, what is correct?
A, key can only be int or string type, value can be any type
B, key can be any type, value can be any type
C, key can be any type, value can only be int or string type
D, key can only be int or string type, value can only be int or string type
Answer:A
Regarding the restrictions of PHP array key and value, what is correct?
A, key can only be int or string type, value can be any type B, key can be any type, value can be any type C, key can be any type, value can only be int or string type D, key can only be int or string type, value can only be int or string type