Determine the exact output of the code:

$num = 3.14;

echo floor ($num);

Select one:

a. 3.75

b. 3.5

c. 4

d. 3

3

Explanation:

The function floor () is used to give the integer which is smaller than or equal to the provided decimal value.

for example:

let a=5.8

floor (a);

the function provides the value 5 (smaller than or equal to 5.8).

In the given code:

variable num assigns the number 3.14.

then, floor (3.14) gives the value 3 (smaller than or equal to 3.14).

then, the echo print the value on the screen.

Therefore, the correct answer is 3.