Create a PHP script to find the square of a number using a function.
EasyProblem Statement
Create a PHP script to find the square of a number using a function.
Sample Input
A number $num = 4.
Sample Output
16
Limits
Time: 2s · Memory: 256 MB
Create a PHP script to find the square of a number using a function.
A number $num = 4.
16
Time: 2s · Memory: 256 MB