What is means of speak()

Question

I was get stuck in this silly method called as speak()

<?php
class Person {
public $age;
function speak() {
echo "Hi!";
}
}
$p1 = new Person();
$p1->age = 23;
echo $p1->age;
$p1->speak();
?>

Answer 1

No body know that. We need to see the code. Not only the Name of a method. It could be or do everything.

Answer 2

Show the code

Answer 3

Riyaz Khan , this is class method!
when you call speak() method, it prints (echoes) "Hi!"
as coded(described) the class Person