{
echo "{$var} Students";
}
}
// Student = new Student();
// echo $student->total_students;
echo Student::$total_students . "<br/>";
echo Student::welcome_students() . "<br/>";
echo Student::welcome_students("Greetings") . "<br/>";
Student::$total_students = 1;
echo Student::$total_students . "<br/>";
// static variables are shared throughout the inheritance tree
class One
{
static $foo;
}
class Two extends One
{
}
class Three extends Two
{
}
One::$foo = 1;
Two::$foo = 2;
Three::$foo = 3;
echo One::$foo;
// 3
echo Two::$foo;
//3
echo Three::$foo;
//3