Define And Accessing Constant

define("SPORT", "Hockey"); // define a constant SPORT
echo "I play " . constant("SPORT");
echo "I play " . (SPORT); // another way of accessing constant.

define("RANK", 10); // define a constant RANK
echo "Player rank: " . constant("RANK");
echo "Player rank " . (RANK);
echo "Player rank increased " . (RANK + 1);

Assign A Constant Value To A Variable

define("SPORT", "Hockey"); // define a constant SPORT
$sport = SPORT;
echo "I play " . $sport;

Magic Constant

20 echo "Line #:" . __LINE__; // print line# using __LINE__ constant