<?php 
class Human{
		public $name;
		public $height;
		public $weight;
		public function eat($food){
			echo $this->name."'s eating".$fond."<br>";
		}
		
	}
	
	class NbaPlayer extends Human {
		
		public $team;
		public $playerNumber;
		
		function __construct($name,$height,$weight,$team,$playerNumber){
			
			//$this是php里面的伪变量，表示对象本身。
			//可以通过$this->的方式访问对象的属性和方法。
			$this->name = $name;
			$this->height = $height;
			$this->weight = $weight;
			$this->team = $team;
			$this->playerNumber = $playerNumber;
			
		} 
		
		public function run(){
			echo "Running\n";
		}
		
		public function jump(){
			echo "Jumping\n";
		}	
	}
	$player = new NbaPlayer("Jordan","198cm","98kg","BUll","23");
		
		echo $player->name."<br>";
		
		$player->eat("Apple");
		
?>