4-5-1.php

php电子书

4-5-1.php<br>
//类型提示.<br>
<?
class NormalUser{
	/*
	* 其它相关代码..省略........
	*/
	private $age;
	public function setAge($_age){
		$this->age = $_age;
	}	
	public function getAge(){
		return $this->age ;
	}
}

$normalUser = new NormalUser();
$normalUser->setAge("I am tom"); //这里我们传输一个非数值.
echo "age is " .$normalUser->getAge();

//注意输出结果不是我想要的类型.

?>