<?php
class CatAction{
var $name;
var $age;
var $sex;
function say(){
echo $this->name;
echo $this->age;
echo $this->sex;
}
}
 
$nishuo = new CatAction;
$nishuo->name='lisi';
$nishuo->age='20';
$nishuo->sex='nv';
 
$nishuo->say();

<?php
class Person{
var $name;
var $age;
var $sex;
function __construct($name='',$sex='nv',$age=''){
$this->name = $name;
$this->sex = $sex;
$this->age = $age;
}
function say(){
echo $this->name;
echo $this->sex;
echo $this->age.'<br>';
}
function __destruct(){
echo '886'.$this->name;
}
}
 
$yonglei = new Person('lisi','nan','18');
$yonglei->say();
?>