PHP中其实也可以用方法链

<?php 
class test { 
private $_name = ''; 
public function setName($name) 
{ 
$this->_name = $name; 
return $this; 
} 
public function getName() 
{ 
echo $this->_name . "\n"; 
return $this; 
} 
} 
$link = new test(); 
// 方法链 
$link->setName('name1')->getName()->setName('name2')->getName()->setName('name3')->getName();

name1 
name2 
name3