依赖注入的实现
<?php
// 对象依赖注入
// 女朋友类
class Girl
{
public function work()
{
return '会做饭';
}
public function hobby()
{
return '爱购物';
}
}
// 男朋友类
class Boy
{
public function getInfo()
{
$girl = new Girl;
return '我的女朋友'.$girl->work();
}
}
$boy = new Boy;
echo $boy->getInfo();
class Boy1
{
private $girl = null;
public function __construct(Girl $girl)
{
$this->girl = $girl;
}
public function getInfo()
{
return '我的女朋友' .$this->girl->work();
}
}
$girl = new Girl;
$boy1 = new Boy1($girl);
echo $boy1->getInfo();
echo '<hr>';