php 晓安

<?php
/**
 * Created by PhpStorm.
 * User: yuyi
 * Date: 2018/4/27
 * Time: 16:21
 */
/**
 * Class Base
 */
class Base {
    public function getData() {
        return [1,2];
    }
}
/**
 * Class Filter1
 * @property Base
 */
class Filter1 {
    private $next;
    public function __construct($next)
    {
        $this->next = $next;
    }
    /**
     * @return mixed
     */
    public function getData() {
        $data = $this->next->getData();
        //todo
        array_unshift($data, 99);
        return $data;
    }
}
class Filter2 {
    private $next;
    public function __construct($next)
    {
        $this->next = $next;
    }
    public function getData() {
        $data = $this->next->getData();
        //todo
        $data[] = 5;
        return $data;
    }
}
$b = new Base();
$b = new Filter2($b);
$b = new Filter1($b);
print_r($b->getData());

php 晓安

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