world_er的博客

问题由<<?php /** * Creaded by yijie wang on 2015-11-12 10:57:22 * * php链式操作 * 例: 过滤一个字符串首位的空格，然后取字符串的长度 * strlen(trim($str)); * 现需要实现类似js中的链式操作 * $str->tr

<?php /** * Created by yijie wang on 2015-11-12 13:11:59 */ class Person { private $name; private $sex; private $age; public function say() {