January 2021
Intermediate to advanced
505 pages
9h 45m
Chinese
Content preview from PHP编程：第4版
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
下一步
｜
183
?>
<a href="next.php">Move to the next page</a>
</body></html>
示例
6-5
展示了
next.php
文件，这是一个
HTML
页面。跟随前一页到本页的链接，将会
触发持久性对象
$logger
的加载。
__wakeup()
函数调用重新打开日志文件，从而使对象
可用。
示例6-5：next.php
<?php
include_once "Log.php";
session_start();
?>
<html><head><title>Next Page</title></head>
<body>
<?php
$now = strftime("%c");
$logger = $_SESSION['logger'];
$logger->write("Viewed page 2 at {$now}");
echo "<p>The log contains:";
echo nl2br($logger->read());
echo "</p>";
?>
</body></html>
下一步
学习如何在你自己的脚本中使用对象是一项艰巨的任务。在下一章中，我们将从语言语
义过渡到实践，并向你展示
PHP
中最常用的一组面向对象的类
—
日期
和
时间
。
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.