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.
2
｜
第
1
章
PHP
介绍
PHP
语言本身非常灵活，如你可以生成任何形式的文件，而不是局限于只输出
HTML
或
者其他文本。同时其自身还内置了很多功能，支持
PDF
文件和
GIF
、
JPEG
、
PNG
等图
片格式文件。
PHP
最显著的特点之一是其对数据库的广泛支持，其支持所有主流的数据库（包括
MySQL
、
PostgreSQL
、
Oracle
、
Sybase
、
MS SQL
、
DB2
、
ODBC
兼容数据库），甚至包
括很多不知名的数据库。即使是最新的
NoSQL
式的数据库，如
CouchDB
和
MongoDB
，
它也同样支持。使用
PHP
从数据库动态读取内容，可使创建
Web
页面变得非常简单。
最后，
PHP
提供了一个
PHP
代码库，用来执行一些常见任务 ：数据库抽象、错误处理
等，另外还可以使用
PHP
扩展和应用程序库（
PEAR
）。
PEAR
是一个分布式的、用于重
用
PHP
组件的框架，关于它的信息请参见链接
1
注
1
。
PHP
的历史简述
在
1994
年，
Rasmus Lerdorf
设计了第一版
PHP
，但是它和人们今天使用的
PHP
有很大
的不同。了解
PHP
语言的演变历史，可以帮助你更好地了解
PHP
是如何发展到现在的。
这里的故事要从
Rasmus
自己的邮件和丰富的评论说起。
PHP
的演变
这个是新闻组
comp.infosystems.www.authoring.cgi
在
1995
年发布的公告，宣布
PHP 1.0
发布：
From: rasmus@io.org (Rasmus Lerdorf)
Subject: Announce: Personal Home ...
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.