CodeIgniter，一个强大的PHP框架，为开发人员提供了一个强大的平台，用于构建动态和功能丰富的Web应用程序。当与领先的企业级操作系统 Rocky Linux 9 的稳定性和安全性结合使用时，您可以创建尖端的 Web 项目。
在 Rocky Linux 9 上安装 CodeIgniter
第 1 步。第一步是将系统更新到最新版本的软件包列表。为此，请运行以下命令：
<span class="pln">sudo dnf update</span>
第 2 步。安装灯组
LAMP堆栈（Linux，Apache，MySQL，PHP）构成了许多Web应用程序的骨干。您可以在此处遵循我们的指南。
第 3 步。为 CodeIgniter 配置 Apache 。
为 CodeIgniter 设置虚拟主机可确保干净的 URL 结构并增强应用程序的性能：
<span class="pln">cd </span><span class="pun">/</span><span class="pln">etc</span><span class="pun">/</span><span class="pln">httpd</span><span class="pun">/</span><span class="pln">conf</span><span class="pun">.</span><span class="pln">d</span><span class="pun">/</span><span class="pln"> sudo nano codeigniter</span><span class="pun">.</span><span class="pln">conf</span>
添加以下配置：
<span class="tag"><VirtualHost</span><span class="pln"> *:80</span><span class="tag">></span><span class="pln"> ServerAdmin webmaster@example.com DocumentRoot /var/www/html/codeigniter ServerName your_domain.com </span><span class="tag"><Directory</span> <span class="pun">/</span><span class="atn">var</span><span class="pun">/</span><span class="atn">www</span><span class="pun">/</span><span class="atn">html</span><span class="pun">/</span><span class="atn">codeigniter</span><span class="tag">></span><span class="pln"> Options Indexes FollowSymLinks AllowOverride All Require all granted </span><span class="tag"></Directory></span><span class="pln"> ErrorLog /var/log/httpd/codeigniter_error.log CustomLog /var/log/httpd/codeigniter_access.log combined </span><span class="tag"></VirtualHost></span>
启用虚拟主机并重新启动 Apache ：
<span class="pln">sudo a2ensite codeigniter</span><span class="pun">.</span><span class="pln">conf sudo systemctl restart httpd</span>
第 4 步。下载并安装 CodeIgniter。
现在访问CodeIgniter官方网站下载最新版本。或者，使用 或 直接下载包：wgetcurl
<span class="pln">cd </span><span class="pun">/</span><span class="pln">tmp wget https</span><span class="pun">:</span><span class="com">//codeload.github.com/codeigniter4/framework/legacy.zip/refs/tags/v4.3.6</span>
提取下载的存档并将文件移动到 Web 服务器的根目录：
<span class="pln">unzip codeigniter4</span><span class="pun">-</span><span class="pln">framework</span><span class="pun">-</span><span class="pln">v4</span><span class="pun">.</span><span class="lit">3.6</span><span class="pun">-</span><span class="lit">0</span><span class="pun">-</span><span class="pln">ge392123</span><span class="pun">.</span><span class="pln">zip sudo mv ccodeigniter4</span><span class="pun">-</span><span class="pln">framework</span><span class="pun">-</span><span class="pln">v4</span><span class="pun">.</span><span class="lit">3.6</span><span class="pun">-</span><span class="lit">0</span><span class="pun">-</span><span class="pln">ge392123 </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">www</span><span class="pun">/</span><span class="pln">html</span><span class="pun">/</span><span class="pln">codeigniter</span>
确保 CodeIgniter 文件和目录的权限和所有权正确：
<span class="pln">sudo chown </span><span class="pun">-</span><span class="pln">R apache</span><span class="pun">:</span><span class="pln">apache </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">www</span><span class="pun">/</span><span class="pln">html</span><span class="pun">/</span><span class="pln">codeigniter sudo chmod </span><span class="pun">-</span><span class="pln">R </span><span class="lit">755</span> <span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">www</span><span class="pun">/</span><span class="pln">html</span><span class="pun">/</span><span class="pln">codeigniter</span>
第5步。验证安装
让我们验证一下 CodeIgniter 在 Rocky Linux 9 上的成功安装：
<span class="pln">cd </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">www</span><span class="pun">/</span><span class="pln">html</span><span class="pun">/</span><span class="pln">codeigniter</span><span class="pun">/</span><span class="pln">application</span><span class="pun">/</span><span class="pln">controllers sudo nano </span><span class="typ">Welcome</span><span class="pun">.</span><span class="pln">php</span>
将以下代码添加到文件中：
<span class="pun"><?</span><span class="pln">php
</span><span class="kwd">defined</span><span class="pun">(</span><span class="str">'BASEPATH'</span><span class="pun">)</span><span class="pln"> OR </span><span class="kwd">exit</span><span class="pun">(</span><span class="str">'No direct script access allowed'</span><span class="pun">);</span>
<span class="kwd">class</span> <span class="typ">Welcome</span> <span class="kwd">extends</span><span class="pln"> CI_Controller </span><span class="pun">{</span>
<span class="kwd">public</span> <span class="kwd">function</span><span class="pln"> index</span><span class="pun">()</span> <span class="pun">{</span><span class="pln">
$this</span><span class="pun">-></span><span class="pln">load</span><span class="pun">-></span><span class="pln">view</span><span class="pun">(</span><span class="str">'welcome_message'</span><span class="pun">);</span>
<span class="pun">}</span>
<span class="pun">}</span>
创建示例视图：
<span class="pln">cd </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">www</span><span class="pun">/</span><span class="pln">html</span><span class="pun">/</span><span class="pln">codeigniter</span><span class="pun">/</span><span class="pln">application</span><span class="pun">/</span><span class="pln">views sudo nano welcome_message</span><span class="pun">.</span><span class="pln">php</span>
将以下 HTML 添加到文件中：
<span class="dec"><!DOCTYPE html></span> <span class="tag"><html></span> <span class="tag"><head></span> <span class="tag"><title></span><span class="pln">Welcome to CodeIgniter Idroot.Us</span><span class="tag"></title></span> <span class="tag"></head></span> <span class="tag"><body></span> <span class="tag"><h1></span><span class="pln">Hello, CodeIgniter!</span><span class="tag"></h1></span> <span class="tag"></body></span> <span class="tag"></html></span>
保存文件，然后打开 Web 浏览器并在地址栏中输入服务器的 IP 地址或域名。您应该会看到欢迎消息，确认 CodeIgniter 已成功安装。
感谢您使用本教程在 Rocky Linux 9 系统上安装 CodeIgniter PHP 框架。有关其他帮助或有用信息，我们建议您查看 CodeIgniter 官方网站。
