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inc/functions.php

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+<?php
+    // 获取网站标题
+    function get_title() {
+        global $config;
+        return $config['title'];
+    }
+    // 获取网站简介
+    function get_description() {
+        global $config;
+        return $config['description'];
+    }
+    // 获取用户 IP
+    function get_ip() {
+        $ip = '0.0.0.0';
+        if(!empty($_SERVER['HTTP_CLIENT_IP'])){
+            $ip = $_SERVER['HTTP_CLIENT_IP'];
+        } else if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
+            $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
+        } else if(!empty($_SERVER['HTTP_X_FORWARDED'])) {
+            $ip = $_SERVER['HTTP_X_FORWARDED'];
+        } else if(!empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP'])) {
+            $ip = $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
+        } else if(!empty($_SERVER['HTTP_FORWARDED_FOR'])) {
+            $ip = $_SERVER['HTTP_FORWARDED_FOR'];
+        } else if(!empty($_SERVER['HTTP_FORWARDED'])) {
+            $ip = $_SERVER['HTTP_FORWARDED'];
+        } else if(!empty($_SERVER['REMOTE_ADDR'])) {
+            $ip= $_SERVER['REMOTE_ADDR'];
+        } else if(!empty($_SERVER['HTTP_VIA'])) {
+            $ip = $_SERVER['HTTP_VIA '];
+        }
+        return $ip;
+    }
+    // 获取用户 UserAgent
+    function get_ua() {
+        $ua = 'N/A';
+        if(!empty($_SERVER['HTTP_USER_AGENT'])) $ua = $_SERVER['HTTP_USER_AGENT'];
+        return $ua;
+    }
+    // 获取程序所在路径
+    function get_uri() {
+        global $config;
+        // 获取传输协议
+        $url = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')) ? 'https://' : 'http://';
+        // 获取域名
+        $url .= $_SERVER['HTTP_HOST'];
+        // 获取程序所在路径
+        $url .= $config['path'];
+        if(substr($url, strlen($url) - 1) != '/') $url .= '/';
+        // 返回值
+        return $url;
+    }
+?>

inc/require.php

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+<?php
+    // 引入配置文件
+    require_once(dirname(__FILE__) . '/../config.php');
+    // 引入域名缩址库
+    require_once('functions.php');
+    require_once('class/db.class.php');
+    require_once('class/url.class.php');
+    // 初始化数据库
+    global $db_c;
+    $db_c = new db();
+?>