Go Web服务与现有PHP FastCGI应用的集成策略

package main

import (
    "log"
    "net/http"
    "net/http/httputil"
    "net/url"
)

func main() {
    // 创建一个反向代理，指向处理PHP的Nginx实例
    phpProxyURL, _ := url.Parse("http://localhost:8081") // Nginx监听PHP请求的地址
    phpProxy := httputil.NewSingleHostReverseProxy(phpProxyURL)

    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        // 根据请求路径判断是否为PHP请求
        if isPHPRequest(r.URL.Path) {
            log.Printf("Proxying PHP request: %s", r.URL.Path)
            // 将请求转发给Nginx处理PHP
            phpProxy.ServeHTTP(w, r)
            return
        }

        // 处理Go服务自身的逻辑
        w.WriteHeader(http.StatusOK)
        w.Write([]byte("Hello from Go! This is not a PHP request."))
    })

    log.Println("Go server listening on :8080")
    log.Fatal(http.ListenAndServe(":8080", nil))
}

// isPHPRequest 示例函数：判断请求路径是否应由PHP处理
func isPHPRequest(path string) bool {
    // 简单的判断逻辑，例如所有以.php结尾的请求
    return len(path) > 4 && path[len(path)-4:] == ".php" || path == "/legacy_php_app/"
}

# nginx.conf
server {
    listen 8081; # 监听Go服务转发过来的PHP请求
    server_name localhost;
    root /path/to/your/php/project; # PHP项目根目录

    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock; # 根据实际情况配置PHP-FPM
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    # 如果PHP应用有其他非.php后缀的路由，也需要在此处配置
    location /legacy_php_app/ {
        index index.php;
        try_files $uri $uri/ /legacy_php_app/index.php?$args; # 示例：单入口PHP应用
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root/legacy_php_app/index.php;
        include fastcgi_params;
    }
}

# nginx.conf
server {
    listen 80;
    server_name your_domain.com; # 替换为你的域名或IP

    # 根路径或其他非PHP请求转发给Go服务
    location / {
        proxy_pass http://localhost:8080; # Go服务监听的地址和端口
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # 所有以.php结尾的请求转发给PHP-FPM
    location ~ \.php$ {
        root /path/to/your/php/project; # PHP项目根目录
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock; # 根据实际情况配置PHP-FPM
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    # 如果PHP应用有特定目录或路由，例如旧版PHP应用在 /legacy/ 目录下
    location /legacy/ {
        root /path/to/your/php/project; # PHP项目根目录
        index index.php;
        try_files $uri $uri/ /legacy/index.php?$args; # 确保单入口应用也能正确路由
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root/legacy/index.php;
        include fastcgi_params;
    }

    # 静态文件服务（可选，Nginx处理静态文件效率更高）
    location ~* \.(jpg|jpeg|gif|png|css|js|ico|woff|woff2|ttf|svg|eot)$ {
        root /path/to/your/static/files; # 静态文件目录
        expires 30d; # 缓存设置
        add_header Cache-Control "public";
    }
}