PHP5.9 を PHP7 にアップグレードするときに遭遇するいくつかの落とし穴 (php-fpm 図)

http://127.0.0.1/Home/String/index2?a=12&b=19

2017/03/27 10:58:09 [error] 5286#0: *851 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: HTTP_USER_AGENT in /home/UserAgent.php on line 9" while reading response header from upstream

if(!empty($_SERVER['HTTP_USER_AGENT'])){ $user_agent = $_SERVER['HTTP_USER_AGENT']; } else { $user_agent = ''; }

// 获取user参数的值(如果为空，则用'nobody') $username = $_GET['user'] ?? 'nobody'; // 等价于: $username = isset($_GET['user']) ? $_GET['user'] : 'nobody';

2017/03/31 20:56:19 [crit] 19288#0: *1 connect() to unix:/var/run/php7.0.9-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 127.0.0.1, server: www.phalcon3.com, request: "GET /index.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php7.0.9-fpm.sock:", host: "127.0.0.1"

tinywan@tinywan:/usr/local/nginx/logs$ ll /var/run/php7.0.9-fpm.soc ls: 无法访问'/var/run/php7.0.9-fpm.sock': 没有那个文件或目录