PHP5.9 升级到PHP7 遇到的一些坑(php-fpm 图解)-PHP7

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apache_event_php-fpm 表示图:

b2670a85b923ebe8550815945f7d52a.png

nginx-php-fpm表示图:

361cb1b73f655beaca74f359bb4873e.pngWorker-Master-Server

3106cc7fed066f4d2478a12ad861f33.png

TCP-Nginx_PHP

16425cd62147bd0b25b402afd62657b.png

Nginx-FastCGI

6f3b9c6b7eece23612da4b8648ac305.png

一、应用$_GET 猎取一切参数,php7 会多出一个参数:_url ,例如拜访的地点

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

此时的的参数_url = "Home/String/index2"

二、正在PHP7 中为一个Error:PHP Notice: Undefined index: HTTP_USER_AGENT in line 2

php5.9则为一个notice

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

处理:http://stackoverflow.com/questions/16330496/php-notice-undefined-index-http-user-agent-in-line-2

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

三、NULL 兼并运算符 ,PHP7才正式退出了??这个运算符:

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

四、php-fpm 不启动的结果

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: 无奈拜访'/var/run/php7.0.9-fpm.sock': 不阿谁文件或目次

搞了半天,原来php-fmp 不启动,贵正在坚持,置信本人.

相干保举:《PHP教程》

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