最近使用 macOS zsh ssh 登录远程服务器时候，终端会出现如下提示内容：

-bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory

显示中文字符时会不规则的乱码，有些字符乱，有些字符不乱

解决办法是编辑 ~/.zshrc 文件，手动设置一下终端环境的语言编码：

export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

Laravel 可以在通过 APP_ENV 环境变量修改运行时环境，默认的 APP_ENV 是 local，其实他还可以设置其他值，分别是：

local 对应的 development 环境
testing 对应的 test 环境
production 对应的 production 环境

当使用PHPUnit测试的PHP代码中包含session_start()时，就会出现以下的错误提示：

PHPUnit 4.8.36 by Sebastian Bergmann and contributors.

E

Time: 110 ms, Memory: 12.00MB

There was 1 error:

1) ExampleTest::testBasicExample
ErrorException: session_start(): Cannot start session when headers already sent

解决办法是打开phpunit.xml文件，设置processIsolation属性为true

网上有很多 CentOS 7 安装 Tomcat 8 教程，都是从 Apache 官网下载二进制包后解压启动，随意性太强。没有通过系统包管理来维护是不完美的。

yum install https://harbottle.gitlab.io/harbottle-main/7/x86_64/harbottle-main-release.rpm
yum install tomcat8

systemctl enable tomcat8
systemctl restart tomcat8

部署的时候把 war 文件放到 /var/lib/tomcat8/webapps 目录下即可。

sudo dphys-swapfile swapoff
sudo dphys-swapfile uninstall
sudo systemctl disable dphys-swapfile

SQL*Plus 默认执行完之后，按上下左右键效果是上图的样子，非常不爽。

yum install -y epel-release
yum install -y rlwrap

之后使用 rlwrap sqlplus 来启动，效果就非常完美了

snap install docker

配置文件位置是在

/var/snap/docker/current/config/daemon.json

{
    "registry-mirrors": ["https://registry.docker-cn.com"],
    "log-level":        "error",
    "storage-driver":   "aufs"
}

sudo systemctl disable apache2
sudo apt-get install network-manager libnss3-tools jq xsel
composer global require cpriego/valet-linux
mkdir ~/Sites
~/.config/composer/vendor/bin/valet install
~/.config/composer/vendor/bin/valet park ~/Sites

git clone https://github.com/pdezwart/php-amqp.git
cd php-amqp
phpize
./configure --with-librabbitmq-dir=/usr/local/Cellar/rabbitmq-c/0.9.0
make
make install

vi /usr/local/etc/php/7.3/conf.d/ext-amqp.ini

extension="amqp.so"

vi /etc/yum.repos.d/unit.repo

[unit]
name=unit repo
baseurl=https://packages.nginx.org/unit/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

yum install unit
yum install unit-php
systemctl restart unit

vi demo.json

{
    "listeners": {
        "*:8080": {
            "application": "demo"
        }g
    },
    "applications": {
        "demo": {
            "type": "php",
            "processes": 20,
            "root": "/home/www/demo/public",
            "index": "index.php"
        }
    }
} 

mkdir -p /home/www/demo/public
vi /home/www/demo/public/index.ph

<?php
phpinfo()

curl -X PUT -d @demo.json --unix-socket /run/control.unit.sock http://localhost/config/