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docs/note/learn/swoole学习笔记/01-swoole环境配置.md
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docs/note/learn/swoole学习笔记/01-swoole环境配置.md
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title: swoole学习笔记(一)-swoole环境配置(树莓派安装)
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---
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> 打算开始学习 swoole 了(原来好像弄过,不过那次只是接触了一下,并未太过深入,这次重新来过 (° ー °〃)
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> swoole 虽然能在 windows 上搭建,不过我觉得意义不大....需要安装 CygWin 这和在 linux 上有什么区别呢 ┑(￣ Д ￣)┍,刚好现在手上有一台空闲的树莓派 zero,试试在上面搭建
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## 编译 php
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> 之所以要编译安装是因为在 swoole 编译的时候需要用到 phpize,apt-get 安装的时候没发现有
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现在这个上面什么东西都没有,先安装 php,我选最新的 php7.2.6,zero 配置是真的好低....解压和编译 cpu 都 100%了很慢....趁这个时间去干点别的吧
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下载,解压源码,安装依赖
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强烈建议使用国内镜像....不然可能一些依赖 lib 按照失败,导致编译错误
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```
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sudo -i
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wget http://hk1.php.net/get/php-7.2.6.tar.gz/from/this/mirror
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mv mirro php.tar.gz
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tar -zxvf php.tar.gz
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apt-get update
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apt-get install libxml2* libbz2-dev libjpeg-dev libmcrypt-dev libssl-dev openssl libxslt1-dev libxslt1.1 libcurl4-gnutls-dev libpq-dev build-essential git make
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```
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编译配置,复制的网上的 lnmp 编译- -...去掉了和 Nginx 有关的编译项,我只需要编译出 php 就行,不需要 Nginx 那些环境,当然如果你之前已经有了这些,这一部分就可以跳过了
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```
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cd php-7.2.6
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./configure \
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--prefix=/usr/local/php \
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--exec-prefix=/usr/local/php \
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--bindir=/usr/local/php/bin \
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--sbindir=/usr/local/php/sbin \
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--includedir=/usr/local/php/include \
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--libdir=/usr/local/php/lib/php \
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--mandir=/usr/local/php/php/man \
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--with-config-file-path=/usr/local/php/etc \
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--with-mysql-sock=/var/lib/mysql/mysql.sock \
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--with-mcrypt=/usr/include \
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--with-mhash \
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--with-openssl \
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--with-mysql=shared,mysqlnd \
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--with-mysqli=shared,mysqlnd \
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--with-pdo-mysql=shared,mysqlnd \
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--with-gd \
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--with-iconv \
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--with-zlib \
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--enable-zip \
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--enable-inline-optimization \
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--disable-debug \
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--disable-rpath \
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--enable-shared \
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--enable-xml \
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--enable-bcmath \
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--enable-shmop \
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--enable-sysvsem \
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--enable-mbregex \
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--enable-mbstring \
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--enable-ftp \
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--enable-gd-native-ttf \
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--enable-pcntl \
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--enable-sockets \
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--with-xmlrpc \
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--enable-soap \
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--without-pear \
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--with-gettext \
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--enable-session \
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--with-curl \
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--with-freetype-dir \
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--enable-opcache \
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--enable-redis \
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--enable-fpm \
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--enable-fastcgi \
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--disable-fileinfo
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```
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CPU 100% 有点怕,树莓派 zero 性能确实是弱...编译好慢....解决了编译配置的问题后就开始编译,我是真的睡了一觉(第二天)才起来 make install
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```
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make && make install
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```
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设置一下 php.ini 文件
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```
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cp php.ini-production /usr/local/php/etc/php.ini
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//我输入php -v之后发现没反应,但是php确实是成功了,在/usr/local/php/bin里面./php -v也有反应,想到可能是没有链接到/usr/bin 目录里,用ln命令链接一下
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ln -s /usr/local/php/bin/php /usr/bin/php
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//链接phpize
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ln -s /usr/local/php/bin/phpize /usr/bin/phpize
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```
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成功之后,老套路
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```
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php -v
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```
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成功,终于可以下一步了,进入 swoole 编译配置
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## swoole 编译
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从 git 上下载源码[https://github.com/swoole/swoole-src/releases](https://github.com/swoole/swoole-src/releases),开始编译
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```
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wget https://github.com/swoole/swoole-src/archive/v4.0.0.zip
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unzip v4.0.0.zip
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mv swoole-src-4.0.0/ swoole
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cd swoole
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phpize
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```
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这里我提示了一个错误...
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Cannot find autoconf. Please check your autoconf installation and the
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$PHP_AUTOCONF environment variable. Then, rerun this script.
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解决办法:
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```
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apt-get install m4 autoconf
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```
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phpize 成功之后继续运行编译配置和开始编译(但愿这次不用那么久了...)
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开启一些需要的:[编译配置项](https://wiki.swoole.com/wiki/page/437.html)
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```
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./configure --with-php-config=/usr/local/php/bin/php-config --enable-sockets --enable-swoole-debug --enable-openssl --enable-mysqlnd --enable-coroutine
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make && make install
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```
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然后需要在 php.ini 中配置下
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```
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vi /usr/local/php/etc/php.ini
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//添加
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extension=swoole.so
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```
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然后`php -m`
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有这一项就代表成啦~
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## 测试
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> 安装编译都完成之后,当然来试试是不是真的能用了
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复制官方的例子,嘿嘿嘿~
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```php
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<?php
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//创建websocket服务器对象，监听0.0.0.0:9502端口
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$ws = new swoole_websocket_server("0.0.0.0", 9502);
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//监听WebSocket连接打开事件
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$ws->on('open', function ($ws, $request) {
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var_dump($request->fd, $request->get, $request->server);
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$ws->push($request->fd, "hello, welcome\n");
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});
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//监听WebSocket消息事件
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$ws->on('message', function ($ws, $frame) {
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echo "Message: {$frame->data}\n";
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$ws->push($frame->fd, "server: {$frame->data}");
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});
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//监听WebSocket连接关闭事件
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$ws->on('close', function ($ws, $fd) {
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echo "client-{$fd} is closed\n";
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});
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$ws->start();
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```
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`php swoole.php`
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web:
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```html
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<script>
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var ws = new WebSocket("ws://localhost:9502");
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ws.onopen = function () {
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ws.send("send data");
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};
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ws.onmessage = function (evt) {
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var received_msg = evt.data;
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console.log(received_msg);
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};
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ws.onclose = function () {
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console.log("连接关闭");
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};
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</script>
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```
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成了~
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---
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## 问题解决
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### redis 扩展安装
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> 弄完后...并没有用,然后重新编译一次成了....= =,不过还是记着
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在 swoole 编译完成后,又遇到了一个问题....
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```
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php: symbol lookup error: /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/swoole.so: undefined symbol: swoole_redis_coro_init
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```
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查资料后发现可能是需要给 php 安装 redis 扩展....[redis 源码下载](https://pecl.php.net/package/redis)
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```
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wget https://pecl.php.net/get/redis-4.0.2.tgz
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tar -zxvf redis-4.0.2.tgz
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cd redis-4.0.2
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phpize
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./configure --with-php-config=/usr/local/php/bin/php-config
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make && make install
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```
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然后在 php.ini 中加上`extension = redis.so`就好了,注意这个配置一定要放在 swoole 的配置的前面,因为这些扩展都是按照顺序加载的
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---
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**历时一天,终于搞定了 编译真的是漫长的过程=\_=**
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