本篇文章由php8教程栏目给大家详细介绍如何一步步搭建php8环境，希望对大家有所帮助。
一、下载
1、https://www.php.net/distributions/php-8.0.0.tar.gz下载到本地，文件传输上传到 /usr/local/src/
2、wget -P /usr/local/src/ https://www.php.net/distributions/php-8.0.0.tar.gz
二、解压、编译、安装
1、解压缩
1 2 3 | > cd /usr/local/src/
> tar xzf php-8.0.0.tar.gz
> cd php-8.0.0
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2、配置编译参数，参考https://www.php.net/manual/zh... 选择自己需要的选项
1 | ./configure --prefix=/usr/local/php8 --with-config-file-path=/usr/local/php8/etc --with-fpm-user=www --with-fpm-group=www --with-curl --with-openssl --with-mysqli --with-pdo-mysql --with-iconv --with-mhash --with-zlib --enable-mbstring --enable-gd --enable-gd-jis-conv --enable-sockets --enable-fpm --enable- --enable-xml --enable-pdo --enable-cli --enable-pcntl --enable-soap --enable-opcache --enable-fileinfo --disable-rpath --enable-mysqlnd --with-zip --enable-simplexml --with-libxml --with-sqlite3 --with-pdo-sqlite --enable-phar --enable-tokenizer --enable-cgi
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问题1：
1 2 3 4 5 6 7 | configure: error: Package requirements (libxml-2.0 >= 2.9.0) were not met:
Package 'libxml-2.0', required by 'virtual:world', not found
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively, you may set the environment variables LIBXML_CFLAGS
and LIBXML_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
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问题1解决：
1 | > yum install libxml2-devel
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问题2：
1 | configure: error: Package requirements (sqlite3 > 3.7.4) were not met:
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问题2解决：
1 | > yum install sqlite-devel
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问题3：
1 | configure: error: Package requirements (libcurl >= 7.29.0) were not met:
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问题3解决：
1 | > yum install libcurl-devel
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问题4：
1 | configure: error: Package requirements (libpng) were not met:
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问题4解决：
1 | > yum install libpng libpng-devel
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问题5：
1 | configure: error: Package requirements (oniguruma) were not met:
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问题5解决：
1 2 3 4 5 | > cd /usr/local/src/
> wget http:
> rpm -ivh liboniguruma5-6.9.6-alt1.x86_64.rpm
> wget http:
> rpm liboniguruma-devel-6.9.6-alt1.x86_64.rpmcli
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问题6：
1 | configure: error: Package requirements (libzip >= 0.11 libzip != 1.3.1 libzip != 1.7.0) were not met:
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问题6解决：
1 | > yum install libzip libzip-devel
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配置编译参数成功
1 2 3 4 5 6 7 8 9 | +--------------------------------------------------------------------+
| License: |
| This software is subject to the PHP License, available in this |
| distribution in the file LICENSE. By continuing this installation |
| process, you are bound by the terms of this license agreement. |
| If you do not agree with the terms of this license, you must abort |
| the installation process at this point. |
+--------------------------------------------------------------------+
Thank you for using PHP.
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3、编译源码
> make -j2 # 这里是依赖系统cpu核心数进行编译，对性能有一定提升，通常利用核心数不要超过一半，
4、安装
安装成功
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | [root@54skyer php-8.0.0]# make install
Installing shared extensions: /usr/local/php8/lib/php/extensions/no-debug-non-zts-20200930/
Installing PHP CLI binary: /usr/local/php8/bin/
Installing PHP CLI man page: /usr/local/php8/php/man/man1/
Installing PHP FPM binary: /usr/local/php8/sbin/
Installing PHP FPM defconfig: /usr/local/php8/etc/
Installing PHP FPM man page: /usr/local/php8/php/man/man8/
Installing PHP FPM status page: /usr/local/php8/php/php/fpm/
Installing phpdbg binary: /usr/local/php8/bin/
Installing phpdbg man page: /usr/local/php8/php/man/man1/
Installing PHP CGI binary: /usr/local/php8/bin/
Installing PHP CGI man page: /usr/local/php8/php/man/man1/
Installing build environment: /usr/local/php8/lib/php/build/
Installing header files: /usr/local/php8/include/php/
Installing helper programs: /usr/local/php8/bin/
program: phpize
program: php-config
Installing man pages: /usr/local/php8/php/man/man1/
page: phpize.1
page: php-config.1
/usr/local/src/php-8.0.0/build/shtool install -c ext/phar/phar.phar /usr/local/php8/bin/phar.phar
ln -s -f phar.phar /usr/local/php8/bin/phar
Installing PDO headers: /usr/local/php8/include/php/ext/pdo/
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5、添加环境变量
1 2 3 4 5 6 7 8 9 10 11 | > vim /etc/profile # 在文件末尾加入
# PATH=$PATH:/usr/local/php8/bin/
# export PATH
# :wq 保存并退出
> source /etc/profile # 立刻生效配置
> php -v # 获得如下信息
php -v
PHP 8.0.0 (cli) (built: Dec 15 2020 02:46:59) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.0-dev, Copyright (c) Zend Technologies
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6、获取默认配置
1 2 3 4 5 6 7 8 | > cp /usr/local/src/php-8.0.0/php.ini-production /usr/local/php8/etc/php.ini
> cp /usr/local/php8/etc/php-fpm.conf.default /usr/local/php8/etc/php-fpm.conf
> cp /usr/local/php8/etc/php-fpm.d/www.conf.default /usr/local/php8/etc/php-fpm.d/www.conf
> cp /usr/local/src/php-8.0.0/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
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7、开机自启动
设置命令可被执行
1 | > chmod +x /etc/init.d/php-fpm # 添加可执行权限
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检验自启动脚本
1 2 3 4 5 6 7 8 9 10 11 12 13 | > service php-fpm start # 检验服务启动
> service php-fpm stop # 检验服务关闭
> chkconfig php-fpm on # 设置开机自动执行php-fpm开机自启动脚本
> reboot # 重启，ssh重连
# 重启后
[root@54skyer ~]# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 1097/nginx: master
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1061/sshd
tcp 0 0 0.0.0.0:16379 0.0.0.0:* LISTEN 1090/redis-server 0
tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 1083/php-fpm: maste
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7、额外说明
关于配置文件的一些说明
php-fpm.conf是PHP-FPM特有的配置文件
php.ini是所有php模式中必须的配置文件
两者的区别是，php-fpm.conf是PHP-FPM进程管理器的配置文件，php.ini是PHP解析器的配置文件
有的PHP版本的配置文件路径中还有/fpm.d/www.conf配置文件
这是php-fpm.conf配置的文件的扩展文件，可以打开php-fpm.conf文件查看
我们可以使用php-fpm.conf配置慢日志
我们是可以开启慢日志功能的。
1 2 | slowlog = /usr/local/var/log/php-fpm.log.slow
request_slowlog_timeout = 5s
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