> mkdir /opt/php //创建目录
> cd /opt/php //进入目录

> yum install openssl-devel gcc gcc-c++ wget make libxml2 libxml2-devel openssl openssl-devel curl-devel libjpeg-devel libpng-devel freetype-devel 
　　 bison autoconf sqlite-devel bzip2-devel libcurl-devel libicu-devel libxslt-devel libzip-devel libtidy-devel libtidy

> yum --enablerepo=PowerTools install oniguruma-devel

> wget https://www.php.net/distributions/php-8.0.6.tar.gz //下载php8
> tar vxf php-8.0.6.tar.gz //解压php压缩
> mv php-8.0.6 php8 //改名

> mkdir /opt/php/php //建立php安装目录
> mkdir /opt/php/etc //建立php配置目录

> ./configure --prefix=/opt/php/php/ --with-config-file-path=/opt/php/etc  --enable-fpm --enable-mysqlnd --enable-opcache --enable-pcntl --enable-mbstring --enable-soap --enable-zip --enable-calendar  --enable-bcmath 
　　--enable-exif --enable-ftp --enable-intl --with-mysqli  --with-pdo-mysql --with-openssl --with-curl --with-gd --with-gettext  --with-mhash --with-openssl --with-mcrypt --with-tidy --enable-wddx  --with-xmlrpc --with-zlib

+--------------------------------------------------------------------+
| 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.

> make 

> make install

> cd /opt/php/php/bin //进入php的安装目录下的bin
> ./php --version //查看版本号