推荐（免费）：PHP7
首先安装（安装过了就不用安装了）：
mysql：https://blog.csdn.net/qq_40200087/article/details/89479137
nginx：https://blog.csdn.net/qq_40200087/article/details/89504980
下载：https://www.php.net/downloads.php#v7.3.4
开发工具：
yum groupinstall "Development Tools" -y
安装依赖：
yum install libxml2-devel -yyum install bzip2 bzip2-devel -y yum install curl-devel -yyum install libjpeg-devel -yyum install libpng libpng-devel -yyum install freetype-devel -yyum install libxslt-devel -y yum install libzip-devel -y或者合到一起安装yum install libxml2-devel bzip2 bzip2-devel curl-devel libjpeg-devel libpng libpng-devel freetype-devel libxslt-devel libzip-devel -y
解压：
tar -zxvf php-xxx.tar.gz -C /usr/local/
进入到/usr/local 并修改名字
cd /usr/localmv php-7.3.xxx php7.3
编译
cd /usr/local/php7.3 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-fpm-user=mysql --with-fpm-group=mysql --with-curl --with-freetype-dir --with-gd --with-gettext --with-iconv-dir --with-kerberos --with-libdir=lib64 --with-libxml-dir --with-mysqli=mysqlnd --with-openssl --with-pcre-regex --with-pdo-mysql=mysqlnd --with-mysql=mysqlnd --with-pdo-sqlite --with-pear --with-png-dir --with-jpeg-dir --with-xmlrpc --with-xsl --with-zlib --with-bz2 --with-mhash --enable-fpm --enable-bcmath --enable-libxml --enable-inline-optimization --enable-mbregex --enable-mbstring --enable-opcache --enable-pcntl --enable-shmop --enable-soap --enable-sockets --enable-sysvsem --enable-sysvshm --enable-xml --enable-fpm
编译完成后是以下样子+--------------------------------------------------------------------+| 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.config.status: creating php7.specconfig.status: creating main/build-defs.hconfig.status: creating scripts/phpizeconfig.status: creating scripts/man1/phpize.1config.status: creating scripts/php-configconfig.status: creating scripts/man1/php-config.1config.status: creating sapi/cli/php.1config.status: creating sapi/fpm/php-fpm.confconfig.status: creating sapi/fpm/www.confconfig.status: creating sapi/fpm/init.d.php-fpmconfig.status: creating sapi/fpm/php-fpm.serviceconfig.status: creating sapi/fpm/php-fpm.8config.status: creating sapi/fpm/status.htmlconfig.status: creating sapi/phpdbg/phpdbg.1config.status: creating sapi/cgi/php-cgi.1config.status: creating ext/phar/phar.1config.status: creating ext/phar/phar.phar.1config.status: creating main/php_config.hconfig.status: executing default commandsconfigure: WARNING: unrecognized options: --with-mysql
安装：
make && make install
复制以下三个配置文件
cp php.ini-production /usr/local/php/etc/php.inicp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.confcp /usr/local/php/etc/php-fpm.d/www.conf.default /usr/local/php/etc/php-fpm.d/www.conf
设置php.ini
#注意：php的注释为 ; 如果设置前面有 ; ,请记得删除 ;vim /usr/local/php/etc/php.inimax_execution_time = 300max_input_time = 300memory_limit = 128Mpost_max_size = 16Mupload_max_filesize = 2Mdate.timezone = Asia/Shanghai
测试php是否安装成功
/usr/local/php/sbin/php-fpm -t
拷贝启动文件
cp /usr/local/php7.3/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
赋予执行权限
chmod 755 /etc/init.d/php-fpm
启动
service php-fpm start
查询是否启动成功
ps -ef |grep php-fpmroot 27332 1 0 08:51 ? 00:00:00 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)mysql 27333 27332 0 08:51 ? 00:00:00 php-fpm: pool wwwmysql 27334 27332 0 08:51 ? 00:00:00 php-fpm: pool wwwroot 27336 7898 0 08:51 pts/1 00:00:00 grep --color=auto php-fpm
配置 nginx可解析 .php文件
注意：fastcgi_pass 127.0.0.1:9000; 端口与/usr/local/php/etc/php-fpm.d/www.conf 里面的listen = 127.0.0.1:9000 配置要一样，不然无法解析vim /usr/local/nginx/conf/nginx.conf 修改server{} 这个里面的数据为： listen 80; server_name localhost; access_log /usr/local/nginx/logs/host.access.log; root /usr/local/nginx/html; index index.html index.htm index.php; location / { try_files $uri $uri/ /index.php?$args; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } location ~ \.php$ { expires -1s; try_files $uri =404; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi.conf; }测试是否解析成功：
在/usr/local/nginx/html中创建test.php，里面内容如下<?php phpinfo();?>执行 /usr/local/nginx/sbin/nginx浏览去输入 http://本机ip/test.php如果打开网页了则解析成功，如果是下载，则解析失败
遇到一个错误：
执行测试的时候遇到[root@jenkins-master etc]# /usr/local/php/sbin/php-fpm -tPHP: syntax error, unexpected '=' in Unknown on line 1[25-Apr-2019 08:36:28] ERROR: Unable to include /usr/local/php/etc/php-fpm.d/www.conf from /usr/local/php/etc/php-fpm.conf at line 23[25-Apr-2019 08:36:28] ERROR: failed to load configuration file '/usr/local/php/etc/php-fpm.conf'[25-Apr-2019 08:36:28] ERROR: FPM initialization failed最后发现是我执行./configue 的时候后面配置文件有一个少了个空格，我已修改上面的配置原因呢是因为 www.conf 里面的user配置错误
以上就是Php7.3安装步骤的知识。速戳>>知识兔学习精品课！