1：下载php7.4源码

wget https://www.php.net/distributions/php-7.4.12.tar.gz

2:解压

tar  zxvf php-7.4.12.tar.gz

3:安装php依赖包

cd php-7.4.12

yum install libxml2-devel sqlite-devel libcurl-devel oniguruma-devel libpng-devel libjpeg-devel freetype-devel libzip-devel openssl-devel -y

4:编译

./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-mhash --with-openssl --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-iconv --with-zlib --enable-inline-optimization --disable-debug --disable-rpath --enable-shared --enable-bcmath --enable-shmop --enable-sysvsem --enable-gd --with-jpeg --with-freetype --enable-mbregex --enable-mbstring --enable-ftp --enable-pcntl --enable-sockets --enable-soap --without-pear --with-gettext --enable-session --with-curl  --enable-opcache --enable-fpm --with-fpm-user=php --with-fpm-group=php --without-gdbm --enable-fast-install --disable-fileinfo

5：编译没问题就开始make &make install 。有问题根据错误提示自行百度解决。

6.复制相关文件到php安装目录

cp php.ini-production /usr/local/php/etc/php.ini 复制配置文件到etc目录

cd /usr/local/php/etc

cp php-fpm.conf.default php-fpm.conf  

cd /usr/local/php/etc/php-fpm.d

cp www.conf.default www.conf

7：添加用户和用户组

groupadd www

useradd -g www www

8.修改www.conf文件 将user和group改成www

9.将php添加到系统环境变量中

vim /etc/profile.d/php.sh

export PATH=$PATH:/usr/local/php/bin

编辑完后保存(esc shift+:  wq)，然后重新加载source

source  /etc/profile.d/php.sh

10.启动php-fpm

/usr/local/php/sbin/php-fpm

11.查看php版本以及安装的扩展