centos 升级php7？centos6怎么升级到7
Centos7如何安装PHP7最新版
方法一、简单安装(通过yum)
1.安装epel-release
rpm-ivh
2.安装PHP7的rpm源
rpm-Uvh
3.安装PHP7
yum install php70w
方法二、编译安装
1.下载php7
wget-O php7.tar.gz
2.解压php7
tar-xvf php7.tar.gz
3.进入php目录
cd php-7.0.4
4.安装依赖包
#直接复制下面一行(不包括本行)
yum install libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel
5.编译配置(如果出现错误，基本都是上一步的依赖文件没有安装所致)
嫌麻烦的可以从这一步起参考PHP官方安装说明：
./configure\
--prefix=/usr/local/php\
--with-config-file-path=/etc\
--enable-fpm\
--with-fpm-user=nginx\
--with-fpm-group=nginx\
--enable-inline-optimization\
--disable-debug\
--disable-rpath\
--enable-shared\
--enable-soap\
--with-libxml-dir\
--with-xmlrpc\
--with-openssl\
--with-mcrypt\
--with-mhash\
--with-pcre-regex\
--with-sqlite3\
--with-zlib\
--enable-bcmath\
--with-iconv\
--with-bz2\
--enable-calendar\
--with-curl\
--with-cdb\
--enable-dom\
--enable-exif\
--enable-fileinfo\
--enable-filter\
--with-pcre-dir\
--enable-ftp\
--with-gd\
--with-openssl-dir\
--with-jpeg-dir\
--with-png-dir\
--with-zlib-dir\
--with-freetype-dir\
--enable-gd-native-ttf\
--enable-gd-jis-conv\
--with-gettext\
--with-gmp\
--with-mhash\
--enable-json\
--enable-mbstring\
--enable-mbregex\
--enable-mbregex-backtrack\
--with-libmbfl\
--with-onig\
--enable-pdo\
--with-mysqli=mysqlnd\
--with-pdo-mysql=mysqlnd\
--with-zlib-dir\
--with-pdo-sqlite\
--with-readline\
--enable-session\
--enable-shmop\
--enable-simplexml\
--enable-sockets\
--enable-sysvmsg\
--enable-sysvsem\
--enable-sysvshm\
--enable-wddx\
--with-libxml-dir\
--with-xsl\
--enable-zip\
--enable-mysqlnd-compression-support\
--with-pear\
--enable-opcache
6.正式安装
make make install
7.配置环境变量
vi/etc/profile
在末尾追加
PATH=$PATH:/usr/local/php/bin
export PATH
执行命令使得改动立即生效
source/etc/profile
8.配置php-fpm
cp php.ini-production/etc/php.ini
cp/usr/local/php/etc/php-fpm.conf.default/usr/local/php/etc/php-fpm.conf
cp/usr/local/php/etc/php-fpm.d/www.conf.default/usr/local/php/etc/php-fpm.d/www.conf
cp sapi/fpm/init.d.php-fpm/etc/init.d/php-fpm
chmod+x/etc/init.d/php-fpm
9.启动php-fpm
/etc/init.d/php-fpm start
centos7安装php8,实现php7和php8同时运行
在 CentOS7系统上安装 PHP8，实现与原有 PHP7并存运行的过程，确保系统稳定与程序兼容性。安装步骤如下：
1.进入目录，下载 PHP8.1.25源码。
2.解压源码，准备编译环境。
3.进入解压目录，启动编译过程。
在配置过程中遇到错误，通过先执行特定命令解决，完成编译。
经过一系列配置，最终完成 PHP8的安装。
4.配置 PHP-FPM服务。
5.使用 systemctl启动 PHP-FPM服务，并修改服务文件为 php8-fpm。
创建 php8-fpm.service文件于目录/usr/lib/systemd/system/。
配置文件内容并保存，运行命令启动服务。
6.在 php-fpm.conf中进行其他相关配置。
在网站 vhost配置中，如 nginx配置中，基于两种方式监听：基于 unix socket或基于 tcp。
基于 unix socket通信方式，设置 listen=/dev/shm/php8-cgi.sock，配置 fastcgi_pass unix:/dev/shm/php8-cgi.sock，实现应用层内部通信，速度较快。
基于 tcp监听方式，设置 listen= 127.0.0.1:9008，配置 fastcgi_pass 127.0.0.1:9008，端口需与 nginx配置相匹配。
7.启动 php8-fpm服务，重新运行 nginx，实现通信。
8.添加快捷方式到/usr/bin中，生成别名为 php8的快捷方式，便于使用。
9.添加对两种监听方式的说明与对比：
unix socket监听方式：优点在于速度快、资源消耗少；缺点为稳定性较低，存在数据传输问题。适合在同一台机器上的 nginx和 php-fpm服务。
tcp监听方式：优点为能保证数据的正确性，适合跨服务器场景；缺点为性能不如 unix socket。
通过上述步骤，成功在 CentOS7上安装并配置 PHP8，实现了与 PHP7的并存运行，满足了不同场景下的使用需求。
阿里云上的centos 7.2怎么yum安装php 5.6
因之前通过网易的 centos镜像，将阿里云的 centos升级到最新版了，乘自己的项目尚未开始正式开发，遂将所有的相应环境都升级到最高。
查看 centos版本：
[root@iZ23d~]# cat/etc/centos-release
CentOS Linux release 7.2.1511(Core)
1、删除之前的 php版本：
[root@iZ23d~]# yum remove php* php-common
Loaded plugins: langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
No Match for argument: php-5.4.16
No Match for argument: php-5.4.16.tar.gz
No Match for argument: php-7.0.1RC1
No Match for argument: php-7.0.1RC1.tar.gz
No Match for argument: phpMyAdmin-4.4.0.tar.gz
No Match for argument: php-common
No Packages marked for removal
2、rpm安装 Php7相应的 yum源：
[root@iZ23d~]# rpm-Uvh
Retrieving
warning:/var/tmp/rpm-tmp.LhJKKR: Header V4 RSA/SHA1 Signature, key ID 62e74ca5: NOKEY
Preparing...################################# [100%]
package webtatic-release-7-3.noarch is already installed
3、直接yum安装php7：
[root@iZ23d~]# yum install php70w
Loaded plugins: langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Resolving Dependencies
--> Running transaction check
。。。【省略】
Warning: RPMDB altered outside of yum.
Installing: php70w-common-7.0.0-1.w7.x86_64 1/3
Installing: php70w-cli-7.0.0-1.w7.x86_64 2/3
Installing: php70w-7.0.0-1.w7.x86_64 3/3
Verifying: php70w-7.0.0-1.w7.x86_64 1/3
Verifying: php70w-common-7.0.0-1.w7.x86_64 2/3
Verifying: php70w-cli-7.0.0-1.w7.x86_64 3/3
Installed:
php70w.x86_64 0:7.0.0-1.w7
Dependency Installed:
php70w-cli.x86_64 0:7.0.0-1.w7 php70w-common.x86_64 0:7.0.0-1.w7
Complete!
4、检查 php版本：
[root@iZ23d~]# php-v
PHP 7.0.0(cli)(built: Dec 2 2015 20:42:32)( NTS)
Copyright(c) 1997-2015 The PHP Group
Zend Engine v3.0.0, Copyright(c) 1998-2015 Zend Technologies
[root@iZ23d2e6hoqZ~]#
以上显示安装成功！
5、重启 Apache，查看 phpinfo:
[root@iZ23d~]# systemctl restart httpd.service
检查phpinfo:
PHP Version 7.0.0
SystemLinux iZ23d 3.10.0-229.11.1.el7.x86_64#1 SMP Thu Aug 6 01:06:18 UTC 2015 x86_64
Build DateDec 2 2015 20:43:38
Server APIApache 2.0 Handler
Virtual Directory Supportdisabled
Configuration File(php.ini) Path/etc
Loaded Configuration File/etc/php.ini
Scan this dir for additional.ini files/etc/php.d
Additional.ini files parsed/etc/php.d/bz2.ini,/etc/php.d/calendar.ini,/etc/php.d/ctype.ini,/etc/php.d/curl.ini,/etc/php.d/exif.ini,/etc/php.d/fileinfo.ini,/etc/php.d/ftp.ini,/etc/php.d/gettext.ini,/etc/php.d/gmp.ini,/etc/php.d/iconv.ini,/etc/php.d/json.ini,/etc/php.d/phar.ini,/etc/php.d/shmop.ini,/etc/php.d/simplexml.ini,/etc/php.d/sockets.ini,/etc/php.d/tokenizer.ini,/etc/php.d/xml.ini,/etc/php.d/zip.ini
PHP API20151012
PHP Extension20151012
Zend Extension320151012
Zend Extension BuildAPI320151012,NTS
PHP Extension BuildAPI20151012,NTS
Debug Buildno
Thread Safetydisabled
Zend Signal Handlingdisabled
Zend Memory Managerenabled
Zend Multibyte Supportdisabled
IPv6 Supportenabled
DTrace Supportenabled
Registered PHP Streamshttps, ftps, compress.zlib, php, file, glob, data, http, ftp, compress.bzip2, phar, zip
Registered Stream Socket Transportstcp, udp, unix, udg, ssl, sslv3, sslv2, tls, tlsv1.0, tlsv1.1, tlsv1.2
Registered Stream Filterszlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, bzip2.*, convert.iconv.*
This program makes use of the Zend Scripting Language Engine:
Zend Engine v3.0.0, Copyright(c) 1998-2015 Zend Technologies
Configuration
apache2handler
Apache VersionApache/2.4.6(CentOS)
Apache API Version20120211
Server Administratorxxxxxx@xxxxxx.com
Hostname:Portxxxx.xxxxx.xxx:0
User/Groupapache(48)/48
Max RequestsPer Child: 0- Keep Alive: on- Max Per Connection: 100
TimeoutsConnection: 60- Keep-Alive: 15
Virtual ServerYes
Server Root/etc/httpd
Loaded Modulescore mod_so http_core mod_access_compat mod_actions mod_alias mod_allowmethods mod_auth_basic mod_auth_digest mod_authn_anon mod_authn_core mod_authn_dbd mod_authn_dbm mod_authn_file mod_authn_socache mod_authz_core mod_authz_dbd mod_authz_dbm mod_authz_groupfile mod_authz_host mod_authz_owner mod_authz_user mod_autoindex mod_cache mod_cache_disk mod_data mod_dbd mod_deflate mod_dir mod_dumpio mod_echo mod_env mod_expires mod_ext_filter mod_filter mod_headers mod_include mod_info mod_log_config mod_logio mod_mime_magic mod_mime mod_negotiation mod_remoteip mod_reqtimeout mod_rewrite mod_setenvif mod_slotmem_plain mod_slotmem_shm mod_socache_dbm mod_socache_memcache mod_socache_shmcb mod_status mod_substitute mod_suexec mod_unique_id mod_unixd mod_userdir mod_version mod_vhost_alias mod_dav mod_dav_fs mod_dav_lock mod_lua prefork mod_proxy mod_lbmethod_bybusyness mod_lbmethod_byrequests mod_lbmethod_bytraffic mod_lbmethod_heartbeat mod_proxy_ajp mod_proxy_balancer mod_proxy_connect mod_proxy_express mod_proxy_fcgi mod_proxy_fdpass mod_proxy_ftp mod_proxy_http mod_proxy_scgi mod_proxy_wstunnel mod_ssl mod_systemd mod_cgi mod_perl mod_php7
以上显示 php7安装成功！
