Detailed graphic explanation on how to smoothly upgrade PHP

php smooth upgrade

1.既然是平滑升级，是不需要宕机，也不需要停止服务，是不存在关闭网站的说法
2.而升级最后的重启，重启的是PHP加载的配置文件，不影响你当前运行的网站
3.php-fpm是属于FastCgi，一旦启动是在内存中跑的，和你编译升级的过程没有任何关系

System: centos6.8
php environment: php5.3.29
Upgrade version: php5.4.45
Download php address: http:// www.php.net/distributi...
Copy the php5.3.29 installation directory config.nice to php-5.4.25
[root@localhost php-5.4.45]# cp /php-5.3.29 /config.nice /usr/local/src/php-5.4.45
[root@localhost php-5.4.45]# cd php-5.4.45/
[root@localhost php-5.4.45] # ./config.nice
[root@localhost php-5.4.45]# make ZEND_EXTRA_LIBS='-liconv'
[root@localhost php-5.4.45]# make install

Upgrade After completion, it is recommended to execute the command:

You may want to add: /usr/local/php5/lib/php to your php.ini include_path
/usr/local/src/php-5.4.45/build/shtool install -c ext/phar/phar.phar /usr/local/php5/bin
ln -s -f /usr/local/php5/bin/phar.phar /usr/local/php5/bin/phar
Installing PDO headers:          /usr/local/php5/include/php/ext/pdo/

You may encounter errors during installation

## Reason: If "undefined reference to libiconv_open" occurs when installing PHP into the system '" and other error messages, it means that some environment variable values ​​​​are not captured properly in "./configure". The error occurred when creating "-o sapi/cli/php", and the iconv library parameter to be linked was not given.

The first solution: edit the Makefile around line 77: EXTRA_LIBS = ..... -lcrypt and add -liconv at the end, for example: EXTRA_LIBS = ..... -lcrypt -liconv and then try again Just make.
Second solution:
make ZEND_EXTRA_LIBS='-liconv'
ln -s /usr/local/lib/libiconv.so.2 /usr/lib64/

curl upgrade

Situation Description: curl uses yum to install the SSL version as NSS by default, and existing projects need to support OpenSSL.

Current curl version

phpinfo output information

Download the latest curl: https://curl.haxx.se/download/curl-7.54.1.tar.gz

Start upgrading:

[root@IM-web-03 html]# rpm -qa |grep curl
libcurl-devel-7.19.7-53.el6_9.x86_64
curl-7.19.7-53.el6_9.x86_64
libcurl-7.19.7-53.el6_9.x86_64
python-pycurl-7.19.0-9.el6.x86_64
[root@IM-web-03 html]# rpm -e curl-7.19.7-53.el6_9.x86_64 --nodeps
[root@IM-web-03 ~]# tar xvf curl-7.54.1.tar.gz
[root@IM-web-03 ~]# cd curl-7.54.1
[root@IM-web-03 curl-7.54.1]# ./configure  --prefix=/usr/local/curl --without-nss --with-ssl  #关闭NSS 开启OpenSSL
[root@IM-web-03 curl-7.54.1]# make
[root@IM-web-03 curl-7.54.1]# make install
[root@IM-web-03 curl-7.54.1]# rm -rf /usr/lib64/libcurl.so.4*                        #删除原有的动态库
[root@IM-web-03 curl-7.54.1]# ln -s /usr/local/curl/lib/libcurl.so.4* /usr/lib64/    #将新动态库放到对应位置
[root@IM-web-03 curl-7.54.1]# ldconfig                                               #刷新动态库
[root@IM-web-03 ~]# cd php-5.3.29/ext/curl/
[root@IM-web-03 curl]# /usr/local/php5/bin/phpize
[root@IM-web-03 curl]# ./configure --with-curl=/usr/local/curl/ --with-php-config=/usr/local/php5/bin/php-config
[root@IM-web-03 curl]# make
[root@IM-web-03 curl]# make install
[root@IM-web-03 curl]# vim /usr/local/php5/etc/php.ini
添加：extension="/usr/local/php5/lib/php/extensions/no-debug-non-zts-20090626/curl.so"
[root@IM-web-03 curl]# /etc/init.d/php-fpm restart

Check the version curl and PHPinfo version information after upgrading

##Recommended study: "

PHP video tutorial

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