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Tmux is a "terminal multiplexer", it enables a number of terminals to be accessed and controlled from a single terminal.
    
If you use Debian/Ubuntu, you can just run apt-get install tmux, and voila. 
  
Since the title was about centos 7, then do the following step to install tmux.
  (1). tmux has a library dependency on libevent which, of course, isn’t installed by default. 
    $ wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
    $ tar xzvf libevent-2.0.21-stable.tar.gz
    $ cd libevent-2.0.21-stable
    $ ./configure && make

yaowenqiang

# Install tmux 3.0a on Centos

# install deps
sudo yum install -y gcc kernel-devel make ncurses-devel

# DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL
curl -LOk https://github.com/libevent/libevent/releases/download/release-2.1.11-stable/libevent-2.1.11-stable.tar.gz
tar -xf libevent-2.1.11-stable.tar.gz
cd libevent-2.1.11-stable
./configure --prefix=/usr/local

yaowenqiang

alias kc='kubectl'
alias kclf='kubectl logs --tail=200  -f'
alias kcgs='kubectl get service -o wide'
alias kcgd='kubectl get deployment -o wide'
alias kcgp='kubectl get pod -o wide'
alias kcgn='kubectl get node -o wide'
alias kcdp='kubectl describe pod'
alias kcds='kubectl describe service'
alias kcdd='kubectl describe deployment'
alias kcdf='kubectl delete -f'

yaowenqiang

# Install tmux 2.8 on Centos

# install deps
yum install gcc kernel-devel make ncurses-devel

# DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL
curl -LOk https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz
tar -xf libevent-2.1.8-stable.tar.gz
cd libevent-2.1.8-stable
./configure --prefix=/usr/local

yaowenqiang

A complete overview of PHP session handler life cycle

The purpose of this document is to provide a complete overview of the PHP session handler life cycle updated to version 7.0 or above. In particular, I want to emphasize what methods and in what order are called when the native PHP functions are used for session management.
I created this document because the information on the web and the official documentation are very superficial on this topic, in particular on what concerns the implementation of a safe and stable session handler.

yaowenqiang

This page provides a full overview of PHP's SessionHandler life-cycle - this was generated by a set of test-scripts, in order to provide an exact overview of when and what you can expect will be called in your custom SessionHandler implementation.

Each example is a separate script being run by a client with cookies enabled.

To the left, you can see the function being called in your script, and to the right, you can see the resulting calls being made to a custom session-handler registed using session_set_save_handler().

yaowenqiang

source /usr/local/go/src/pkg/runtime/runtime-gdb.py
b main.main

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[PHP]

;;;;;;;;;;;;;;;;;;;
; About php.ini   ;
;;;;;;;;;;;;;;;;;;;
; PHP's initialization file, generally called php.ini, is responsible for
; configuring many of the aspects of PHP's behavior.

; http://php.net/engine
engine = On

yaowenqiang

$ git clone git://github.com/alanxz/rabbitmq-c.git
$ cd rabbitmq-c
$ git submodule init
$ git submodule update
$ yum install libtool
$ yum install autoconf
$ yum install automake
$ yum install php-pear
$ yum install php-devel
$ make

yaowenqiang

sudo yum install epel-release
sudo yum install gcc-c++ ncurses-devel ruby ruby-devel lua lua-devel luajit luajit-devel ctags python python-devel python3 python3-devel tcl-devel perl perl-devel perl-ExtUtils-ParseXS perl-ExtUtils-XSpp perl-ExtUtils-CBuilder perl-ExtUtils-Embed cscope gtk3-devel libSM-devel libXt-devel libXpm-devel libappstream-glib libacl-devel gpm-devel

yum list installed | grep -i vim
# sudo yum erase vim-common.x86_64 vim-enhanced.x86_64 vim-filesystem.x86_64 vim-X11

# sudo depends on vim-minimal
sudo rpm -e --nodeps vim-minimal

sudo ln -s /usr/bin/python3.6 python3