Fully step by step guide how to debug php by vim+vdebug and xdebug

How to recompile vim from source code to enable a feature, such as enable python3
How to configure the vdebug for vim.
How to configure xdebug and work together with vdebug.

Verifying vim information by run: vim --version to see its output is +python3 or -python3, plus symbol means this feature enable, otherwise disabled. The default vim distribution disabled python3 on CentOS e17. So we have recompiled the vim from source code to enable it.
Get the vim source code from : https://github.com/vim/vim by below command:
```
git clone https://github.com/vim/vim.git
```
Then changing the directory into vim source code to run ./configure --enable-python3interp=yes, after that just type make command to compile it. if things done you can find the vim executable in src directory, so goes into src directory and run ./vim --version to check again. I believe the output will have +python3 as above picture. Now you can install the new vim to replace the default one.
Get the vdebug source code from https://github.com/vim-vdebug/vdebug.git by below command:
```
git clone https://github.com/vim-vdebug/vdebug.git`
```
Then copy/move its content in your ~/.vim/ directory. You should call :helptags ~/.vim/doc in vim to generate the necessary help tags, after that to run :help vdebug in vim, if you see something like below, that means your vdebug worked well with vim.

Add below code into your ~/.vimrc

let g:vdebug_options = {}
let g:vdebug_options["port"] = 7000

Configure your xdebug, you should add below code into your php.ini:
```
xdebug.remote_enable=1
xdebug.remote_host=127.0.0.1
xdebug.remote_port=7000
xdebug.remote_log="/tmp/xdebug.log"
```
NOTE: the xdebug's port must same with vdebug's as above.
To create a file phpinfo.php, and put below code in it.
```
<?php phpinfo(); ?>
```
Then to verify if xdebug configure worked well:
```
php phpinfo.php | grep xdebug
```
Open a php file by vim, then press F10 to set a break point to cursor line, then press F5 to let vdebug waiting for connection as below.
After that to access this php from browser(firefox/chrome), the xdebug should work now, and you will able to see debug status in the vim, more vdebug command you can type :help vdebug in vim.

If there is anything won't work for your case, please contact me freely.