thinkphp installation bootloader

thinkphp installation guide
If you still don’t know what installation guide is;
Then download the project first; put it in the php environment and run it and you will know;
Sample project: https://github.com/baijunyao/thinkphp-bjyadmin
Why does our program need an installation guide?
1. There is an installation guide; we don’t need to explain at length how to import sql files; how to change configuration items;
2. You can write some copyright or instructions for use;
3. You can do some tests on the environment first;

Here is a simple installation and guidance process tailor-made for thinkphp purely by hand;
Of course; more importantly; this installation can be independent of thinkphp;
If you want to use it in other projects; it can also be transplanted very conveniently;
Copy the directory; add a few lines of code and you’re done;

1: Import the installation boot program
/Public/install/
Put the install in the directory of your project;
The important thing inside is bjyadmin.sql. This is the database file;
And in the initial state; there is no install.lock file;

Two: Check whether /index.php<br> is installed // Check whether it is a new installation<br> if(file_exists("./Public/install") && !file_exists("./Public/install/install.lock")){<br> //Assembly and installation url<br> $url=$_SERVER['HTTP_HOST'].trim($_SERVER['SCRIPT_NAME'],'index.php').'Public/install/index.php';<br> // Use http:// domain name to access; avoid ./Public/install path compatibility and other errors<br> Header("Location:http://$url");<br>        die;<br> }In the entry file; added a piece of code to detect whether it is installed;

Three: Process
First; when accessing index.php;
The above code will be executed first; determine whether the /Public/install/install.lock file exists;
If it does not exist; it means it has not been installed yet;
It will be redirected to /Public/install/index.php to follow the installation program;
When the database account and password are entered as required and the installation is successful;
A /Public/install/install.lock file will be created;
When accessing the entry file again; the redirection will be skipped;
At the same time, the entered database account password will be written to the /Application/Common/Conf/db.php file;
This is also a summary of thinkphp’s directory structure design experience http://baijunyao.com/article/60 in this article;
The reason why you need to create a separate db.php file;

The installation process is written in the /Public/install/index.php file;
But I don’t plan to introduce it in this article, because... I am too lazy to write;
Detailed comments have been given inside; just look at the source code;