How to setup php project on web hosting

I developed a simple php project with some simple framework and now I want to host it on server, the server is shared server and I do not have SSH access, so I have uploaded all the files via cPanel. For some reason the project isn't opening up on web browser correctly, can someone advise what should I do in this case?

On local machine the project displays correctly and all the pages can be navigated normally, but on web server I'm getting few errors, one related to autoloader. other error indicates platform incompatibility. I think this is related to Composer, but since this is shared hosting without SSH access how to I run composer update or composer dump-autoload.

On local machine:

I install the project using composer:

composer create-project quantum/project oraks

then installed the demo skeleton:

php qt install:demo

this was generated controllers, models, view files and other resources.

I can run the local server via:

php qt serve

all the pages are fully functional (posts, login, manage posts, etc.)

Now I have zipped all this stuff and uploaded to server (shared hosting) via cPanel, extracted it there, trying to access via browser to the domain and instead of displaying the web page I'm getting error:

Fatal error: Uncaught Error: Failed opening required '/vendor/autoload.php' in ../index.php on line 3

Environments:

• The framework I use is called: quantumphp
• My local environment is php 7.4
• The local server is php dev server (not Apache)
• The Server php is also 7.4
• But the web server on hosting is Apache

The .htaccess file (inside the public directory):

<IfModule mod_rewrite.c>
    RewriteEngine On

    # Removing trailing slash
    RewriteRule ^(.+)/$ http://%{HTTP_HOST}/$1 [R=301,L]

    # Handle Front Controller...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^(.*)$ /index.php/$1 [L]

</IfModule>

Please advise

This is a common issue with shared hosting. It is not dependent on the framework you are using, whether it's Laravel, Symfony, QuantumPHP, or another. Most frameworks follow a similar architecture, where the public folder contains index.php as the entry point, while the rest of the application code is placed one level up to prevent direct access from outside.

How you set up your project on shared hosting depends on your current infrastructure. If there are other projects in your public_html folder and you need to add one more, you might consider organizing them as subdomains. However, if this is your only website, the easiest solution is to place all application-related files outside public_html and move the contents of the public folder into public_html.

Additionally, ensure you upload the entire project, including the vendor folder and the .env file. If the .env file is missing, you can create one from .env.example. For QuantumPHP, you can generate the environment file using:

php qt core:env

Don't forget to generate the application key as well by running:

php qt core:key

This setup should work on shared hosting.