I create my web sites by writing the code in plain text files on my W10 desktop and then loading them to my website which is located on a commercial server. I use an FTP tool to do this. I am now looking at using the Stripe payment system. This asks me to install the Stripe libraries on the server with the aid of the Composer dependency manager. Although I appreciate the function of Composer I seem to have a blind spot as to how to get it into action. I assume that somehow I have to get the composer file on to the server but I cannot see how to do this. I have composer-setup.exe in my Desktop \Downloads but I do not see how to get Composer onto the server and working. [ I assume that when I achieve this after following your advice(!) I will have something like composer.php alongside index.php or in some folder. Is this right ? ]
You would typically install Composer from the command-line on the server. I'm not sure, but you probably even need root permission to install it.
Do you have only FTP access, and no shell access?
OK Thank you