I want to test some Laravel applications on my basic shared host.
Currently I just upload my complete application including the vendor files, however this takes quit
Check if your shared hosting provider has console
feature in their CP which allows to run shell commands. Maybe you'll be able to run commands from there.
As alternative, you could right your own artisan runner and call artisan commands from the code:
Artisan::call('migrate');
To run composer command from PHP code, use shell_exec:
shell_exec('composer update');