PHP

clear composer cache

composer clearcache
//Then autoload composer
composer dump-autoload

composer remove cache

composer clearcache

#You can also use 

composer clear-cache

#which is an alias for clearcache.
 

composer clear cache

$ composer clearcache

composer require no cache

composer require VENDOR/PACKAGE --no-cache

Composer clear cache

rm -rf ~/.composer/cache

clear cache without using composer in laravel 8

Route::get('/clear-cache', function() {
    $exitCode = Artisan::call('cache:clear');
    // return what you want
});