upgrade laravel 5.7 to 7.0 code example
Example: laravel 7 upgrade
$>which composer
/usr/local/bin/composer
$>php -d memory_limit=512M /usr/local/bin/composer update
...
$>which composer
/usr/local/bin/composer
$>php -d memory_limit=512M /usr/local/bin/composer update
...