.env file eke db eke details check karala balanna

DB_CONNECTION=mysql
DB_HOST=[your db host ]
DB_PORT=[your db port]
DB_DATABASE=[your db name]
DB_USERNAME=[your db username]
DB_PASSWORD=[your db passowrd]

EX:-

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=hyspecs
DB_USERNAME=GrAPEry
DB_PASSWORD=A2k%x8Ybcloob5Zb

@root Tutorial එකක් හෙම්ට සිංහලෙන් දාහන්කො බොක්ක

$grouped = $collection->groupBy('foreignkey_id');