In this chapter we discuss about categories included in the configuration.
environment variables are variables which declared in the .env file and which have parameter required for configuration.
Note : A file with file name '.env.example' is present there ,which is nothing but it is a copy of .env file .
environment variables declared in the .env file are accessed by env-helper functions which use to call the respective parameter. when application receives a request from the user end then all these variables are listed into $_ENV global variable. You can access the environment variable as shown below −
'env' => env('APP_ENV', 'production'),
In app.php file env-helper function are called which is included in the config folder.
In config folder we have many default file for different purpose :
For example -
The database of your application can be configured from config/database.php file. You can set configuration parameters that can be used by different databases and you can also set the default one to use.
'connections' => [
'sqlite' => [
'driver' => 'sqlite',
'url' => env('DATABASE_URL'),
'database' => env('DB_DATABASE', database_path('database.sqlite')),
'prefix' => '',
'foreign_key_constraints' => env('DB_FOREIGN_KEYS', true),
'mysql' => [
'driver' => 'mysql',
'url' => env('DATABASE_URL'),
'host' => env('DB_HOST', '127.0.0.1'),
'port' => env('DB_PORT', '3306'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'unix_socket' => env('DB_SOCKET', ''),
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
'prefix' => '',
'prefix_indexes' => true,
'strict' => true,
'engine' => null,
'options' => extension_loaded('pdo_mysql') ? array_filter([
PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
]) : ,
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