The Value controller is used to get and set system wide variables. These variables are stored in a MySQL table, and are used to define system behaviour.

The Value::get function takes two parameters:
$name - The name of the value to get $default - An optional default value should the value not be defined.

If the value has not been defined in the table yet, the $default variable will be used to record the value in the table.

Important: As the default value can be used to add a value to the system, care should be taken to always pass down the same default value across the system.

if (Value::get('clean_urls', false)) {
    //More Code
}

//Wrong code
if (Value::get('clean_urls', true)) {
}

//Rather use
if (!Value::get('clean_urls', false)) {
}