In Laravel, a Closure is an anonymous method which can be used as a callback function. It can also be used as a parameter in a function. It is possible to pass parameters into a Closure. It can be done by changing the Closure function call in the handle() method to provide parameters to it. A Closure can access the variables outside the scope of the variable.
Example
function handle(Closure $closure) {
$closure();
}
handle(function(){
echo ‘Interview Question’;
});
It is started by adding a Closure parameter to the handle() method. We can call the handle() method and pass a service as a parameter.
By using $closure(); in the handle() method, we tell Laravel to execute the given Closure which will then display the ‘Interview Question.’