If you want to only try x times, you can replace the retry with a int with a startvalue of number of tries first. If some exception occurs, it will run the catch and finally block, and then loop back up and run the try block again. What should be in a try block and where to return my values. In doing so, should a try.catch be placed inside it or wrapping it Is it even necessary to include a try. As long as the last line of the try block gets run ( retry false ), it will carry on. Can I return false from a try and catch instead of throwing exception. Its much more beneficial if you are using objects that throw exceptions so the client code knows something went wrong, but the object itself doesnt handle how to handle them. And let's say that I want to create an application resilient to these problems where it is more important that the query eventually gets executed than to respond with a fancy error message. We all use DB::transaction() for multiple insert queries. The try/catch is just a complicated if statement, and I dont see much use for it if youre trying to use instead of an if statement. Hot Network Questions Which IP address does a browser use if there’s more than one for the same URL Can I use event data from previous calls in a batch. We can focus on the database server in this here question. Unreliable in a sense that at any point of time an aspect of the environment may suddenly become unavailable for a short period of time. If you throw exceptions to give validation notices you need to catch those in a different layer (and you're probably doing it wrong if you use exceptions for that).Let's say I have a Laravel app which isn't a classic web site and that this app is running in an unreliable environment. something like AppControllersConnectionException), which will never exist. So you see that while your if statement is checking for a condition that you are anticipating, the try catch block will detect anything that goes wrong, even those things that you dont anticipate. The user must not be interested what went wrong other than it just didn't work out and your program crashed. Otherwise, youre actually trying to catch something in the current namespace named ConnectionException (i.e. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. You can then write code to return the internal server error because an exception signals an exceptional case so it normally is an 500 internal server error. $controllerService->handleControllerException($e) block, and errors are created via a throw statement, but there is significant variation. This is best solved with a frontend controller that is able to catch all uncatched exceptions: execute($request) If exceptions are thrown, the catch-blocks will rectify the errors encountered (usually prompting for correct input).
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