June 2005
Intermediate to advanced
794 pages
18h 27m
German
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9.4 Klassenabhängiges Exception-Handling
Problem
Sie möchten einen Codeblock schützen, in dem verschiedene Klassen von Exceptions auftreten können. Sie möchten das Exception-Handling von der jeweiligen Klasse abhängig machen.
Lösung
Verwenden Sie mehrere catch-Blöcke:
class EPriceException extends Exception { public $price; // Preis für den catch-Block erhalten. public function _ _construct($message, $code, $price) { parent::_ _construct($message, $code); $this->price = $price; } } class EPriceNotANumberException extends EPriceException { public function _ _construct($price) { parent::_ _construct("Price is not a number", 1, $price); } } class EPriceNegativeException extends EPriceException { public function _ _construct($price) { parent::_ _construct("Price ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.