June 2005
Intermediate to advanced
794 pages
18h 27m
German
Content preview from PHP 5 KochbuchBecome 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,
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.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.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.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.
12.11 Debug-Informationen und Fehler protokollieren
Problem
Sie möchten auf Informationen zugreifen, die Ihnen beim Debuggen von Datenbankproblemen helfen können. Beispielsweise möchten Sie beim Scheitern einer Abfrage sehen, welche Fehlermeldung die Datenbank zurückgibt.
Lösung
Untersuchen Sie mit DB::isError( ) das Ergebnis einer einzelnen Abfrage:
$sth = $dbh->query("SELECT aroma FROM zodiac WHERE element LIKE 'Feuer'");
DB::isError($sth) and print 'Datenbankfehler: '.$sth->getMessage();Mit DB::setErrorHandling( ) können Sie automatisierte Aktionen bei allen Datenbankfehlern veranlassen:
$dbh->setErrorHandling(PEAR_ERROR_PRINT);
$sth = $dbh->query("SELECT aroma FROM zodiac WHERE element LIKE 'Feuer'");Diskussion
Die meisten PEAR DB-Methoden geben ...
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,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.