Error Handling Php Try Catch
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Related Extensions Web Services Windows Only Extensions XML Manipulation Keyboard Shortcuts? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search(current page) / Focus search box Extending Exceptions » « Errors in PHP 7 PHP Manual Language Reference Change language: English Brazilian Portuguese Chinese (Simplified) French German Japanese Korean Romanian Russian Spanish Turkish Other Edit Report a Bug Exceptions Table of ContentsExtending Exceptions PHP 5 has an exception model similar to that of other programming languages. An exception can be thrown, and caught ("catched") within PHP. Code may be surrounded in a try block, to facilitate the catching of potential exceptions. Each try must have at least one corresponding catch or finally block. The thrown object must be an instance of the Exception class or a subclass of Exception. Trying to throw an object that is not will result in a PHP Fatal Error. catch Multiple catch blocks can be used to catch different c
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Error Handling Python
us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is error handling sql a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to efficiently use try…catch blocks in PHP up vote 28 down vote http://php.net/manual/en/language.exceptions.php favorite 14 I have been using try..catch blocks in my PHP code, but I'm not sure if I've been using them correctly. For example, some of my code looks like: try { $tableAresults = $dbHandler->doSomethingWithTableA(); $tableBresults = $dbHandler->doSomethingElseWithTableB(); } catch (Exception $e) { return $e; } So I'm grouping multiple database operations in the same try/catch block because if any exception occurs in any of the transaction, I will be http://stackoverflow.com/questions/17549584/how-to-efficiently-use-try-catch-blocks-in-php able to handle it. I'm doing it that way because I think that it's more readable and efficient than: try { $tableAresults = $dbHandler->doSomethingWithTableA(); } catch (Exception $e) { return $e; } try { $tableBresults = $dbHandler->doSomethingWithTableB(); } catch (Exception $e) { return $e; } Although, I'm not sure if what I'm doing is a good practice or just a lazy way to catch exceptions. My assumption is that only if an exception requires special handling, it should have its own try/catch block, otherwise grouping them in the same try/catch should be ok. So my question(s) are: Is there any advantage of using try/catch blocks per database transaction? or can I still group multiple database transactions in the same try/catch block with no problem at all? Is it ok to nest try/catch blocks? Thanks! EDIT The return statement was primarily for demonstration purposes only, but I'm also using returns in catch() because I'm making an AJAX request to that method, and Javascript is expecting a JSON object, then if an exception occurs I return an empty JSON encoded array. I just thought that It wouldn't add any value to put specific code in my example. php exception-handling try-catch share|improve this question edited May 21 '15 at 8:34 Moh
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here may not be relevant, complete or secure. Code might not be complete or obsoleted, and even my current vision might have (completely) changed on the subject. So please do read further, but use it with caution. « Custom symfony2 config loader How Saffire doesn't do things different » Posted on 12 Feb 2013 Tagged with: [ catch ] [ exception ] [ finally ] [ PHP ] [ try ] Exception handling is available in PHP since version 5. It allows you to have a more fine-grained control over code when things go wrong ie, when exceptions occur. But since PHP 5.5, exception handling has finally evolved into what it should have been from the beginning: the finally part has been implemented. Let’s start with a simple example on what finally actually does: try { print "this is our try block\n"; throw new Exception(); } catch (Exception $e) { print "something went wrong\n"; } finally { print "This part is always executed\n"; } /* Output: this is our try block something went wrong This part is always executed */ Whether or