Php Automatic Error Handling
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Pdo::errmode_exception
Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 pdo error 00000 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error handling in automated script up vote 0 down vote favorite I have a script that is run via http://php.net/manual/en/book.errorfunc.php CRON. The script includes a selection of database calls which are saved into variables and used in calculations. The calculations are then saved into the database. As the code runs automatically, I am unsure how to approach errors. For example, if one of the variables couldn't be found, this may throw off another part of the script and make it fail. // Database call // Assign variables $variable1 = $row->record_1; $variable2 = '???'; http://stackoverflow.com/questions/38646272/error-handling-in-automated-script $variable3 = $row->record_3; // Database call using variables // WHERE col_1 = $variable2 // ERROR As this is an automated process, how best should you handle the errors? php cron share|improve this question asked Jul 28 at 20:37 ccdavies 661819 1 I guess you could wrap your database calls into error handling functions which can then email you when there is DB error or write them to error logs or something. –Maximus2012 Jul 28 at 20:39 1 Yep, i would prefer to write log files. Additionally you can send new log entries once per day via email to not flood your mailbox. –u-nik Jul 28 at 20:45 Thank you. Would you recommend that I complete all database calls / assign variables, then test for errors, then complete calculations? or just catch errors as the script runs through? –ccdavies Jul 28 at 20:48 Can you define 'errors'? If you know what values to expect for each variable, you can evaluate these variables before sending them to your database. If a variable is not set or holds an unexpected value, don't send it to your database (it may still be valid sql syntax) but log it to a logfile and check the logfile afterwards. –verhie Jul 28 at 20:53 add a comm
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack http://stackoverflow.com/questions/1900208/php-custom-error-handler-handling-parse-fatal-errors Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up PHP : Custom error handler - handling parse & fatal errors up vote 45 down vote error handling favorite 21 How can i handle parse & fatal errors using a custom error handler? php error-handling fatal-error parse-error share|improve this question asked Dec 14 '09 at 10:57 A.N.M. Saiful Islam 88441626 add a comment| 6 Answers 6 active oldest votes up vote 23 down vote accepted Simple Answer: You can't. See the manual: The following error types cannot be handled with a user defined function: E_ERROR, E_PARSE, E_CORE_ERROR, E_CORE_WARNING, E_COMPILE_ERROR, php error handling E_COMPILE_WARNING, and most of E_STRICT raised in the file where set_error_handler() is called. For every other error, you can use set_error_handler() EDIT: Since it seems, that there are some discussions on this topic, with regards to using register_shutdown_function, we should take a look at the definition of handling: To me, handling an error means catching the error and reacting in a way that is "nice" for the user and the underlying data (databases, files, web services, etc.). Using register_shutdown_function you cannot handle an error from within the code where it was called, meaning the code would still stop working at the point where the error occurs. You can, however, present the user with an error message instead of a white page, but you cannot, for example, roll back anything that your code did prior to failing. share|improve this answer edited Sep 30 '11 at 20:58 answered Dec 14 '09 at 10:59 Dan Soap 7,38711943 3 Actually you can handle those errors with an user defined function. All you have to do is define register_shutdown_function. See my answer below for a working example I implemented in my website. –jdias Sep 20 '11 at 18:32 Yes, you can. However, there are some downsides to it: see my edit above –Dan Soap