Php Error Handling Fatal Error
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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 register_shutdown_function fatal error you, helping each other. Join them; it only takes a minute: Sign up How do I catch a PHP Fatal Error up vote 414 down vote favorite 181 I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal (E\_ERROR) errors, such as calling a function that doesn't exist. Is there another what is fatal error in php way to catch these errors? I am trying to call mail() for all errors and am running PHP 5.2.3. php fatal-error share|improve this question edited Dec 22 '13 at 19:26 aksu 3,94451434 asked Nov 10 '08 at 6:42 too much php 41.9k26107123 add a comment| 17 Answers 17 active oldest votes up vote 506 down vote Log fatal errors using register_shutdown_function, which requires PHP 5.2+: register_shutdown_function( "fatal_handler" ); function fatal_handler() { $errfile = "unknown file"; $errstr = "shutdown"; $errno = E_CORE_ERROR; $errline = 0; $error = error_get_last(); if( $error !== NULL) { $errno = $error["type"]; $errfile = $error["file"]; $errline = $error["line"]; $errstr = $error["message"]; error_mail(format_error( $errno, $errstr, $errfile, $errline)); } } You will have to define the error_mail and format_error functions. For example: function format_error( $errno, $errstr, $errfile, $errline ) { $trace = print_r( debug_backtrace( false ), true ); $content = "
Item | Description |
---|---|
Error | $errstr |
Errno | $errno |
File | $errfile |
Line | $errline |
Trace | $trace |
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of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Handle fatal errors in PHP using register_shutdown_function() up vote 22 down vote favorite 11 According to the http://stackoverflow.com/questions/277224/how-do-i-catch-a-php-fatal-error comment on this answer it is possible to catch Fatal Errors through a shutdown function which cannot be caught using set_error_handler(). However, I couldn't find out how to determine if the shutdown has occured due to a fatal error or due to the script reaching its end. Additionally, the debug backtrace functions seem to be defunct in the shutdown function, making it pretty worthless for logging the stack trace where the http://stackoverflow.com/questions/4410632/handle-fatal-errors-in-php-using-register-shutdown-function Fatal Error occured. So my question is: what's the best way to react on Fatal Errors (especially undefined function calls) while keeping the ability to create a proper backtrace? php error-handling fatal-error share|improve this question asked Dec 10 '10 at 15:55 ThiefMaster♦ 188k38353466 add a comment| 4 Answers 4 active oldest votes up vote 40 down vote accepted This works for me: function shutdown() { $error = error_get_last(); if ($error['type'] === E_ERROR) { // fatal error has occured } } register_shutdown_function('shutdown'); spl_autoload_register('foo'); // throws a LogicException which is not caught, so triggers a E_ERROR However, you probably know it already, but just to make sure: you can't recover from a E_ERROR in any way. As for the backtrace, you can't... :( In most cases of a fatal error, especially Undefined function errors, you don't really need it. Pinpointing the file/line where it occured is enough. The backtrace is irrelevant in that case. share|improve this answer edited Dec 10 '10 at 16:22 answered Dec 10 '10 at 16:05 netcoder 43k985123 add a comment| up vote 5 down vote One way to distinguish between fatal error and proper application shutdown with the register_shutdown_function is to define a constant as the last line of your program, and then check if the constant is defined: function
and Objects Namespaces Errors Exceptions Generators References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported http://php.net/manual/en/book.errorfunc.php Protocols and Wrappers Security Introduction General considerations Installed as CGI http://blog.elijaa.org/2010/04/20/handling-fatal-error-in-php-with-register_shutdown_function/ binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting Using Register Globals User Submitted Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads fatal error Using remote files Connection handling Persistent Database Connections Safe Mode Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Credit Card Processing Cryptography Extensions Database Extensions Date and Time Related Extensions File System catch fatal error Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type 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 Introduction » « blenc_encrypt PHP Manual Function Reference Affecting PHP's Behaviour Change language: English Brazilian Portuguese Chinese (Simplified) French German Japanese Korean Romanian Russian Spanish Turkish Other Edit Report a Bug Error Handling and Logging IntroductionInstalling/ConfiguringRequirementsInstallationRuntime ConfigurationResource TypesPredefined ConstantsExamplesError Handling Functionsdebug_backtrace — Generates a backtracedebug_print_backtrace — Prints a backtraceerror_clear_last — Clear the most re
PHP with register_shutdown_function PHP 5.2.0 bring us a new function : error_get_last() It return an associative array describing the last error with keys "type", "message", "file" and "line" about the last error that occurred. We can now use it with register_shutdown_function to handle fatal error, log, redirect, html page, instead of the infamous white page. 1234567891011121314151617181920 /** * Handling fatal error * * @return void */function fatalErrorHandler(){# Getting last error$error = error_get_last();# Checking if last error is a fatal errorif(($error['type'] === E_ERROR) || ($error['type'] === E_USER_ERROR)){# Here we handle the error, displaying HTML, logging, ...echo 'Sorry, a serious error has occured in ' . $error['file'];}}# Registering shutdown functionregister_shutdown_function('fatalErrorHandler'); Resources : http://www.php.net/manual/en/function.error-get-last.php http://php.net/manual/en/errorfunc.constants.php FacebookTwitter Related posts: Handle configuration in PHP with var_export() Solve Wrong permissions on configuration file, should not be world writable! error on phpMyAdmin Write file manipulation cross-platform PHP code How to regularly check for a newer version in a PHP application Solve PHP Warning : session_start() [function.session-start]: Node no longer exists 2 Responses Comments2 Pingbacks0 Suraj Kumar Adhikari says: March 5, 2014 at 2:07 AM Awesome information!!! thanks Reply James says: May 31, 2016 at 2:53 PM Good tip, thanks! Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Search PHP Detect WebP, JP2 / JPEG 2000 and JXR / JPEG XR browser support in PHP PHP Access Windows Files from Linux Server via smbclient & PHP PHP PHP API Client Library and Google Cloud Storage PHP Solve PHP Warning : session_start() [function.session-start]: Node no longer exists Eli © 2016. All Rights Reserved.