Error Handling In Codeigniter
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Benchmarking CodeIgniter - Adding JS and CSS CodeIgniter - Internationalization CodeIgniter - Security CodeIgniter Useful Resources CodeIgniter - Quick Guide CodeIgniter - Useful Resources CodeIgniter - Discussion Selected Reading Developer's Best Practices Questions and https://www.codeigniter.com/user_guide/general/errors.html Answers Effective Resume Writing HR Interview Questions Computer Glossary Who is Who CodeIgniter - Error Handling Advertisements Previous Page Next Page Many times, while using application, we come across errors. It is very annoying for the users if the errors are not handled properly. CodeIgniter provides an easy error handling mechanism. You would like the messages to be displayed, when the application is in developing mode rather https://www.tutorialspoint.com/codeigniter/codeigniter_error_handling.htm than in production mode as the error messages can be solved easily at the developing stage. The environment of your application can be changed, by changing the line given below from index.php file. This can be set to anything but normally there are three values (development, test, production) used for this purpose. define('ENVIRONMENT', isset($_SERVER['CI_ENV']) ? $_SERVER['CI_ENV'] : 'development'); Different environment will require different levels of error reporting. By default, development mode will display errors and testing and live mode will hide them. CodeIgniter provides three functions as shown below to handle errors. show_error() function displays errors in HTML format at the top of the screen. Syntax show_error($message, $status_code, $heading = 'An Error Was Encountered') Parameters $message (mixed) − Error message $status_code (int) − HTTP Response status code $heading (string) − Error page heading Return Type mixed show_404() function displays error if you are trying to access a page which does not exist. Syntax show_404($page = '', $log_error = TRUE) Parameters $page (string) – URI string $log_error (bool) – Whether to log the error Return Type void log_message() function is used to write log messages. This is useful when you want to write custom messages. Syntax log_message($level, $message, $php_error = FALSE) Parameters $level (string) &mi
for us to know. The idea was that whenever such an exception occur on production we should send an email to developers mailing list so that someone http://thecancerus.com/simple-way-to-add-global-exception-handling-in-codeigniter/ can investigate it. As usual I did a quick google search and i found two forum posts in CodeIgniter and one on stackoverflow, but they all fall short as CodeIgniter does not set’s any default exception handlers they way it sets the native error handler. So here is a quick tutorial on how you can do that. First of all you need to setup a hook, so put following code error handling in hook.php file in config folder. $hook['pre_controller'][] = array( 'class' => 'ExceptionHook', 'function' => 'SetExceptionHandler', 'filename' => 'ExceptionHook.php', 'filepath' => 'hooks' ); Now I am using pre_controller hook as I wanted to use $CI object which is available at this stage. Now put the code shown below in the file named ExceptionHook.php in your application’s hooks folder. Also if you need to capture and email native PHP errors, you can igniter error handling do so by extending the Exceptions library as shown in the code below. While I have used the simple PHP mail function in the example above, you can use CI's mail library as well. If you have any doubts feel free to ask in comments below. Posted in: how too?, php Tagged with: codeigniter, exception handling. Post navigation ← CodeIgniter 2.0 Is Baking Installing PEAR and PHPUnit on WAMP and Windows 7 → 8 thoughts on “Simple Way To Add Global Exception Handling In CodeIgniter” Zack Hovatter says: October 3, 2010 at 10:47 pm Nice. Never thought of this. Pingback: How To Catch PHP Fatal Error In CodeIgniter | am i works? David Mann says: March 13, 2014 at 2:58 pm It's been a while since you posted this, but I've just discovered your idea and I really needed this help. I didn't use all the details of the MY_Exceptions class. I just wanted to convert PHP errors into ErrorExceptions so that I could use try/catch blocks consistently. I come from Java/C# thinking and I don't like old-fashioned errors, I prefer the exception approach. Your tutorial gave me the introduction to hooks that I needed to implement an error handler globally that throws an ErrorException whenever an error oc