Error Handling Codeigniter
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Installing CodeIgniter CodeIgniter - Application Architecture CodeIgniter - MVC Framework CodeIgniter - Basic Concepts CodeIgniter - Configuration CodeIgniter - Working with Database CodeIgniter - Libraries CodeIgniter codeigniter log_message - Error Handling CodeIgniter - File Uploading CodeIgniter - Sending Email
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Display Error In Codeigniter
Management CodeIgniter - Common Functions CodeIgniter - Page Caching CodeIgniter - Page Redirection CodeIgniter - Application Profiling CodeIgniter - Benchmarking CodeIgniter - Adding JS and CSS CodeIgniter - https://www.codeigniter.com/user_guide/general/errors.html Internationalization CodeIgniter - Security CodeIgniter Useful Resources CodeIgniter - Quick Guide CodeIgniter - Useful Resources CodeIgniter - Discussion Selected Reading Developer's Best Practices Questions and 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 https://www.tutorialspoint.com/codeigniter/codeigniter_error_handling.htm 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 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) − Erro
Software Development Shell Scripting System Programming Web Programming Tutorials Windows Phone Tutorials Video Tutorials Web Development Tutorials Write For Us Contact https://www.eduonix.com/blog/web-programming-tutorials/error-handling-codeigniter/ Us Web Programming Tutorials Error Handling in CodeIgniter SonalFebruary 9, http://thecancerus.com/simple-way-to-add-global-exception-handling-in-codeigniter/ 2015, 2 years ago008.6K Today we are going to understand the error handling especially in CI in this Error Handling in CodeIgniter tutorial. PHP has various levels of error reporting for different errors. What level of error we get when we run our error handling script depends on our server configuration. The decision to show the error on screen or not, is controlled by the server setting called display_errors. The developer may or may not have access to the underlying server setting such as display_errors. So the underlying settings are unknown to us. These settings are made known igniter error handling to us by codeigniter by the use of error_reporting() function on every page call, which overrides the settings of display_errors. This error_reporting() is found in the main index.php file. Error functions in codeigniter are simple procedural interfaces that are available globally throughout the application, hence the error messages are triggered without caring about the class/function scope. CodeIgniter helps us to report errors into our applications by using the following functions: show_error(): This function displays the error message using the template in application/errors/error_general.php. Syntax of show_error() function is: PHP show_error(‘message’,status_code); 1 show_error(‘message’,status_code);
Here, the parameter message is mandatory and is the string error message to be shown. The parameter status_code is optional which is an integer value representing the HTTP status code to be sent with the error. Example: PHP show_error(‘File not found!’); 1 show_error(‘File not found!’); show_404(): This function displays the 404 error message supplied to it by the template in application/errors/error_404.php. Syntax of show_404() fufor 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 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 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 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 th