Error Handling Database Codeigniter
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Codeigniter Catch Database Error
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Codeigniter Active Record Error Handling
them; it only takes a minute: Sign up Codeigniter - handling errors when using active record up vote 43 down vote favorite 13 I am putting together a few models for my codeigniter site and can't seem to find any word in the documentation of how to handle errors that could occur when using the Active Record system. The
Codeigniter Try Catch
documentation demonstrates how to perform CRUD along with some relatively involved queries but no where along the line is error handling discussed. I have done a quick google search and it would appear that the Active Record classes do not throw exceptions. Is this the case? No try catch then... So, how do you code to handle database errors in codeigniter? (failed connection, duplicate key, broken referential integrity, truncation, bad data types etc etc) php codeigniter activerecord share|improve this question edited Nov 22 '15 at 20:19 Josh Crozier 99.2k26145148 asked Feb 4 '10 at 23:58 Sergio 3,38984577 add a comment| 2 Answers 2 active oldest votes up vote 53 down vote accepted Whether you're using the active record class or not, you can access database errors using $this->db->_error_message() and $this->db->_error_number(). If you're using a mysql database, these functions are equivalent to mysql_error() and mysql_errno() respectively. You can check out these functions by looking at the source code for the database driver for the database you're using. They're located in system/database/drivers. So, after you run a que
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Codeigniter Error Handling Example
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show_error('message' [, int $status_code= 500 ] ) This function will display the error message supplied to it using the following error http://developer-paradize.blogspot.com/2014/11/how-to-handle-errors-in-codeigniter.html template: application/errors/error_general.php show_404('page' [, 'log_error']) This function will display the 404 http://www.joshuawinn.com/launching-your-codeigniter-site-disable-database-errors/ error message supplied to it using the following error template: application/errors/error_404.php log_message('level', 'message') This function lets you write messages to your log files. You can three level options: error, debug and info. By default, on a clean install, CI will display ALL php error handling errors of all severity. So if you make a mistake in your PHP coding, you'll see the errors in your browser.. CI uses PHP's error_reporting() function to define the level of error reporting, and you can find this in the main index.php file in the root of your CI install. It's the first function you codeigniter error handling see. Instead of E_ALL, you can change it to any of the predefined error constant that PHP understands to suit your needs. Obviously, once your site goes live, you should change from E_ALL to E_ERROR to show only messages for fatal run time problems. This will hide all php errors except those that will halt your script execution. How to hide database error? You can hide the database error by setting db_debug to FALSE in application/config/database.php. It will display blank page if any database error will occur instead of displaying any kind of database table name or error on site. $db['default']['db_debug'] = FALSE; You can easily redirect to some other error page instead of showing blank page as follows. $query = $this->db->get('your_table'); if(!$query) { show_error("This is where your error message will appear surrounded by this default template. ", 500 ); exit; } When you call show_error(), you will generate page that looks like this. The layout can changed by modifying this file appli
Tutorials & Guides | Tagged: CodeIgniter, PHP, Security Turning off error reporting is often mentioned as a standard security precaution when switching to a production environment. After all, you don't want those precious database table and field names out in the open, for sneaky little hobbitses to view. If someone is rummaging through your site, trying to find vulnerabilities, this severely limits the information they have at their disposal. This of course falls into security-through-obscurity, which isn't going to fix bad code (see the last section below for more about designing code to fail gracefully). It merely fogs the windows to your infrastructure a little. Hackers sometime search Google for pages that have been indexed with MySQL errors on them. They are like a giant red flags, waving boldly in the wind, that read ‘Possible Vulnerability Here'; While a folded ‘On Vacation!' note sits atop the webmaster's chair. Plus, from a visual rather than a security standpoint, who wants to see a big ol' nasty MySQL error when something goes wrong? Alright, you know it's a good idea already. Your CodeIgniter site is launched or is on the verge of doing so, but how do you turn off the errors? There are three Codeigniter files that need to be modified: 1. Turn off PHP Errors with error_reporting(0) In the root directory of your CodeIgniter install, there is an index.php file. The first option in there is ‘PHP ERROR REPORTING LEVEL'. Set it to zero: error_reporting(0); CodeIgniter version 2.0.1 and above have an environment constant in the index.php file as well. Setting this to "production" will disable all PHP error output. Read more about this on the Codeigniter User Guide page on Security and on Handling Environments. 2. Turn off Database Errors in Config The PHP errors are off, but any MySQL errors are still going to show. Turn these off in the