PHP error_reporting() Cheat Sheet

Error handling is important in any programming language and PHP is no exception. Lucky, error handling in PHP is extremely easy to set up. The following is a quick cheat sheet for PHP, straight from PHP.net.

Error Levels

The following values and constants can be used within the error_reporting() function.

Basic Usage

The following is basic usage of PHP's error reporting (using only one level).

//show nothing
error_reporting(0);

//show everything
error_reporting(E_ALL);

//using php.ini and ini_set()
ini_set('error_reporting', E_ALL);

Advanced Usage

The following accounts for multiple error reporting levels.

//show warnings and errors
error_reporting(E_ERROR | ERROR_WARNING);

//show all types but notices
error_reporting(E_ALL ^ E_NOTICE);

Previous Error

To grab information on the last error, you can code:

//returns an array with error number, message, file, and line
error_get_last();