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MySQL Where PHP MySQL Limit PHP MySQL Order By PHP MySQL Update PHP MySQL Delete PHP EXAMPLES PHP Practice Examples PHP FAQ's Answers PHP REFERENCE PHP String Functions PHP Array Functions PHP File System Functions PHP Date/Time http://php.net/manual/en/function.error-reporting.php Functions PHP Calendar Functions PHP MySQLi Functions PHP Filters PHP Error Levels SPONSORED LINKS Unlimited Hosting $1.99/mo WordPress Hosting $3.75/mo Cloud Hosting Only $5/mo Advertise Here Tweet Follow PHP 5 Error Levels There are sixteen different error levels (i.e. types) are available in PHP. Error Levels in PHP Usually, whenever the PHP engine encounters a problem that prevents a script from running properly it generate an error message. There are sixteen different error levels and http://www.tutorialrepublic.com/php-reference/php-error-levels.php each level is represented by an integer value and an associated constant. Here's a list of error levels: Error Level Value Description E_ERROR 1 A fatal run-time error, that can't be recovered from. The execution of the script is stopped immediately. E_WARNING 2 A run-time warning. It is non-fatal and most errors tend to fall into this category. The execution of the script is not stopped. E_PARSE 4 The compile-time parse error. Parse errors should only be generated by the parser. E_NOTICE 8 A run-time notice indicating that the script encountered something that could possibly an error, although the situation could also occur when running a script normally. E_CORE_ERROR 16 A fatal error that occur during the PHP's engine initial startup. This is like an E_ERROR, except it is generated by the core of PHP. E_CORE_WARNING 32 A non-fatal error that occur during the PHP's engine initial startup. This is like an E_WARNING, except it is generated by the core of PHP. E_COMPILE_ERROR 64 A fatal error that occur while the script was being compiled. This is like an E_ERROR, except it is generated by the Zend Scripting Engine. E_COMPILE_WARNING 128 A non-fatal error occur while the script was being compiled. This is like an E_WARNING, except it is generated by the Zend Scripting Engine. E_USER_ERROR 256 A fatal user-generated error messa
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of http://stackoverflow.com/questions/4800617/bitwise-operators-and-error-levels-php this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask http://www.thecreativedev.com/types-of-error-levels-in-php/ Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up php error bitwise operators and error levels (php) up vote 0 down vote favorite I have created a user error handler, and I want to make sure that I am using bitwise operators correctly. Here are my config settings to set which errors will be handled in which way: // user error logging level (change for production) define('LEV_USER_ERROR_LOG_LEVEL', E_USER_ERROR | E_USER_WARNING | E_USER_NOTICE); // user error levels php error display level (change for production) define('LEV_USER_ERROR_DISPLAY_LEVEL', E_USER_ERROR); Here is how I set the user error handler: // set user error handler set_error_handler('user_error_handler', E_USER_ERROR | E_USER_WARNING | E_USER_NOTICE); Here is the error handler itself: // user error handler public static function user_error_handler($error_level, $message, $file_name, $line_number) { if (LEV_USER_ERROR_LOG_LEVEL | LEV_USER_ERROR_DISPLAY_LEVEL == 0) return true; switch ($error_level) { case E_USER_ERROR: if (LEV_USER_ERROR_LOG_LEVEL & E_USER_ERROR) { error_log('[' . date('Y-m-d h:i:s') . '] User Error: "' . $message . '", File: "'.$file_name.'", Line: '.$line_number.', Request: "' . $_SERVER['ORIG_PATH_INFO'] . "\"\n", 3, 'application/logs/user_error_log.txt'); } if (LEV_USER_ERROR_DISPLAY_LEVEL & E_USER_ERROR) { echo '[' . date('Y-m-d h:i:s') . '] User Level Error: "' . $message . '", File: "'.$file_name.'", Line: '.$line_number.'
'; } die; break; case E_USER_WARNING: if (LEV_USER_ERROR_LOG_LEVEL & E_USER_WARNING) { error_log('[' . date('Y-m-d h:i:s') . '] User Warning: "' . $message . '", File: "'.$file_name.'", Line: '.$line_number.', Request: "' . $_SERVER['ORIG_PATH_INFO'] . "\"\n", 3, 'application/logs/user_error_log.txt'); } if (LEV_USER_ERROR_DISPLAY_LEVEL & E_USER_WARNING) { echo '[' . date('Y-m-d h:i:s') . '] User Level Warning: "' . $message . '", File: "'.$file_name.'", Line: '.$line_number.'
'; } break; case E_USER_NOTICE: if (LEV_USER_ERROR_LOG_LEVEL & E_USER_NOTICE) { error_log('['
in log report and using log, you can easily identify the errors in your code. Basically, PHP error is categorized by error levels for various kind of errors and its define all kinds of error from notice to fatal errors.The error level defines the seriousness and importance of errors.Most of the errors may be caught with a custom error handler, but some are unrecoverable. How to use error_reporting function? The error_reporting() function is used to set the level of PHP error and return to the current level. You can set up an error level in php.ini. By default, PHP will report all errors except notice.Error reporting level can be set through a number of predefined constants available in PHP for errors. Generally To set the levels of error in the PHP web application, error_reporting(), the function is useful.We can set error levels like 123 int error_reporting(E_ERROR | E_WARNING | E_NOTICE | E_PARSE); How to Turn off all Errors? To Turn off all levels of errors, we can use the same function error_reporting with value 0. 123 error_reporting(0); How to Turn on all Errors? To Turn on all levels of errors, we can use the same function error_reporting with value E_ALL which can be used "or" condition so that all types errors can be reported. 123 error_reporting (E_ALL); // Report All Bugs Error Levels Types Let's one by one see basic types of error level.Before dive into the error levels, if you want to learn how you can log errors, learn about the LOG of PHP, MySQL and Apache here. 1. E_ERROR This is a fatal, unrecoverable error. Examples for E_ERROR are uncaught exe or class redeclaration.It is Run-time error and it will prevent the execution of code. 123 error_reporting(E_ERROR); 2. E_WARNING This is the most common kind of error. It normally occurs when someth