Error Handling

This script will enable you to change the way php handles your error messages. You will be able to send error details via email and redirect the visitor to an error page! It makes use of the PHP4 feature set_error_handler. You need to have mail() properly configured on your system.

Note: This code has to be at the very top of your php file!

CODE

<? // Decide what errors to report: error_reporting (E_ERROR | E_WARNING | E_NOTICE); // Webmaster email and error page url: $Wmemail = 'you@yoursite.com'; $ErrorPage = 'http://www.yoursite.com/error.html'; // This function will check the error type: function MailErrorHandler($errno, $errstr, $errfile='?', $errline= '?') { global $Wmemail, $ErrorPage; if (($errno & error_reporting()) == 0) return; $err = ''; switch($errno) { case E_ERROR: $err = 'FATAL'; break; case E_WARNING: $err = 'ERROR'; break; case E_NOTICE: return; } // Send the error details via email: mail($Wmemail, "PHP: $errfile, $errline", "$errfile, Line $errlinen$err($errno)n$errstr"); // Redirect to the error page: print '<META HTTP-EQUIV="Refresh" CONTENT="0;url='.$ErrorPage.'">'; die(); } set_error_handler('MailErrorHandler'); ?>

You can generate an error for testing by using an undefined variable as a function call:

CODE

$undefinedvar();

Here you have the error levels and description:

CODE

E_NOTICE Notices are not printed by default, and indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script. For example, trying to access the value of a variable which has not been set, or calling stat() on a file that doesn't exist. E_WARNING Warnings are printed by default, but do not interrupt script execution. These indicate a problem that should have been trapped by the script before the call was made. For example, calling ereg() with an invalid regular expression. E_ERROR Errors are also printed by default, and execution of the script is halted after the function returns. These indicate errors that can not be recovered from, such as a memory allocation problem. E_PARSE Parse errors should only be generated by the parser. The code is listed here only for the sake of completeness. E_CORE_ERROR This is like an E_ERROR, except it is generated by the core of PHP. Functions should not generate this type of error. E_CORE_WARNING This is like an E_WARNING, except it is generated by the core of PHP. Functions should not generate this type of error. E_COMPILE_ERROR This is like an E_ERROR, except it is generated by the Zend Scripting Engine. Functions should not generate this type of error. E_COMPILE_WARNING This is like an E_WARNING, except it is generated by the Zend Scripting Engine. Functions should not generate this type of error. E_USER_ERROR This is like an E_ERROR, except it is generated in PHP code by using the PHP function trigger_error(). Functions should not generate this type of error. E_USER_WARNING This is like an E_WARNING, except it is generated by using the PHP function trigger_error(). Functions should not generate this type of error. E_USER_NOTICE This is like an E_NOTICE, except it is generated by using the PHP function trigger_error(). Functions should not generate this type of error. E_ALL All of the above. Using this error_reporting level will show all error types.

Tutorial By Xtasy