XXVI_ Error Handling and Logging Functions

These are functions dealing with error handling and logging_ They allow you to define your own error handling rules, as well as modify the way the errors can be logged_ This allows you to change and enhance error reporting to suit your needs_

With the logging functions, you can send messages directly to other machines, to an email (or email to pager gateway!), to system logs, etc_, so you can selectively log and monitor the most important parts of your applications and websites_

The error reporting functions allow you to customize what level and kind of error feedback is given, ranging from simple notices to customized functions returned during errors_