Example
Set a user-defined exception handler function:
<?php
// A user-defined exception handler function
function myException($exception)
{
echo "<b>Exception:</b> ", $exception->getMessage();
}
// Set user-defined exception handler function
set_exception_handler("myException");
// Throw exception
throw new Exception("Uncaught exception occurred!");
?>
The above code will output something like this:
Exception: Uncaught exception occurred!
Definition and Usage
The set_exception_handler() function sets a user-defined exception handler function.
The script will stop executing after the exception handler is called.
Syntax
set_exception_handler(exceptionhandler);
| Parameter | Description |
|---|---|
| exceptionhandler | Required. Specifies the name of the function to be run when an uncaught exception occurs. NULL can be passed instead, to reset this handler to its default state |
Technical Details
| Return Value: | A string that contains the previously defined exception handler, or NULL on error or if no previous handler was defined |
|---|---|
| PHP Version: | 5.0+ |
| PHP Changelog: | Previously, if NULL was passed then this function returned TRUE. It returns the previous handler since PHP 5.5 |
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