Chaining Exceptions¶
Chaining exception is throwing again a caught exception, with a new type, and with the previous exception.
To provide the previous exception to a new exception, use the third parameter of the Exception constructor. Also, always provide a third argument to custom exceptions.
The previous exception is available with the Exception::getPrevious() method of the Exception class.
<?php
class myException extends \Exception {
function __construct(string $message, $code, \Throwable $exception) {
parent::__construct($message, $code, $exception);
}
}
try {
doSomething();
} catch(\Exception $e) {
// chaining exception
throw new myException('doSomething failed', 0, $e);
}
?>
