Whole exception-class hierarchy is shown at http://php.net/manual/en/spl.exceptions.php#spl.exceptions.tree
PHP - Manual: RuntimeException
2025-02-27
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
Exception thrown if an error which can only be found on runtime occurs.
Whole exception-class hierarchy is shown at http://php.net/manual/en/spl.exceptions.php#spl.exceptions.tree
官方地址:https://www.php.net/manual/en/class.runtimeexception.php