(PHP 7, PHP 8)
Error::getPrevious — Returns previous Throwable
final public Error::getPrevious ( ) : Throwable
Returns previous Throwable (the third parameter of Error::__construct()).
This function has no parameters.
Returns the previous Throwable if available or null
otherwise.
Example #1 Error::getPrevious() example
Looping over, and printing out, error trace.
<?php class MyCustomError extends Error {} function doStuff() { try { throw new InvalidArgumentError("You are doing it wrong!", 112); } catch(Error $e) { throw new MyCustomError("Something happened", 911, $e); } } try { doStuff(); } catch(Error $e) { do { printf("%s:%d %s (%d) [%s]\n", $e->getFile(), $e->getLine(), $e->getMessage(), $e->getCode(), get_class($e)); } while($e = $e->getPrevious()); } ?>
The above example will output something similar to:
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/error.getprevious.php