Exception::getPrevious
Exception::getPrevious
(PHP 5 >= 5.3.0, PHP 7)
Exception::getPrevious — Returns previous Exception
Description
final public Throwable Exception::getPrevious ( void )
Returns previous exception (the third parameter of Exception::__construct()).
Parameters
This function has no parameters.
Return Values
Returns the previous Throwable if available or NULL otherwise.
Changelog
| Version | Description |
|---|---|
| 7.0.0 | The return type declaration changed to Throwable. |
Examples
Example #1 Exception::getPrevious() example
Looping over, and printing out, exception trace.
<?php
class MyCustomException extends Exception {}
function doStuff() {
try {
throw new InvalidArgumentException("You are doing it wrong!", 112);
} catch(Exception $e) {
throw new MyCustomException("Something happened", 911, $e);
}
}
try {
doStuff();
} catch(Exception $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:
/home/bjori/ex.php:8 Something happened (911) [MyCustomException] /home/bjori/ex.php:6 You are doing it wrong! (112) [InvalidArgumentException]
See Also
- Throwable::getPrevious() - Returns the previous Throwable
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/exception.getprevious.php
