Php/docs/exception.getprevious

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• Exception
• Returns previous Exception

Exception::getPrevious

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Exception::getPrevious — Returns previous Exception

Description

final public Exception::getPrevious ( ) : Throwable

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.

Examples

Example #1 Exception::getPrevious() example

Looping over, and printing out, exception trace.

<?phpclass 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