Php/docs/error.getprevious

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• Error
• Returns previous Throwable

Error::getPrevious

(PHP 7, PHP 8)

Error::getPrevious — Returns previous Throwable

Description

final public Error::getPrevious ( ) : Throwable

Returns previous Throwable (the third parameter of Error::__construct()).

Parameters

This function has no parameters.

Return Values

Returns the previous Throwable if available or NULL otherwise.

Examples

Example #1 Error::getPrevious() example

Looping over, and printing out, error trace.

<?phpclass 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:

/home/bjori/ex.php:8 Something happened (911) [MyCustomError]
/home/bjori/ex.php:6 You are doing it wrong! (112) [InvalidArgumentError]

See Also

• Throwable::getPrevious() - Returns the previous Throwable