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Throwable::getPrevious

(PHP 7, PHP 8)

Throwable::getPreviousReturns the previous Throwable

Description

public Throwable::getPrevious(): ?Throwable

Returns any previous Throwable (for example, one provided as the third parameter to Exception::__construct()).

Parameters

This function has no parameters.

Return Values

Returns the previous Throwable if available, or null otherwise.

See Also

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User Contributed Notes 1 note

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harry at upmind dot com
5 years ago
/**
* Gets sequential array of all previously-chained errors
*
* @param Throwable $error
*
* @return Throwable[]
*/
function getChain(Throwable $error) : array
{
$chain = [];

do {
$chain[] = $error;
} while ($error = $error->getPrevious());

return $chain;
}
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