Throwable::getPrevious

(PHP 7, PHP 8)

Throwable::getPrevious — Returns 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.

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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;
    }