update : 2015.11.03
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Returns the previous Throwable
Throwable
PHP Manual

Throwable::getPrevious

(PHP 7)

Throwable::getPrevious — Returns the previous Throwable

설명

abstract public Throwable Throwable::getPrevious ( void )

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

인수

이 함수는 인수가 없습니다.

반환값

Returns the previous Throwable if available, or NULL otherwise.

참고

Throwable
PHP Manual