SplDoublyLinkedList::offsetExists

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::offsetExists — Returns whether the requested $index exists

说锟斤拷

public SplDoublyLinkedList::offsetExists ( mixed $index ) : bool

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index

The index being checked.

锟斤拷锟斤拷值

TRUE if the requested index exists, otherwise FALSE