CachingIterator::offsetExists

(PHP 5 >= 5.2.0, PHP 7)

CachingIterator::offsetExistsThe offsetExists purpose

说明

public void CachingIterator::offsetExists ( string $index )
Warning

本函数还未编写文档,仅有参数列表。

参数

index

The index being checked.

返回值

Returns TRUE if an entry referenced by the offset exists, FALSE otherwise.

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