CachingIterator
PHP Manual

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.

User Contributed Notes

There are no user contributed notes for this page.

CachingIterator
PHP Manual