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CachingIterator::valid

(PHP 5, PHP 7)

CachingIterator::validCheck whether the current element is valid

说明

public void CachingIterator::valid ( void )
Warning

本函数还未编写文档,仅有参数列表。

Check whether the current element is valid.

参数

此函数没有参数。

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

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