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PHP Manual
LimitIterator
Check whether the current element is valid

LimitIterator::valid

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

LimitIterator::valid — Check whether the current element is valid

說(shuō)明

public LimitIterator::valid(): bool

Checks whether the current element is valid.

參數

此函數沒(méi)有參數。

返回值

成功時(shí)返回 true，或者在失敗時(shí)返回 false。

參見(jiàn)

LimitIterator::current() - Get current element
LimitIterator::key() - Get current key
LimitIterator::rewind() - Rewind the iterator to the specified starting offset
LimitIterator::next() - Move the iterator forward
LimitIterator::seek() - Seek to the given position

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