Check whether the current element is valid

# CachingIterator::valid

(PHP 5, PHP 7, PHP 8)

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

### Description

public CachingIterator::valid(): bool
Warning

This function is currently not documented; only its argument list is available.

Check whether the current element is valid.

### Parameters

This function has no parameters.

### Return Values

Returns `true` on success or `false` on failure.

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