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This document uses PHP Chinese website manual Release
(PHP 5)
This object supports cached iteration over another iterator.
$iterator
[, int $flags
= self::CALL_TOSTRING
] )$index
)$index
)$index
, string $newval
)$index
)$flags
)CachingIterator::CALL_TOSTRING
Convert every element to string.
CachingIterator::CATCH_GET_CHILD
Don't throw exception in accessing children.
CachingIterator::TOSTRING_USE_KEY
Use key for conversion to string.
CachingIterator::TOSTRING_USE_CURRENT
Use current for conversion to string.
CachingIterator::TOSTRING_USE_INNER
Use inner for conversion to string.
CachingIterator::FULL_CACHE
Cache all read data.