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Ce document utilise Manuel du site Web PHP chinois Libérer
(PHP 5 >= 5.1.0)
RecursiveIterator::hasChildren — Returns if an iterator can be created fot the current entry.
Returns if an iterator can be created for the current entry. RecursiveIterator::getChildren() .
此函数没有参数。
Returns TRUE
if the current entry can be iterated over, otherwise returns FALSE
.