RecursiveIteratorIterator::key
(PHP 5, PHP 7, PHP 8)
RecursiveIteratorIterator::key — Access the current key
参数
此函数没有参数。
返回值
The current key.
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(PHP 5, PHP 7, PHP 8)
RecursiveIteratorIterator::key — Access the current key
此函数没有参数。
The current key.
add a note
