(PHP 5 >= 5.1.0, PHP 7)
RecursiveIteratorIterator::getMaxDepth — Get max depth
public RecursiveIteratorIterator::getMaxDepth ( ) : mixed
Gets the maximum allowable depth.
This function is currently not documented; only its argument list is available.
This function has no parameters.
The maximum accepted depth, or false if any depth is allowed.
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https://www.php.net/manual/en/recursiveiteratoriterator.getmaxdepth.php