(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplPriorityQueue::setExtractFlags — Sets the mode of extraction
flagsDefines what is extracted by SplPriorityQueue::current(), SplPriorityQueue::top() and SplPriorityQueue::extract().
SplPriorityQueue::EXTR_DATA (0x00000001): Extract the dataSplPriorityQueue::EXTR_PRIORITY (0x00000002): Extract the prioritySplPriorityQueue::EXTR_BOTH (0x00000003): Extract an array containing both
The default mode is SplPriorityQueue::EXTR_DATA.
Returns the flags of extraction.