SplPriorityQueue::setExtractFlags

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SplPriorityQueue::setExtractFlags — Sets the mode of extraction

说明

参数

flags

Defines what is extracted by SplPriorityQueue::current() , SplPriorityQueue::top() and SplPriorityQueue::extract() .

• SplPriorityQueue::EXTR_DATA (0x00000001): Extract the data
• SplPriorityQueue::EXTR_PRIORITY (0x00000002): Extract the priority
• SplPriorityQueue::EXTR_BOTH (0x00000003): Extract an array containing both

The default mode is SplPriorityQueue::EXTR_DATA .

返回值

Returns the flags of extraction.