The SplPriorityQueue class

(PHP 5 >= 5.3.0)

Введение

The SplPriorityQueue class provides the main functionalities of an prioritized queue, implemented using a heap.

Обзор классов

SplPriorityQueue implements Iterator , Countable {
/* Методы */
__construct ( void )
int compare ( mixed $priority1 , mixed $priority2 )
int count ( void )
mixed current ( void )
mixed extract ( void )
void insert ( mixed $value , mixed $priority )
bool isEmpty ( void )
mixed key ( void )
void next ( void )
void recoverFromCorruption ( void )
void rewind ( void )
void setExtractFlags ( int $flags )
mixed top ( void )
bool valid ( void )
}

Содержание

• SplPriorityQueue::compare — Compare priorities in order to place elements correctly in the heap while sifting up.
• SplPriorityQueue::__construct — Constructs a new empty queue
• SplPriorityQueue::count — Counts the number of elements in the queue.
• SplPriorityQueue::current — Return current node pointed by the iterator
• SplPriorityQueue::extract — Extracts a node from top of the heap and sift up.
• SplPriorityQueue::insert — Inserts an element in the queue by sifting it up.
• SplPriorityQueue::isEmpty — Checks whether the queue is empty.
• SplPriorityQueue::key — Return current node index
• SplPriorityQueue::next — Move to the next node
• SplPriorityQueue::recoverFromCorruption — Recover from the corrupted state and allow further actions on the queue.
• SplPriorityQueue::rewind — Rewind iterator back to the start (no-op)
• SplPriorityQueue::setExtractFlags — Sets the mode of extraction
• SplPriorityQueue::top — Peeks at the node from the top of the queue
• SplPriorityQueue::valid — Check whether the queue contains more nodes

Описание класса splpriorityqueue, примеры использования класса splpriorityqueue.

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