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SplPriorityQueue::insert (PHP 5 >= 5.3.0, PHP 7, PHP 8) SplPriorityQueue::insert — Inserts an element in the queue by sifting it up
Apr 22, 2021 · The SplPriorityQueue::insert () function is an inbuilt function in PHP which is used to inserts an element in the queue by sifting the elements. Insert elements in priority queue by given priority.
In the priorityQueue->insert(value, priority) method of the SplPriorityQueue class, the second parameter, priority, specifies the priority of the element being inserted. The queue uses this priority to order its elements, ensuring that elements with higher priority values will be extracted before those with lower priority values.
Simple usage example of `SplPriorityQueue::insert ()`. The SplPriorityQueue::insert function is used to insert an element into the priority queue, ensuring that it is placed in the correct position by sifting it up based on its priority. This function allows you to easily add new elements to a priority queue while maintaining the ordering of elements based on their priority.
Sep 7, 2025 · SplPriorityQueue::getExtractFlags — Get the flags of extraction SplPriorityQueue::insert — Inserts an element in the queue by sifting it up SplPriorityQueue::isCorrupted — Tells if the priority queue is in a corrupted state SplPriorityQueue::isEmpty — Checks whether the queue is empty SplPriorityQueue::key — Return current node index
The SplPriorityQueue class provides the main functionalities of a prioritized queue, implemented using a max heap. Note: The order of elements with identical priority is undefined. It may differ from the order in which they have been inserted.
Table of Contents 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 ...
