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What are the data structures of php
##Doubly linked list
PHP programming from entry to proficiency)
Heap
The heap is a tree structure that follows the heap attributes: each node Greater than or equal to its children, compared using the implemented comparison method on the heap global.Array
An array is a structure that stores data in a continuous manner and can be accessed through an index. Don't confuse them with PHP arrays: PHP arrays are actually implemented as ordered lists.Mapping
Mapping is a data with key-value pairs. PHP arrays can be thought of as mappings from integers/strings to values. SPL provides mapping from objects to data. This map can also be used as an object set.Stack Stack
is similar to a queue, a data structure with data storage characteristics. Features: Data is stored in a first-in-last-out manner. The stack has only one outlet, and elements can only be added and removed from the top of the stack.queue Queue
Features: First-in-first-out (FIFO), used in concurrency, can safely pass objects from one task to another.set Set
Features: Save unique elements.map Dictionary
graph Graph
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