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SplDoublyLinkedList::unshift (PHP 5 >= 5.3.0, PHP 7, PHP 8) SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element
SplDoublyLinkedList::top — Peeks at the node from the end of the doubly linked list SplDoublyLinkedList::unserialize — Unserializes the storage SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element SplDoublyLinkedList::valid — Check whether the doubly linked list contains more nodes PHP Manual
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SplDoublyLinkedList:: unshift Prepends the doubly linked list with an element Signature public function unshift ( $value )
SplDoublyLinkedList::shift — Shifts a node from the beginning of the doubly linked list SplDoublyLinkedList::top — Peeks at the node from the end of the doubly linked list SplDoublyLinkedList::unserialize — Unserializes the storage SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element
SplDoublyLinkedList::top — Peeks at the node from the end of the doubly linked list SplDoublyLinkedList::unserialize — Unserializes the storage SplDoublyLinkedList::unshift — Prepends the doubly linked list with an element SplDoublyLinkedList::valid — Check whether the doubly linked list contains more nodes
Nov 13, 2022 · Thankfully PHP comes with an implementation of linked lists in the `SplDoublyLinkedList` class structure. It has several built-in functions including the `push ()`/`pop ()` functions which add or remove the tail element, `shift ()`/`unshift ()` functions which add or remove head elements.
