echo $list->offsetGet(0); // apple echo $list->offsetGet(1); // banana A tree is a data structure composed of nodes, where each node has a value and zero or more child nodes. PHP 7 provides a SplTree class that can be used to implement trees.
Arrays Arrays are the most basic data structure in PHP 7. They are ordered collections of values that can be of any data type, including strings, integers, floats, and objects. Arrays can be created using the array() function or the [] syntax. Php 7 Data Structures And Algorithms Pdf Free Download -BEST
echo array_pop($stack); // cherry echo array_pop($stack); // banana A queue is a First-In-First-Out (FIFO) data structure that allows elements to be added and removed. In PHP 7, queues can be implemented using arrays. They are ordered collections of values that can
$queue = array(); array_push($queue, 'apple'); array_push($queue, 'banana'); array_push($queue, 'cherry'); In PHP 7, queues can be implemented using arrays
function bfs($graph, $start) { $visited = array(); $queue = array($start); while (!empty($queue)) { $node = array_shift($queue); if (!in_array($node, $visited)) { $visited[] = $node; foreach ($graph[$node] as $neighbor) { if (!in_array($neighbor, $visited)) { $queue[] = $neighbor; } } } } return $visited; }