Implementation of unlimited classification tree class in PHP

Wuji classification is a level that is more difficult to overcome now. I will post the code now. Friends in need can expand it according to actual needs.

Share a php Infinitus classification related code class, Non-recursively obtain all descendant classifications, Use the path field to obtain descendant classifications ,Update the descendant classification path,Organize the list into a tree shape##

Share an enhanced version of PHP tree classification, including: The 2-dimensional array required to generate the tree structure, The modification symbols required to generate the tree structure, which can be replaced Picture, get the parent and child arrays, get the current position array, get the tree structure, format array.

Share an efficient PHP unlimited classification, uses PHP arrays to achieve unlimited classification, high efficiency, no database, no recursion. Function: Construct a sub-level based on the parent level, Add a new category, When data.php does not exist, Generate an array format of infinite categories and write it into a PHP file. When data.php exists, sort the array. Loop to generate an array of infinite categories. Format and write to PHP file. ##

Share an enhanced version of PHP tree classification, including: The 2-dimensional array required to generate the tree structure, The modification symbols required to generate the tree structure, which can be replaced Picture, get the parent and child arrays, get the current position array, get the tree structure, format array.

A#php example of multiple unlimited classification libraries, including the code to create a complete database and table, connect the database table to display the unlimited classification library, friends who need it can directly use it for learning reference , I hope it will be helpful to my friends.

When doing PHP programs, we often encounter programming that designs multi-level menus. In fact, many open source backends have infinite levels of classification, and the data of these categories It's just saved to a data table, and it's just related with the source code. These associated data are not complicated. In fact, an excellent backend design should be infinitely classified. In this way, when performing secondary development, there is no need to program separately. As long as the functions are the same, the backend Just add a category, so that function sharing is achieved.

Encapsulates an Unlimited class, which is used to call diaplayList() to display the drop-down list form, and call diaplayLink to display the navigation Link category. You can also add (addNodes()) and delete (deleteNodes) categories.

This PHP unlimited classification code is relatively complete and includes the MySQL database, which has the functions of adding, deleting, editing, and moving. It comes with front-end call example code, which is convenient for friends to download and use.

This section introduces a php tree menu class. The principle is simple. Those who have studied data structures will understand what it means at a glance.Data structures are the basis, such as linked lists, binary trees, hashes, sorting algorithms, etc. You may not be able to use them when writing PHP code, but mastering them will allow you to understand the operating principles of the program. Have a deeper understanding.

There are many methods and functions on the Internet to implement this function, but they basically use recursive queries, otherwise the code will be long. The disadvantage of using recursive queries is that if the classification level is too large or there are too many comments and replies, the number of database queries will increase dramatically In this article you will learn about a brand new infinite classification implementation method, which can even achieve unlimited classification or unlimited reference reply functions with just one query