ThinkPHP implements recursive loop columns and outputs infinite pole based on the tree structure. thinkphp recursion _ PHP Tutorial

ThinkPHP implements recursive loop columns and outputs infinite pole based on the tree structure. thinkphp recursion. ThinkPHP implements recursive loop columns and outputs Infinitus according to the tree structure, thinkphp recursion This article provides an example of thinkPHP to implement recursive loops and output thinkPHP to implement recursive loops based on the infinite pole in the tree structure. thinkphp recursion

The example in this article describes how thinkPHP implements recursive loops and outputs Infinitus based on the tree structure. We will share this with you for your reference. The details are as follows:

The thinkphp recursive loop column is used to output an infinite number of outputs according to the tree structure and save it as an array, which facilitates template calling.

The code is as follows:

Private function categoryTree ($ parentid, $ level) // This is a private function {$ Category = D ('Category ') because it is used in this class '); $ result = $ Category-> where ("'parentid' = ". $ parentid)-> order ("listorder desc, catid desc")-> select (); if ($ result) {$ count = count ($ result ); // The current number of subtopics $ level ++; // subtopic level foreach ($ result as $ v) {$ index ++; if ($ count = $ index) $ step = "your-"; else $ step = "your-"; $ step. = str_repeat ('', $ level-1); $ nbsp = str_repeat ('', $ level-1); $ nstr = $ nbsp. $ step; if ($ parentid = 0) $ nstr = ''; $ v ['step'] = $ nstr; $ newData [$ v ['catid'] = $ v; // echo $ nstr. $ v ['catname']."
"; If ($ v ['child '] = 1) // if a subtopic {$ newData = $ newData + $ this-> categoryTree ($ v ['catid'], $ level) ;}}return $ newData ;}

Save the php recursive column as an array

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