thinkphp implement recursive loop column and follow the method of infinite pole output of tree structure, thinkphp recursive _php tutorial

Thinkphp implements recursive loop column and follows the method of infinite pole output of tree structure, thinkphp recursion

In this paper, we describe the method of thinkphp to implement recursive cyclic columns and to output infinite poles according to tree structure. Share to everyone for your reference, as follows:

This uses the thinkphp recursive loop column to output the infinite pole of the tree structure and save it as an array, which facilitates the template invocation

The specific code is as follows:

Private Function CategoryTree ($parentid, $level)//Because it is used in this class, it is set to private functions {$Category = D (' Category '); $result = $Category- >where ("' ParentID ' =". $parentid)->order ("Listorder desc,catid desc")->select (); if ($result) {$count =count ( $result)///Current sub-column number $level++;//sub-column level foreach ($result as $v) {$index ++;if ($count = = $index) $step = "└─"; else $step = "├─"; 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 there are sub-columns {$newData = $newData + $this->categorytree ($v [' catid '], $level);}}} return $newData;}

PHP recursive column saved as an array

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More interested in thinkphp related content readers can view this site topic: "thinkphp Introductory Tutorial", "thinkphp Common Methods Summary", "Smarty Template Primer Basic Tutorial" and "PHP template technology Summary."

It is hoped that this article is helpful to the PHP program design based on thinkphp framework.

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