How to implement infinite grading with recursion under the TP5 Framework (code example)

This article brings the content is about the TP5 framework under the recursive implementation of infinite Classification (code example), there is a certain reference value, the need for friends can refer to, I hope to help you.

I use the TP5 framework, because the project with unlimited classification, so I create a extend inside a catetree package and then create a class catetee.php, you can directly reference in the controller can be

<?phpnamespace catetree;class catetree {public Function Catetree ($cateRes) {return $this->sort ($cateR    ES);        The Public function sort ($cateRes, $pid =0, $level =0) {static $arr =array ();                foreach ($cateRes as $k = + $v) {if ($v [' pid ']== $pid) {$v [' level ']= $level;                $arr []= $v;            $this->sort ($cateRes, $v [' id '], $level + 1);    }} return $arr;        }//Get sub-column ID public function childrenids ($cateid, $obj) {$data = $obj->field (' Id,pid ')->select ();   return $this->_childrenids ($data, $cateid, TRUE);        } Private Function _childrenids ($data, $cateid, $clear =false) {static $arr =array ();        if ($clear) {$arr =array ();                } foreach ($data as $k = + $v) {if ($v [' pid ']== $cateid) {$arr []= $v [' id '];            $this->_childrenids ($data, $v [' id ']);   }} return $arr; }//Processing column sort public functioN Catesort ($data, $obj) {foreach ($data as $k + $v) {$obj->update ([' id ' = + $k, ' sort ' = ' + $v]); }}//Process bulk Delete public function Pdel ($cateids) {foreach ($cateids as $k = = $v) {$children                idsarr[]= $this->childrenids ($v);            $childrenidsarr []= (int) $v;            } $_childrenidsarr=array (); foreach ($childrenidsarr as $k = + $v) {if (Is_array ($v)) {foreach ($v as $k 1 + = $v                    1) {$_childrenidsarr[]= $v 1;                }}else{$_childrenidsarr[]= $v;            }} $_childrenidsarr=array_unique ($_childrenidsarr);       $this::d Estroy ($_childrenidsarr); }}