Infinite pole classification, which presses a subset array below a subkey of the parent set array for a better loop display in the foreground template

Method Code:

    Static  Public functionUnlimitedforlayer ($data,$pid=0){        $arr=Array(); foreach($data  as $v) {            if($v[' PID ']==$pid) {                $v[' Child ']=self::unlimitedforlayer ($data,$v[' ID ']); $arr[]=$v; }        }        return $arr; }

Calling program:

<?phpnamespace Home\controller; UseThink\controller; Usehome\clas\cate;classIndexcontrollerextendsController { Public functionindex () {$data=Array(                ' 0 ' + =Array(                        ' id ' =>1, ' pid ' =>0                    ), ' 1 ' + =Array(                        ' id ' =>2, ' pid ' =>0                    ), ' 2 ' + =Array(                        ' id ' =>3, ' pid ' =>1                    ), ' 3 ' + =Array(                        ' id ' =>4, ' pid ' =>3                    )            ); //$data =cate::unlimitedforlevel ($data);        $data=cate::unlimitedforlayer ($data); Echo' <pre> '; Print_r($data); die; Echo' </pre> '; $this-display (); }}

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Infinite pole classification, which presses a subset array below a subkey of the parent set array for a better loop display in the foreground template