PHP method to get all subcategories under categories_PHP tutorial

php method to get all subclasses under the category

Get all subclass methods under the category:

static function getMenuTree($arrCat, $parent_id = 0, $level = 0,$all=True)

　{

static $arrTree; //Use static instead of global

　if(!$all) $arrTree ='';

　if( empty($arrCat)) return FALSE;

　$level++;

　if($level == 1) $arrTree[] = $parent_id;

foreach($arrCat as $key => $value)

　{

　if($value['parent_cid' ] == $parent_id)

　{

//$value[ 'level'] = $level;

$arrTree[] = $value['cid'];

unset($arrCat[$key]); //Unregister the current node data and reduce useless traversal

Self::getMenuTree($arrCat, $value[ 'cid'], $level);

　}

　}

return $arrTree;

　}

The prerequisite for using the above method is to write the classification into the cache file. The cache file writing method is as follows:

Public function actionIndex2()

　{

$filepath = Yii::getPathOfAlias('application').'/data/';

　$arr = array();

　$db = Yii::app()->db;

　$listinfo = $db->createCommand("select name,cid,parent_cid,root_cid from item_cat_info")->queryAll();

foreach($listinfo as $val)

　{

　$arr[$val['cid']] = array('cid'=>$val['cid'],'name'=>$val['name'],'parent_cid'=> ;$val['parent_cid'],'root_cid'=>$val['root_cid']);

　}

　$applist = "";

file_put_contents($filepath.'itemcat.php', $applist);

　}

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