使用变量

Question

好了，我已经在我的模型如下功能：

public function get_learning_category_list() { 
$categorias = $this->db->select('t1.id, t1.title, t1.metadata, t1.meta_title, t1.description, t1.meta_description, t1.meta_spam, t1.url, t1.alt_img') 
    ->from('learning_category t1') 
    ->join('learning_rel_category t4', 't1.id = t4.category_id', 'left') 
    ->join('learning t2', 't4.learning_id = t2.id', 'left') 
    ->join('learning_rel_language t3', 't2.id = t3.learning_id', 'left') 
    ->where('t3.language', $this->language) 
    ->group_by('t1.id') 
    ->get()->result_array(); 
foreach($categorias as $c){ 
    $total = $this->db->select('count(learning_rel_language.learning_id) as total', false) 
    ->from('learning') 
    ->join('learning_rel_language', 'learning.id = learning_rel_language.learning_id', 'inner') 
    ->join('learning_rel_category', 'learning.id = learning_rel_category.learning_id', 'inner') 
    ->where('learning_rel_category.category_id', $c['id']) 
    ->where('learning_rel_language.language', $this->language) 
    ->group_by('learning_rel_language.language')->get()->first_row('array'); 

    $metadata = json_decode($c['metadata']); 
    $tt = $c['title']; 
    $url = $c['url']; 
    if($this->language != 'pt_br'){ 
     $tt = $metadata->{$this->language}; 
     $tt_pt_br = $c['title']; 
    } 

    $return[] = array('url' => $url, 'title'=>$tt, 'id'=>$c['id'], 'total'=>$total['total'], 'title_pt_br'=>$tt_pt_br); 

} 

return $return; //$categorias; 
} 

给在该值的print_r($this->learn->get_learning_category_list());我的结果：

Array ([0] => Array ([url] => [title] => Title [id] => 2 [total] => 6 [title_pt_br] =>)

美容？但我需要使用（相同的模型）这些值，网址和标题等。我该怎么做？

作为更具体的，我要在这里使用：

$category_format = (here title).'-cmdo-'.(here id);。

Answer 1

如果您想使用从型号检索到的数组，这里是你可以做什么：

$categorias = $this->learn->get_learning_category_list(); 
foreach($categorias as $cat){ 
    $category_format = $cat['title'].'-cmdo-'.$cat['id']; 
} 

如果你想要的对象，改变这一行：

$return[] = array('url' => $url, 'title'=>$tt, 'id'=>$c['id'], 'total'=>$total['total'], 'title_pt_br'=>$tt_pt_br); 

通过这样的：

$object = new stdClass(); 
$object->url = $url; 
$object->title = $tt; 
$object->id = $c['id']; 
$object->total = $total['total']; 
$object->title_pt_br = $tt_pt_br; 
$return[] = $object;