PHP變量空外部Foreach？

Question

我有一個類系統和一個函數，它從數據庫結果做foreach。變量是在foreach中分配的，但在foreach外部是空的。

// Top of file 
private $movieList = array(); 

if ($query->num_rows() > 0) { 
      foreach ($query->result() as $row) { 
       // add each to the array 
       $this->movieList[] = array('nid' => $row->nid, 'title' => $row->title, 'movie_pos_id' => $row->movie_pos_id); 
       print_r($this->movieList); // variable full of stuff 
      } 
      // No results found 
      return false; 
     } 

print_r($this->movieList); // variable empty 

任何想法爲什麼？

Answer 1

在我看來像你的行if語句永遠不會執行，因爲你總是返回假如果你有結果。檢查你的括號。您可能的意思是：

if ($query->num_rows() > 0) { 
    foreach ($query->result() as $row) { 
     // add each to the array 
     $this->movieList[] = 
      array('nid' => $row->nid, 'title' => $row->title, 
       'movie_pos_id' => $row->movie_pos_id); 
     print_r($this->movieList); // variable full of stuff 
    } 
} 
else { 
    // No results found 
    return false; 
} 

print_r($this->movieList); 

Answer 2

您的大括號不匹配。試試這個

// Top of file 
private $movieList = array(); 

if ($query->num_rows() > 0) { 
      foreach ($query->result() as $row) { 
       // add each to the array 
       $this->movieList[] = array('nid' => $row->nid, 'title' => $row->title, 'movie_pos_id' => $row->movie_pos_id); 
       print_r($this->movieList); // variable full of stuff 
      } 
}else{ 
      // No results found 
      return false; 
} 


print_r($this->movieList); // variable empty