訪問accossiated數組值不工作

Question

我有這個函數返回一個數組對象

static public function GetFeaturedArticle($db) { 

    try { 

     $statement = $db->prepare("SELECT a.*, u.username FROM articles a LEFT JOIN users u ON a.user_id = u.id WHERE a.featured = TRUE LIMIT 1"); 
     $statement->execute();  

     while ($record = $statement->fetch(PDO::FETCH_ASSOC)) { 
      // i have to process some data here and i want to return 
      // associative array back 
      $obj = new self($db); 
      $obj->processInput($record); 
      $obj->processPhotoField(); 

     } 

    } catch (PDOException $ex) { 
     if (HOST_TYPE ==="dev") { 
      echo "<pre>"; print_r($ex); echo "</pre>"; 
     } 
     throw ($ex); 
    } 
    // the return type i'm not sure of 
    return get_object_vars($obj);  
} 

和我試着像這樣訪問

<?php echo $this->featured_article->data["id"]; ?> 

我的財產，但我得到一個致命的錯誤： 注意：試圖獲取第27行的C：\ wamp \ www \ winepress \ www \ templates \ home.tpl.php中非對象的屬性

並且這是我的var轉儲

array (size=8) 
    'db' => 
    object(PDO)[1] 
    'id' => int 2 
    'data' => 
    array (size=11) 
     'id' => int 2 
     'category_id' => int 1 
     'user_id' => int 6 
     'username' => string 'kirk' (length=4) 
     'title' => string 'In ultricies, tortor in placerat dignissim, sapien leo feugiat augue' (length=68) 
     'description' => string 'In suscipit orci ac turpis ultricies tincidunt. Quisque volutpat turpis ut leo interdum sodales. Sed fermentum magna consequat ante ultrices, a egestas est posuere. Phasellus varius massa in est sollicitudin laoreet' (length=215) 
     'content' => string '<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In suscipit orci ac turpis ultricies tincidunt. Quisque volutpat turpis ut leo interdum sodales. Sed fermentum magna consequat ante ultrices, a egestas est posuere. Phasellus varius massa in est sollicitudin laoreet. Maecenas sit amet consequat orci. Aliquam pharetra ante sit amet urna volutpat feugiat. Praesent sed sapien in est pellentesque mollis. Proin nisl felis, imperdiet quis nunc at, bibendum sagittis elit. Vestibulum in arcu quis est phare'... (length=3214) 
     'created_date' => string '2014-07-10 14:05:55' (length=19) 
     'featured' => int 1 
     'enable_comments' => int 0 
     'photo' => 
     object(Image)[6] 
      public 'verbose_debug' => boolean false 
      public 'error' => string '' (length=0) 
      public 'errno' => int 0 
      public 'filename' => string 'images/articles/pic_2.jpg' (length=25) 
      public 'mimetype' => string 'image/jpeg' (length=10) 
      public 'width' => int 484 
      public 'height' => int 266 
      public 'htmlDimensions' => string 'width="484" height="266"' (length=24) 
      public 'getimagesize_data' => 
      array (size=7) 
       ... 
      public 'getimagesize_info' => 
      array (size=0) 
       ... 
      protected 'files_superglobal_entry' => null 
      public 'thumbnailJpegQuality' => int 85 
    'allowedFields' => 
    array (size=11) 
     0 => string 'id' (length=2) 
     1 => string 'category_id' (length=11) 
     2 => string 'user_id' (length=7) 
     3 => string 'username' (length=8) 
     4 => string 'title' (length=5) 
     5 => string 'description' (length=11) 
     6 => string 'content' (length=7) 
     7 => string 'created_date' (length=12) 
     8 => string 'featured' (length=8) 
     9 => string 'enable_comments' (length=15) 
     10 => string 'photo' (length=5) 
    'validation' => 
    array (size=4) 
     'title' => 
     array (size=2) 
      0 => string 'Validation::checkRequired' (length=25) 
      1 => string 'Validation::checkName' (length=21) 
     'description' => 
     array (size=1) 
      0 => string 'Validation::checkRequired' (length=25) 
     'content' => 
     array (size=1) 
      0 => string 'Validation::checkRequired' (length=25) 
     'photo' => 
     array (size=1) 
      0 => string 'ArticleModel::checkPhotoIsImageObject' (length=37) 
    'input' => 
    array (size=11) 
     'id' => int 2 
     'category_id' => int 1 
     'user_id' => int 6 
     'photo' => string 'pic_2.jpg' (length=9) 
     'title' => string 'In ultricies, tortor in placerat dignissim, sapien leo feugiat augue' (length=68) 
     'description' => string 'In suscipit orci ac turpis ultricies tincidunt. Quisque volutpat turpis ut leo interdum sodales. Sed fermentum magna consequat ante ultrices, a egestas est posuere. Phasellus varius massa in est sollicitudin laoreet' (length=215) 
     'content' => string '<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In suscipit orci ac turpis ultricies tincidunt. Quisque volutpat turpis ut leo interdum sodales. Sed fermentum magna consequat ante ultrices, a egestas est posuere. Phasellus varius massa in est sollicitudin laoreet. Maecenas sit amet consequat orci. Aliquam pharetra ante sit amet urna volutpat feugiat. Praesent sed sapien in est pellentesque mollis. Proin nisl felis, imperdiet quis nunc at, bibendum sagittis elit. Vestibulum in arcu quis est phare'... (length=3214) 
     'created_date' => string '2014-07-10 14:05:55' (length=19) 
     'featured' => int 1 
     'enable_comments' => int 0 
     'username' => string 'kirk' (length=4) 
    'debugOutput' => null 
    'errors' => 
    array (size=11) 
     'id' => string '' (length=0) 
     'category_id' => string '' (length=0) 
     'user_id' => string '' (length=0) 
     'username' => string '' (length=0) 
     'title' => string '' (length=0) 
     'description' => string '' (length=0) 
     'content' => string '' (length=0) 
     'created_date' => string '' (length=0) 
     'featured' => string '' (length=0) 
     'enable_comments' => string '' (length=0) 
     'photo' => string '' (length=0) 

我如何accesss我的數據屬性和回聲出我的數據是這樣

<?php echo $this->featured_article->data["id"]; ?> 

Answer 1

你嘗試用

featured_article->data 

訪問類財產，但根據您的var_dump輸出你有一個數組。

所以，你必須與

featured_article['data'] 

訪問它所以你行應

<?php echo $this->featured_article['data']['id']; ?>