對數組進行迭代並顯示結果

Question

如何訪問數組$ value [$ i]的內容。使用下面的表單中的foreach沒有運氣。

想法是遍歷$ contentArray並在每次迭代中顯示每個子數組中的一個項目。

$addsContent = $Adds->selectAdds(10); 
$sharedArticlesContent = $SharedContent->getSharedContent($topic_selected, $filter_selected); 
$blogPostsContent = $BlogPosts->getRecentBlogPostsByTopic("business"); 

$contentArray = array(

    $sharedArticlesContent, 
    $addsContent , 
    $blogPostsContent 
); 


foreach($contentArray as $value) 
    { 
     if(count($value)>$maxLength) 
     { 
      $maxLength = count($value); 
     } 
    } 

for($i=0; $i<$maxLength; $i++) 
{ 
    foreach($contentArray as $value) 
    { 
     if(isset($value[$i])) 
     { 
      if($value==$sharedArticlesContent){ 
       $data = $value[$i]; 
       foreach($sharedArticlesContent as $data){ 

        $post_id = $data['id']; 
        $uploaded_by = $data['uploaded_by']; 
        $text = $data['text']; 
        $image = $data['image']; 

        require 'template1.php'; 

       } 
      }elseif($value==$addsContent){ 
       //template2 
      }else{ 
       //template3 
      } 

     } 

    } 
} 

Answer 1

你這裏處理關聯數組，你可以像訪問：

<?php 

$addsContent = $Adds->selectAdds(10); 
$sharedArticlesContent = $SharedContent->getSharedContent($topic_selected, $filter_selected); 
$blogPostsContent = $BlogPosts->getRecentBlogPostsByTopic("business"); 

$contentArray = array(

$sharedArticlesContent, 
$addsContent , 
$blogPostsContent 
); 


foreach($contentArray as $value) 
{ 
    if(count($value)>$maxLength) 
    { 
     $maxLength = count($value); 
    } 
} 

for($i=0; $i<$maxLength; $i++) 
{ 
foreach($contentArray as $value) 
{ 
    if(isset($value[$i])) 
    { 
     if($value==$sharedArticlesContent) 
     { 
      $post_id = $value[$i]['id']; 
      $uploaded_by = $value[$i]['uploaded_by']; 
      $text = $value[$i]['text']; 
      $image = $value[$i]['image']; 

      require 'template1.php'; 
     } 
     elseif($value==$addsContent) 
     { 
      //template2 
     } 
     else 
     { 
      //template3 
     } 

    } 

} 
} 

Answer 2

你不需要foreach。 $data是一個關聯數組，你不需要循環它。

 if($value==$sharedArticlesContent){ 
      $data = $value[$i]; 
      $post_id = $data['id']; 
      $uploaded_by = $data['uploaded_by']; 
      $text = $data['text']; 
      $image = $data['image']; 

      require 'template1.php'; 
      }