PHP：通过数字

Question

的列表循环我有一个数组，像这样：

Array (
[0] => stdClass Object ([ID] => 1 [user_id] => 1 [post_id] => 929,924,875,839,850,720,642,1109,917,935,911,1174,1173,1172,903,892,1189,865,1386) 
[1] => stdClass Object ([ID] => 2 [user_id] => 75 [post_id] => 903,704,477,9,455) 
[2] => stdClass Object ([ID] => 3 [user_id] => 78 [post_id] => 917,911) 
[3] => stdClass Object ([ID] => 4 [user_id] => 80 [post_id] => 903,1109,642) 
) 

我写了一个foreach循环遍历每个元素：

$apples = $wpdb->get_results("SELECT ID, user_id, post_id FROM table_name"); 

foreach ($apples as $apple) 
    { 
     $user_info = get_userdata($apple->user_id); 
     $post_title = get_the_title($apple->post_id); 

     echo '<ul><li>' . $user_info->user_login . '</li>'; 
     echo '<li>' . $post_title . '</li>'; 
     echo '</ul>'; 
    } 

我如何循环浏览[post_id]中的每个ID？现在它只显示[post_id]中第一个数字的标题。不过，我需要它循环每一个。有任何想法吗？

Answer 1

喜欢的东西：

<?php 
... 
foreach(explode(',', $apple->post_id) as $post_id) { 
// Do your stuff 
} 

会做

Answer 2

您可以尝试

foreach ($apples as $apple) { 
    $user_info = get_userdata($apple->user_id); 
    echo '<h4>' . $user_info->user_login . '<h4>'; 
    echo "<ul>"; 
    foreach (explode(",", $apple->post_id) as $postID) { 
     printf('<li>%s</li>', get_the_title($postID)); 
    } 
    echo '</ul>'; 
}