擺脫尾隨逗號（PHP）

Question

最後一行是它不起作用的地方。我不知道應該去那裏，而不是$post。

if (isset($_COOKIE["WP-LastViewedPosts"])) { 
    //echo "Cookie was set.<br/>"; // For bugfixing - uncomment to see if cookie was set 
    //echo $_COOKIE["WP-LastViewedPosts"]; // For bugfixing (cookie content) 
    $zg_post_IDs = unserialize(preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", stripslashes($_COOKIE["WP-LastViewedPosts"]))); // Read serialized array from cooke and unserialize it 
    foreach ($zg_post_IDs as $value) { // Do output as long there are posts 
     global $wpdb; 
     $zg_get_title = $wpdb->get_results("SELECT post_title FROM $wpdb->posts WHERE ID = '$value+0' LIMIT 1"); 
     foreach($zg_get_title as $post) { 
      echo "<a href=\"". get_permalink($value+0) . "\" title=\"". apply_filters('the_title',$post->post_title) . "\">". apply_filters('the_title',$post->post_title) . "</a> \n"; // Output link and title 
      echo implode(', ', $post); 
     } 
    } 

Answer 1

根據您的意見這樣做的，一個辦法：

foreach ($zg_get_title as $post) 
{ 
    $title = apply_filters('the_title', $post->post_title); 
    $posts[] = '<a href="'.get_permalink($value).'" title="'.$title.'">'.$title.'</a>'; 
} 

echo implode(', ', $posts);