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Feb 1st, 2012
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PHP 2.04 KB | None | 0 0
  1. <?php
  2.    
  3.     $comments = array(
  4.         array(
  5.             'id' => 1,
  6.             'parent_id' => 0,
  7.             'body' => 'Some comment',
  8.             'created' => 123456798,
  9.         ),
  10.         array(
  11.             'id' => 2,
  12.             'parent_id' => 0,
  13.             'body' => 'Some comment',
  14.             'created' => 123456798,
  15.         ),
  16.         array(
  17.             'id' => 3,
  18.             'parent_id' => 0,
  19.             'body' => 'Some comment',
  20.             'created' => 123456798,
  21.         ),
  22.         array(
  23.             'id' => 4,
  24.             'parent_id' => 0,
  25.             'body' => 'Some comment',
  26.             'created' => 123456798,
  27.         ),
  28.         array(
  29.             'id' => 5,
  30.             'parent_id' => 2,
  31.             'body' => 'Some comment',
  32.             'created' => 123456798,
  33.         ),
  34.         array(
  35.             'id' => 6,
  36.             'parent_id' => 2,
  37.             'body' => 'Some comment',
  38.             'created' => 123456798,
  39.         ),
  40.  
  41.     );
  42.  
  43.    
  44.     $thread = array();
  45.     $comment_refs = array();
  46.     foreach($comments as $comment){
  47.         $parent_id = $comment['parent_id'];
  48.         $comment_id = $comment['id'];
  49.  
  50.         if (!isset($comment_refs[$parent_id])) {
  51.             // No parent comment so just add it to the thread
  52.             $thread[] = $comment;
  53.             $tmp_key = count($thread) - 1;
  54.            
  55.             // Add a replies element to hold any future replies
  56.             $thread[$tmp_key]['replies'] = array();
  57.  
  58.             // Make a reference to this comment so we can find it later
  59.             $comment_refs[$comment_id] = &$thread[count($thread)-1];
  60.  
  61.         } else {
  62.             // Parent comment available, so add it there
  63.             $comment_refs[$parent_id]['replies'][] = $comment;
  64.            
  65.             // Make a reference to this comment so we can find it later
  66.             $replies = &$comment_refs[$parent_id]['replies'];
  67.             $comment_refs[$comment_id] = &$replies[count($replies)-1];
  68.         }
  69.     }
  70.  
  71.     unset($comment_refs);
  72.     print_r($thread);
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