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php与css 标签云效果

WBOY
Lepaskan: 2016-07-25 08:56:46
asal
958 orang telah melayarinya
  1. function createTagCloud($tags)
  2. {
  3. //I pass through an array of tags
  4. $i=0;
  5. foreach($tags as $tag)
  6. {
  7. $id = $tag['id']; //the tag id, passed through
  8. $name = $tag['tag']; //the tag name, also passed through in the array
  9. //using the mysql count command to sum up the tutorials tagged with that id
  10. $sql = "SELECT COUNT(*) AS totalnum FROM tutorials WHERE tags LIKE '%".$id."%' AND published = 1";
  11. //create the resultset and return it
  12. $res = mysql_query($sql);
  13. $res = mysql_fetch_assoc($res);
  14. //check there are results ;)
  15. if($res)
  16. {
  17. //build an output array, with the tag-name and the number of results
  18. $output[$i]['tag'] = $name;
  19. $output[$i]['num'] = $res['totalnum'];
  20. }
  21. $i++;
  22. }
  23. /*this is just calling another function that does a similar SQL statement, but returns how many pieces of content I have*/
  24. $total_tuts = $this->getNumberOfTutorials();
  25. //ugh, XHTML in PHP? Slap my hands - this isn't best practice, but I was obviously feeling lazy
  26. $html = '
      ';
    • //iterate through each item in the $output array (created above)
    • foreach($output as $tag)
    • {
    • //get the number-of-tag-occurances as a percentage of the overall number
    • $ratio = (100 / $total_tuts) * $tag['num'];
    • //round the number to the nearest 10
    • $ratio = round($ratio,-1);
    • /*append that classname onto the list-item, so if the result was 20%, it comes out as cloud-20*/
    • $html.= '
    • '.$tag['tag'].'
    • ';
    • }
    • //close the UL
    • $html.= '
    ';
  27. return $html;
  28. }
复制代码

2,css代码部分 /*删除默认的列表样式,使之成为一个普通的清单列表*/

  1. .home-item ul.tagcloud
  2. {
  3. list-style-type:none;
  4. margin:0px;
  5. padding:0px;
  6. }
  7. /*设置li的样式*/
  8. .home-item ul.tagcloud li
  9. {
  10. display:inline !important;
  11. margin-right:15px;
  12. line-height:2em;
  13. }
  14. .home-item ul.tagcloud li a
  15. {
  16. display:inline;
  17. }
  18. /*标签云的效果*/
  19. .home-item ul.tagcloud li.cloud-10 a
  20. {
  21. font-size:110%;
  22. }
  23. .home-item ul.tagcloud li.cloud-20 a
  24. {
  25. font-size:120%;
  26. }
  27. .home-item ul.tagcloud li.cloud-30 a
  28. {
  29. font-size:130%;
  30. }
  31. /*************************************
  32. you get the idea, i'm skipping a few
  33. *************************************/
  34. .home-item ul.tagcloud li.cloud-90 a
  35. {
  36. font-size:190%;
  37. }
  38. .home-item ul.tagcloud li.cloud-100 a
  39. {
  40. font-size:200%;
  41. }
复制代码


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