• 實(shí)現(xiàn)教程

function ReplaceKeyword($kw,&$body)

{

...中間代碼省略

}

function ReplaceKeyword($kw,&$body)

{

global $cfg_replace_num;

//如果當(dāng)前文檔沒(méi)有tag直接不內(nèi)鏈，需要匹配所有tag的話(huà)，刪除下面行

if(GetTags($this->Fields['aid']) == '') return $body;

$search = "/(alt\s*=\s*|title\s*=\s*|src\s*=\s*)[\"|\'](.+?)[\"|\']/is";

$body = preg_replace_callback($search, array('Archives', '_base64_encode'), $body);

$addsql = '';

$this->dsql->SetQuery("SELECT tid FROM `58pic_taglist` WHERE aid = '{$this->Fields['aid']}' ");

$this->dsql->Execute();

$ids = '';

while($row = $this->dsql->GetArray())

{

$ids .= ( $ids=='' ? $row['tid'] : ','.$row['tid'] );

}

if($ids != '')

{

$addsql = " WHERE id IN($ids) ";

}

$query = "SELECT * FROM `58pic_tagindex` $addsql ORDER BY addtime DESC";

$this->dsql->SetQuery($query);

$this->dsql->Execute();

$linkdatas = array();

while($row = $this->dsql->GetArray())

{

$row['keyword'] = $row['tag'];

$row['rpurl'] = $cfg_cmsurl."/tags.php?/".urlencode($row['tag'])."/";

$linkdatas[] = $row;

}

if($linkdatas) {

$word = $replacement = array();

foreach($linkdatas as $v) {

$word0[] = "/<a[^>]*>{$v['keyword']}<\/a>/is";

$word1[] = '/'.$v['keyword'].'/is';

$word2[] = $v['keyword'];

$replacement[] = '<a href="'.$v['rpurl'].'" target="_blank">'.$v['keyword'].'</a>';

}

if($cfg_replace_num) {

$body = preg_replace($word0, $word2, $body, $cfg_replace_num);

$body = preg_replace($word1, $replacement, $body, $cfg_replace_num);

} else {

$body = str_replace($word2, $replacement, $body);

}

}

$body = preg_replace_callback($search, array('Archives', '_base64_decode'), $body);

return $body;

}

function _base64_encode($matches) {

return $matches[1]."\"".base64_encode($matches[2])."\"";

}

function _base64_decode($matches) {

return $matches[1]."\"".base64_decode($matches[2])."\"";

} 

$cfg_cmsurl."/tags.php?/".urlencode($row['tag'])."/";