php5.5以上dedecms关键词內链无法使用及关键词长短

2019-06-24 10:04:32 济南网站建设
dedecms关键词内链开启步骤
 
后台-系统-核心设置-关键字替换  【是】
 
后台-系统-其他选项-关键词替换次数  【1】
 
织梦关键词长短优先级问题
 
比如有“济南网站建设”、“济南网站建设公司”、“济南营销型网站建设”,同时在一篇文章中出现,程序会优先使用短的词。
 
 
 
解决关键词长短优先级问题的方法
 
打开 /include/arc.archives.class.php 找到
 
$query = "SELECT * FROM dede_keywords WHERE rpurl<>'' ORDER BY rank DESC";
 
改成
 
$query = "SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl<>'' ORDER BY num DESC";
 
 
 
继续找到
 
"#".preg_quote($word)."#"
 
改成
 
"#(?<!>)(?!<)".preg_quote($word)."#"
 
完成
 
 
 
PHP版本高于5.5无法使用关键词內链的解决方法
 
打开 /include/arc.archives.class.php 找到
 
$body = @preg_replace_callback("#(^|>)([^<]+)(?=<|$)#sU", "_highlight('', $karr, $kaarr, '')", $body);
 
改成
 
global $cfg_replace_num;
if($cfg_replace_num > 0)
{
$query = "SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl<>'' ORDER BY num DESC";
$this->dsql->SetQuery($query);
$this->dsql->Execute();
while($row = $this->dsql->GetArray())
{
$key = trim($row['keyword']);
$key_url=trim($row['rpurl']);
$body = str_replace_limit($key, "<a href='$key_url' target='_blank'><u>$key</u></a>", $body, $cfg_replace_num);
}
}
else
{
$query = "SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl<>'' ORDER BY num DESC";
$this->dsql->SetQuery($query);
$this->dsql->Execute();
while($row = $this->dsql->GetArray())
{
$key = trim($row['keyword']);
$key_url=trim($row['rpurl']);
$body = str_replace($key, "<a href='$key_url' target='_blank'><u>$key</u></a>", $body);
}
}
继续找到
 
//高亮专用
 
在它上面加入
 
//指定替换次数功能
function str_replace_limit($search, $replace, $subject, $limit)
{
if(is_array($search))
{
foreach($search as $k=>$v)
{
$search[$k] = '#(?<!>)(?!<)'. preg_quote($search[$k], '#'). '#';
}
}
else
{
$search = '#(?<!>)(?!<)'. preg_quote($search, '#'). '#';
}
return preg_replace($search, $replace, $subject, $limit);
}