修改文件：/include/arc.archives.class.php
找到大约1230行：
// 这里可能会有错误
if (version_compare(PHP_VERSION, '5.5.0', '>='))
{
print_r($kaarr);
$body = @preg_replace_callback("#(^|>)([^<]+)(?=<|$)#sU", "_highlight('\\2', \$karr, \$kaarr, '\\1')", $body);
} else {
$body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe", "_highlight('\\2', \$karr, \$kaarr, '\\1')", $body);
}
替换成：
if (version_compare(PHP_VERSION, '5.5.0', '>='))
{
global $cfg_replace_num;
//$body = @preg_replace_callback("#(^|>)([^<]+)(?=<|$)#sU", "_highlight('\\2', \$karr, \$kaarr, '\\1')", $body);
if($cfg_replace_num > 0)
{
$query = "SELECT * FROM #@__keywords WHERE rpurl<>'' ORDER BY rank 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 * FROM #@__keywords WHERE rpurl<>'' ORDER BY rank 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);
}
}
} else {
$body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe", "_highlight('\\2', \$karr, \$kaarr, '\\1')", $body);
}
接着查找：
//高亮专用, 替换多次是可能不能达到最多次 function _highlight($string, $words, $result, $pre)
在其上面增加
//指定替换次数功能
function str_replace_limit($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);
}
OK，DEDE后台系统设置——性能设置——使用关键词关连文章——选择是
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