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| /*增加关键词*/
function into_key($actileid){
//获得文章内容
$dsql = new DedeSql(false);
$row = $dsql->GetOne("SELECT * FROM `#@__addonarticle` WHERE `aid` = {$actileid} LIMIT 0, 1");
$actile = $row['body'];
//判断是否存在关键词
$keywords=array("扎金花","炸金花","诈金花","扎金花游戏大厅","同城游戏大厅下载","梭哈","梭哈游戏","梭哈游戏下载","58w同城游");
$keyword=" <a href='http://www.58w.cn/'>"."<b>".$keywords[mt_rand(0,count($keywords)-1)]."</b>"."</a> <span>www.58w.cn<span>";
foreach ($keywords as $k => $v){
$is_word='';
$keyw='';
$keyw="<b>".$v."</b>";
if(strstr($actile,$keyw)){
$is_word=1;
continue;
}else $is_word=0;
}
//判断是否存在url
$keyurls=array("www.58w.cn","www.sky58.com","www.yes58.net/58w","www.pk28.com");
$keyurl=" <font style='color:#fff'>".$keyurls[mt_rand(0,count($keyurls)-1)]."</font>";
if(strstr($actile,'<span>www.58w.cn<span>'))$is_url=1;
else $is_url=0;
//分离文章
$str=preg_replace('/<p(.*)>/isU','',$actile);
$arr=explode('</p>',$str);
$arr=array_remove_empty($arr);
//随机加粗文章段落
$txtnum=mt_rand(0,count($arr)-1);
$arr[$txtnum]='<b>'.$arr[$txtnum].'</b>';
//加入关键词
if($is_word==0){
$key=count($arr)-1;
$arr[$key]=$arr[$key].$keyword;
}
//加入url
if($is_url==0){
$urlnume=mt_rand(0,count($arr)-1);
$arr[$urlnume]=$arr[$urlnume].$keyurl;
}
//合并文章
foreach ($arr as $k => $v){
$arr[$k]='<p>'.$arr[$k].'</p>';
}
$actile=implode('',$arr);
//添加锚文本,以tag为准
$actile=txt_url($actile,$row['aid']);
//返回文章
return $actile;
}
function txt_url($actile,$aid){
//得到文章tags，以tid排序
$dsql = new DedeSql(false);
$query = "SELECT * FROM `#@__taglist` WHERE aid='$aid' order by tid asc";
$dsql->Execute('tag',$query);
$i=0;
while($row = $dsql->GetArray('tag'))
{
$i++;
$tags[$i]['tag'] = $row['tag'];
$tags[$i]['tid'] = $row['tid'];
}//print_r($tags);echo '<hr>';
//得到相关tags随机文章id，先搜索tid靠前的tag相关文章
$j=0;
foreach ($tags as $k => $v) {
$query = "SELECT * FROM `#@__taglist` WHERE `tid` = '{$v['tid']}' and aid != {$aid}";
$dsql->SetQuery($query);
$dsql->Execute();
$arraid=array();
while($row = $dsql->GetArray())
{
$arraid[] = $row['aid'];
}
if(empty($arraid))continue;
else{
$j++;
shuffle($arraid);
$newtag[$j]['aid']=$arraid['0'];
$newtag[$j]['tag']=$v['tag'];
continue;
}
}//print_r($newtag);echo '<hr>';
//得到相应文章的url访问规则和文章标题
foreach ($newtag as $k => $v){
$row = $dsql->GetOne("Select arc.title as title,t.typedir as dir from `#@__archives` arc left join #@__arctype t on arc.typeid=t.id where arc.id={$v['aid']}");
$urldir = $row['dir'];
$urltitle = $row['title'];
$row['dir']=str_replace('{cmspath}','http://www.58w.cn',$row['dir']);
$trueurl=$row['dir'].'/'.$v['aid'].'.html';
$newtag[$k]['link']="<a href='{$trueurl}' title='{$urltitle}'>".$v['tag']."</a>";
} //print_r($newtag);echo '<hr>';
//提取超链接，图片等html标签，以免将超链接里面title或alt含有的关键词替换掉
$pat1 = '/<a(.*)<\/a>/isU';
$pat2 = '/<img(.*)>/isU';
$pat3 = '/<font(.*)<\/font>/isU';
$alink1=get_html($pat1,$actile);
$alink2=get_html($pat2,$actile);
$alink3=get_html($pat3,$actile);
$alink=array_merge($alink1,$alink2,$alink3);
foreach ($alink as $k => $v){
$actile=str_replace($v,'/*/'.$k.'/*/',$actile);
}
//用锚文本替换关键词，只替换一次,只替换一个关键词
foreach ($newtag as $k => $v){
if(!strstr($actile,$v['tag']))continue;
else {
$actile=preg_replace("/{$v['tag']}/","{$v['link']}",$actile,'1');
break;
}
} //print_r($alink);echo '<hr>';
//将超链接，图片等还原
foreach ($alink as $k => $v){
$actile=str_replace('/*/'.$k.'/*/',$v,$actile);
}
return $actile;
}
/*提取超链接，图片等html标签*/
function get_html($pat,$actile){
preg_match_all($pat, $actile, $match);
return $match['0'];
}
/*去除空数组*/
function array_remove_empty(&$arr, $trim = true)
{
foreach ($arr as $key => $value) {
if (is_array($value)) {
array_remove_empty($arr[$key]);
} else {
$value = trim($value);
$value = str_replace(' ','',$value);
if ($value == '') {
unset($arr[$key]);
} elseif ($trim) {
$arr[$key] = $value;
}
}
}
$arr=array_values($arr);
return $arr;
} |