destoon PHP在文章无缩略图时抓取单张或者多张文章内容图片
1.写一个方法专门做抓取图片。function getImgs($content,$order='ALL'){
$pattern="/<img.*?src=[\'|\"](.*?(?:[\.gif|\.jpg]))[\'|\"].*?[\/]?>/";
preg_match_all($pattern,$content,$match);
if(isset($match)&&!empty($match)){
if($order==='ALL'){
return $match;
}
if(is_numeric($order)&&isset($match[$order])){
return $match[$order];
}
}
return '';
}2.利用查询出列表页的文章ID去查询内容
$result = $db->query("SELECt ".$MOD['fields']." FROM {$table} WHERe $condition ORDER BY $order LIMIT $offset,$pagesize");
while($r = $db->fetch_array($result)) {
if($kw) $r['title'] = str_replace($kw, '<b class="f_red">'.$kw.'</b>', $r['title']);
$r['linkurl'] = mobileurl($moduleid, 0, $r['itemid']);
$r['date'] = timetodate($r[$time], $page < 4 ? 2 : 3);
$lists[] = $r;
}
// 获取内容
foreach($lists as $key=>$val){
$t = $db->query("SELECT content FROM taomodi_article_data_21 WHERe itemid=".$val['itemid']);
while($res = $db->fetch_array($t)){
$content = video5($res['content']);
$content = str_replace('<hr class="de-pagebreak"/>', '', $content);
//调用方法
$val['content'] = getImgs($content);
$lists[$key] = $val;
}
}
// var_dump($lists);die;3.模板中使用
{loop $lists $vv}
<li>
<a href="{$vv}">
<div class="{if count($vv)==1 && !empty($vv)}article_left{/if}">
<dt>{$vv}</dt>
<dd>{php $res = dsubstr($vv['introduce'],'80','...');echo str_replace(' ','',$res);}</dd>
</div>
<div class="{if count($vv)==1 && !empty($vv)}article_right{/if}">
<dd>
{if $vv}
{loop $vv $k $v}
{php if($k >=3) break;}
<img src="{$v}" id="{if count($vv)==1 && !empty($vv)}article_img{/if}"/>
{/loop}
{/if}
</dd>
</div>
<div class="clear"></div>
</a>
</li>
{/loop}
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