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想在首页添加浏览排行功能，却发现Phpcms竟然不支持调用全站文章排行。仔细研究了Phpcms源码，终于找到解决办法。
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默认情况下，Phpcms只支持调用当前文章排行，代码如下：
{pc:content action="hits" catid="$catid" num="10" order="views DESC" cache="3600"}
其中$catid为待调用栏目的id，如果想实现全站调用，需要修改phpcms\modules\content\classes\content_tag.class.php文件，找到以下函数：
/**
* 排行榜标签
* @param $data
*/
public function hits($data) {
$catid = intval($data['catid']);
if(!$this->set_modelid($catid)) return false;
$this->hits_db = pc_base::load_model('hits_model');
$sql = $desc = $ids = '';
$array = $ids_array = array();
$order = $data['order'];
$hitsid = 'c-'.$this->modelid.'-%';
$sql = "hitsid LIKE '$hitsid'";
if(isset($data['day'])) {
$updatetime = SYS_TIME-intval($data['day'])*86400;
$sql .= " AND updatetime>'$updatetime'";
}
if($this->category[$catid]['child']) {
$catids_str = $this->category[$catid]['arrchildid'];
$pos = strpos($catids_str,',')+1;
$catids_str = substr($catids_str, $pos);
$sql .= " AND catid IN ($catids_str)";
} else {
$sql .= " AND catid='$catid'";
}
$hits = array();
$result = $this->hits_db->select($sql, '*', $data['limit'], $order);
foreach ($result as $r) {
$pos = strpos($r['hitsid'],'-',2) + 1;
$ids_array[] = $id = substr($r['hitsid'],$pos);
$hits[$id] = $r;
}
$ids = implode(',', $ids_array);
if($ids) {
$sql = "status=99 AND id IN ($ids)";
} else {
$sql = '';
}
$this->db->table_name = $this->tablename;
$result = $this->db->select($sql, '*', $data['limit'],'','','id');
foreach ($ids_array as $id) {
if($result[$id]['title']!='') {
$array[$id] = $result[$id];
$array[$id] = array_merge($array[$id], $hits[$id]);
}
}
return $array;
}
修改代码（见注释）：
/**
* 排行榜标签
* @param $data
*/
public function hits($data) {
$catid = intval($data['catid']);
if(!empty($catid) && $catid>0) { //添加判断：id是否为空
if(!$this->set_modelid($catid)) return false;
}
$this->hits_db = pc_base::load_model('hits_model');
$sql = $desc = $ids = '';
$array = $ids_array = array();
$order = $data['order'];
$hitsid = 'c-'.$this->modelid.'-%';
$sql = "hitsid LIKE '$hitsid'";
if(isset($data['day'])) {
$updatetime = SYS_TIME-intval($data['day'])*86400;
$sql .= " AND updatetime>'$updatetime'";
}
if(!emptyempty($catid) && $catid>0) { //添加判断：id是否为空
if($this->category[$catid]['child']) {
$catids_str = $this->category[$catid]['arrchildid'];
$pos = strpos($catids_str,',')+1;
$catids_str = substr($catids_str, $pos);
$sql .= " AND catid IN ($catids_str)";
} else {
$sql .= " AND catid='$catid'";
}
}
$hits = array();
$result = $this->hits_db->select($sql, '*', $data['limit'], $order);
foreach ($result as $r) {
$pos = strpos($r['hitsid'],'-',2) + 1;
$ids_array[] = $id = substr($r['hitsid'],$pos);
$hits[$id] = $r;
}
$ids = implode(',', $ids_array);
if($ids) {
$sql = "status=99 AND id IN ($ids)";
} else {
$sql = '';
}
$this->db->table_name = $this->tablename;
$result = $this->db->select($sql, '*', $data['limit'],'','','id');
foreach ($ids_array as $id) {
if($result[$id]['title']!='') {
$array[$id] = $result[$id];
$array[$id] = array_merge($array[$id], $hits[$id]);
}
}
return $array;
}
修改代码后，无论设置栏目id为0或空，都能调取全站文章排行。
调用方法1：
{pc:content action="hits" catid="0" num="10" order="views DESC" cache="3600"}
调用方法2：
{pc:content action="hits" num="10" order="views DESC" cache="3600"}
当前名称：phpcmsV9如何调用全站文章排行
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