欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

php实现搜索类封装示例

程序员文章站 2024-04-01 23:54:28
本文为大家分享了php实现搜索类封装示例,供大家参考,具体内容如下

本文为大家分享了php实现搜索类封装示例,供大家参考,具体内容如下

<?php
/**
 * soclass.php
 * 索引与搜索类 */
 
class soclass {
 
  private $_xindex;
 
  private $_xsearch;
 
  private $_project;
 
  public function __construct($project){
 
    //载入引导文件
    require_once 'lib/xs.php';
    //初始化
    $xs = new xs($project); 
    $this->_project = $project;
    $this->_xindex = $xs->index; 
    $this->_xsearch = $xs->search;
    $this->_xsearch->setcharset('utf-8');
  }
 
  public function query($keyword,$row=20,$jnum=0){
 
    $xs = new xs($this->_project);
    $xs->search->setfuzzy();
    $xs->search->setautosynonyms();
    $xs->search->setquery($keyword); //支持同义词搜索,默认打开
    $xs->search->setlimit($row, $jnum); //设置返回结果最多为 5 条,并跳过前 10 条
    $docs = $xs->search->search(); //执行搜索,将搜索结果文档保存在 $docs 数组中    
    $count = $xs->search->count(); //获取搜索结果的匹配总数估算值
    if($count){
      $data = array();
      foreach ($docs as $key=>$doc){
        $data[$key]['pid'] = $doc->pid;
        $data[$key]['nid'] = $doc->nid;
        $data[$key]['category'] = $doc->category;
        $data[$key]['url'] = $doc->url;
        $data[$key]['name'] = $xs->search->highlight(htmlspecialchars($doc->name));
        $data[$key]['message'] = $xs->search->highlight(htmlspecialchars($doc->message));
      }
 
      return array('data'=>$data,'count'=>$count);
    }
    return array();
  }
 
  public function hotword($num,$type='lastnum'){
 
    return $this->_xsearch->gethotquery($num,$type);
  }
 
  public function expanded($keyword){
 
    return $this->_xsearch->getexpandedquery($keyword);
  }
 
  public function lastcount(){
 
    return $this->_xsearch->getlastcount();
  }
 
  public function index($data,$update=0){
 
    // 创建文档对象
    $doc = new xsdocument;
    $doc->setfields($data);
 
    // 添加或更新到索引数据库中
    if(!$update){
      $this->_xindex->add($doc);
    }else{
      $this->_xindex->update($doc);
    }
  }
 
  public function delete($idarray){
 
    //删除索引(主键删除array('1','2','3'))
    $this->_xindex->del($idarray); 
  }
 
  public function addsynonym($word1,$word2){
 
    $this->_xindex->addsynonym($word1,$word2);
  }
 
  public function clearindex(){
 
    $this->_xindex->clean();
  }
 
}
 
?>

以上就是本文的全部内容,希望对大家学习php程序设计有所帮助。