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。