Example analysis of methods to implement search class encapsulation in PHP

This article mainly introduces the example of PHP search class encapsulation in detail. Interested friends can refer to it

The specific content is as follows

<?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 &#39;lib/XS.php&#39;;
    //初始化
    $xs = new XS($project); 
    $this->_project = $project;
    $this->_xindex = $xs->index; 
    $this->_xsearch = $xs->search;
    $this->_xsearch->setCharset(&#39;UTF-8&#39;);
  }
 
  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][&#39;pid&#39;] = $doc->pid;
        $data[$key][&#39;nid&#39;] = $doc->nid;
        $data[$key][&#39;category&#39;] = $doc->category;
        $data[$key][&#39;url&#39;] = $doc->url;
        $data[$key][&#39;name&#39;] = $xs->search->highlight(htmlspecialchars($doc->name));
        $data[$key][&#39;message&#39;] = $xs->search->highlight(htmlspecialchars($doc->message));
      }
 
      return array(&#39;data&#39;=>$data,&#39;count&#39;=>$count);
    }
    return array();
  }
 
  public function hotWord($num,$type=&#39;lastnum&#39;){
 
    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(&#39;1&#39;,&#39;2&#39;,&#39;3&#39;))
    $this->_xindex->del($idArray); 
  }
 
  public function addSynonym($word1,$word2){
 
    $this->_xindex->addSynonym($word1,$word2);
  }
 
  public function clearIndex(){
 
    $this->_xindex->clean();
  }
 
}
 
?>

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