PHP之多条件混合筛选功能的实现方法

如下所示：

<style type="text/css">

.search_text{ overflow:hidden; height:100%; padding-top:5px; padding-bottom:5px;}
.search_text h1{ color:#6a6a6a; font-weight:bold; float:left; font-size:14px; margin:0px; padding:0px;}
.search_text ul{ margin:0; padding:0; list-style:none; float:left; overflow:hidden; height:100%;}
.search_text li{ list-style:none; color:#6a6a6a; float:left; width:80px; padding-left:8px; padding-right:5px; white-space:nowrap}
.search_text li a{ list-style:none; color:#6a6a6a;}
.search_text li a:hover{ list-style:none; color:#fe8f01; font-weight:bold; text-decoration:underline;}
.search_text li.selected{color:#fe8f01; font-weight:bold;}
.search_text li.selected a{color:#fe8f01;}
.search_text li.selected a:hover{color:#fe8f01;}
</style>

<div class="search_text" id="year">
  <h1>生产年度：</h1>
  <ul>
   <li class="selected"><a href="javascript:goSort('year',0)" rel="external nofollow" >全部</a></li>
   <li><a href="javascript:goSort('year',1)" rel="external nofollow" >2015</a></li>
   <li><a href="javascript:goSort('year',2)" rel="external nofollow" >2014</a></li>
  </ul>
</div>
<div class="search_text" id="ctype">
  <h1>棉花类型：</h1>
  <ul>
   <li class="selected"><a href="javascript:goSort('ctype',0);" rel="external nofollow" >全部</a> </li>
   <li><a href="javascript:goSort('ctype',1);" rel="external nofollow" >手采棉</a></li>
   <li><a href="javascript:goSort('ctype',2);" rel="external nofollow" >机采棉</a></li>
   </li>
  </ul>
</div>
<div class="search_text" id="colors">
  <h1>颜 色 级 ：</h1>
  <ul>
   <li class="selected"><a href="javascript:goSort('colors',0);" rel="external nofollow" >全部</a> </li>
   <li><a href="javascript:goSort('colors',1);" rel="external nofollow" >白棉1级</a></li>
   <li><a href="javascript:goSort('colors',2);" rel="external nofollow" >白棉2级</a></li>
   <li><a href="javascript:goSort('colors',3);" rel="external nofollow" >白棉3级</a></li>
   <li><a href="javascript:goSort('colors',4);" rel="external nofollow" >白棉4级</a></li>
   <li><a href="javascript:goSort('colors',5);" rel="external nofollow" >白棉5级</a></li>
   <li><a href="javascript:goSort('colors',6);" rel="external nofollow" >淡点污棉1级</a></li>
  </ul>
</div>
<div class="search_text" id="lengths">
  <h1>长 度 级 ：</h1>
  <ul>
   <li class="selected"><a href="javascript:goSort('lengths',0);" rel="external nofollow" >全部</a> </li>
   <li><a href="javascript:goSort('lengths',1);" rel="external nofollow" >26CM</a></li>
   <li><a href="javascript:goSort('lengths',2);" rel="external nofollow" >27CM</a></li>
   <li><a href="javascript:goSort('lengths',3);" rel="external nofollow" >28CM</a></li>
   <li><a href="javascript:goSort('lengths',4);" rel="external nofollow" >29CM</a></li>
   <li><a href="javascript:goSort('lengths',5);" rel="external nofollow" >30CM</a></li>
   <li><a href="javascript:goSort('lengths',6);" rel="external nofollow" >31CM</a></li>
   <li><a href="javascript:goSort('lengths',7);" rel="external nofollow" >32CM</a></li>
  </ul>
</div>
<div class="search_text" id="micronaire">
  <h1>马克隆值：</h1>
  <ul>
   <li class="selected"><a href="javascript:goSort('micronaire',0);" rel="external nofollow" >全部</a> </li>
   <li><a href="javascript:goSort('micronaire',1);" rel="external nofollow" >C2</a></li>
   <li><a href="javascript:goSort('micronaire',2);" rel="external nofollow" >B2</a></li>
   <li><a href="javascript:goSort('micronaire',3);" rel="external nofollow" >A</a></li>
   <li><a href="javascript:goSort('micronaire',4);" rel="external nofollow" >B1</a></li>
   <li><a href="javascript:goSort('micronaire',5);" rel="external nofollow" >C1</a></li>
  </ul>
</div>

<script language="javascript">
function getQueryString(){
   var result = location.search.match(new RegExp("[\?\&][^\?\&]+=[^\?\&]+","g"));
   if(result == null){
     return "";
   }
   for(var i = 0; i < result.length; i++){
     result[i] = result[i].substring(1);
   }
   return result;
}
function goSort(name,value){
  var string_array = getQueryString();
  var oldUrl = (document.URL.indexOf("cotton.php")==-1)?document.URL+"cotton.php":document.URL;
  var newUrl;
  if(string_array.length>0)//如果已经有筛选条件
  {  var repeatField = false;
    for(var i=0;i<string_array.length;i++){
      if(!(string_array[i].indexOf(name)==-1)){
        repeatField = true;//如果有重复筛选条件，替换条件值
        newUrl = oldUrl.replace(string_array[i],name+"="+value);
      }
    }
    //如果没有重复的筛选字段
    if(repeatField == false){
      newUrl = oldUrl+"&"+name+"="+value;
    }
  }else{//如果还没有筛选条件
    newUrl = oldUrl+"?"+name+"="+value;
  }
  //跳转
  window.location = newUrl;
}
function setSelected(name,value){
  var all_li = $("#"+name).find("li");
  //清除所有li标签的selected类
  all_li.each(function(){
    $(this).removeClass("selected");
  });
  //为选中的li增加selected类
  all_li.eq(value).addClass("selected");
}
$(document).ready(function(){
  var string_array = getQueryString();
  for(var i=0;i<string_array.length;i++){
    var tempArr = string_array[i].split("=");
    setSelected(tempArr[0],tempArr[1]);//设置选中的筛选条件
  }
});
</script> 

<?php
/**
*加入搜索条件
*/
$where ="1";
$year_array = array(1=>'2015',2=>'2014');
$ctype_array = array(1=>'0',2=>'1');
$colors_array = array(1=>'0',2=>'1',3=>'2',4=>'3',5=>'4',6=>'5');
$lengths_array = array(1=>'0',2=>'1',3=>'2',4=>'3',5=>'4',6=>'5',7=>'6');
$micronaire_array = array(1=>'0',2=>'1',3=>'2',4=>'3',5=>'4');
   
if(isset($year)&&($year!=0)) $where .= " AND year=".$year_array[$year];
if(isset($ctype)&&($ctype!=0)) $where .= " AND ctype=".$ctype_array[$ctype];
if(isset($colors)&&($colors!=0)) $where .= " AND colors=".$colors_array[$colors];
if(isset($lengths)&&($lengths!=0)) $where .= " AND lengths=".$lengths_array[$lengths];
if(isset($micronaire)&&($micronaire!=0)) $where .= " AND micronaire=".$micronaire_array[$micronaire];
/**
*加入搜索条件
*/
?>

PHP中获取到$where条件，加入到SQL语句中获取数据列表。

以上这篇PHP之多条件混合筛选功能的实现方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持易盾网络。