织梦DEDECMS5.7实现联动筛选（支持多条件多级选项）

很多织梦建站的站长在做产品列表页的时候，产品分类多而且都是关联的，用户不能快速的找到自己需要的东西，很多情况下都需要用到筛选功能，织梦后台列表页默认是没有联动筛选功能，实现这个联动筛选功能需要对织梦进行二次开发，接下来教大家如何实现这个联动筛选功能，如下图所示：

注：因为织梦默认是禁止使用php标签，所以需要在后台模板引擎禁用标签里面解除这个标签的禁用，具体方法： 后台——系统——系统基本参数——其它选项——模板引擎禁用标签：php 将这个PHP去掉后保存就可以了！
第一步：修改include目录下arc.listview.class.php，修改地方很多，下载地址为：

第二步：打开include目录下extend.func.php文件在底部加入以下代码：
  

//dedecms联动筛选功能 By function wwwcms_filter($str,$stype="inject") { if ($stype=="inject") { $str = str_replace( array( "select", "insert", "update", "delete", "alter", "cas", "union", "into", "load_file", "outfile", "create", "join", "where", "like", "drop", "modify", "rename", "'", "/*", "*", "../", "./"), array("","","","","","","","","","","","","","","","","","","","","",""), $str); } else if ($stype=="xss") { $farr = array("/\s+/" , "/<(\/?)(script|META|STYLE|HTML|HEAD|BODY|STYLE |i?frame|b|strong|style|html|img|P|o:p|iframe|u |em|strike|BR|div|a|TABLE|TBODY|object|tr|td |st1:chsdate|FONT|span|MARQUEE|body|title |\r\n|link |meta|\?|\%)([^>]*?)>/isU", "/(<[^>]*)on[a-zA-Z]+\s*=([^>]*>)/isU", ); $tarr = array(" ", "", "\\1\\2", ); $str = preg_replace($farr, $tarr, $str); $str = str_replace( array( "<", ">", "'", "\"", ";", "/*", "*", "../", "./"), array("&lt;","&gt;","","","","","","",""), $str); } return $str; } /** * 载入自定义表单(用于发布) * * @access public * @param string $fieldset 字段列表 * @param string $loadtype 载入类型 * @return string */ function AddFilter($channelid, $type=1, $fieldsnamef, $defaulttid, $loadtype='autofield') { global $tid,$dsql,$id; $tid = $defaulttid ? $defaulttid : $tid; if ($id!="") { $tidsq = $dsql->GetOne(" Select typeid From `dede_archives` where id='$id' "); $tid = $tidsq["typeid"]; } $nofilter = (isset($_REQUEST['TotalResult']) ? "&TotalResult=".$_REQUEST['TotalResult'] : '').(isset($_REQUEST['PageNo']) ? "&PageNo=".$_REQUEST['PageNo'] : ''); $filterarr = wwwcms_filter(stripos($_SERVER['REQUEST_URI'], "list.php?tid=") ? str_replace($nofilter, '', $_SERVER['REQUEST_URI']) : $GLOBALS['cfg_cmsurl']."/plus/list.php?tid=".$tid); $cInfos = $dsql->GetOne(" Select * From `dede_channeltype` where id='$channelid' "); $fieldset=$cInfos['fieldset']; $dtp = new DedeTagParse(); $dtp->SetNameSpace('field','<','>'); $dtp->LoadSource($fieldset); $dede_addonfields = ''; if(is_array($dtp->CTags)) { foreach($dtp->CTags as $tid=>$ctag) { $fieldsname = $fieldsnamef ? explode(",", $fieldsnamef) : explode(",", $ctag->GetName()); if(($loadtype!='autofield' || ($loadtype=='autofield' && $ctag->GetAtt('autofield')==1)) && in_array($ctag->GetName(), $fieldsname) ) { $href1 = explode($ctag->GetName().'=', $filterarr); $href2 = explode('&', $href1[1]); $fields_value = $href2[0]; $dede_addonfields .= '<dl><dt>'.$ctag->GetAtt('itemname').'：</dt><dd>'; switch ($type) { case 1: $dede_addonfields .= (preg_match("/&".$ctag->GetName()."=http://www.dede58.com/is",$filterarr,$regm) ? '<a title="全部" href="'.str_replace("&".$ctag->GetName()."=".$fields_value,"",$filterarr).'">全部</a>' : '<dd><a class="on">全部</a>').'&nbsp;'; $addonfields_items = explode(",",$ctag->GetAtt('default')); for ($i=0; $i<count($addonfields_items); $i++) { $href = stripos($filterarr,$ctag->GetName().'=') ? str_replace("=".$fields_value,"=".urlencode($addonfields_items[$i]),$filterarr) : $filterarr.'&'.$ctag->GetName().'='.urlencode($addonfields_items[$i]);//echo $href; $dede_addonfields .= ($fields_value!=urlencode($addonfields_items[$i]) ? '<a title="'.$addonfields_items[$i].'" href="'.$href.'">'.$addonfields_items[$i].'</a>' : '<a class="on">'.$addonfields_items[$i].'</a>')."&nbsp;"; } $dede_addonfields .= '</dl>'; break; case 2: $dede_addonfields .= '<select name="filter"'.$ctag->GetName().' onchange="window.location=this.options[this.selectedIndex].value"> '.'<option value="'.str_replace("&".$ctag->GetName()."=".$fields_value,"",$filterarr).'">全部</option>'; $addonfields_items = explode(",",$ctag->GetAtt('default')); for ($i=0; $i<count($addonfields_items); $i++) { $href = stripos($filterarr,$ctag->GetName().'=') ? str_replace("=".$fields_value,"=".urlencode($addonfields_items[$i]),$filterarr) : $filterarr.'&'.$ctag->GetName().'='.urlencode($addonfields_items[$i]); $dede_addonfields .= '<option value="'.$href.'"'.($fields_value==urlencode($addonfields_items[$i]) ? ' selected="selected"' : '').'>'.$addonfields_items[$i].'</option> '; } $dede_addonfields .= '</select><br/> '; break; } } } } echo $dede_addonfields; }