<?php $conditions = array('price','color','metal'); //要进行筛选的字段放在这里 $price = $color = $metal=''; //先给需要筛选的字段赋空值，这些值将输出到页面的hidden fileds中 //以下循环给已经进行的筛选赋值，以便能够在下一次筛选中保留 foreach($conditions as $value){ if(isset($_POST[$value])){ $$value = $_POST[$value]; } } //以下是演示输出$_POST数据 echo '<pre>'; print_r($_POST); echo '</pre>'; ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>分类筛选演示</title> <style type="text/css"> body{font-size:14px;font-family:Tahoma,"宋体"} </style> <script type="text/javascript"> function Filter(a,b){ var $ = function(e){return document.getElementById(e);} var ipts = $('filterForm').getElementsByTagName('input'),result=[]; for(var i=0,l=ipts.length;i<l;i++){ if(ipts[i].getAttribute('to')=='filter'){ result.push(ipts[i]); } } if($(a)){ $(a).value = b; for(var j=0,len=result.length;j<len;j++){ if(result[j].value==''){ result[j].parentNode.removeChild(result[j]); } } document.forms['filterForm'].submit(); } return false; } </script> </head> <body> <form id="filterForm" action="listinfo.php" method="post"> <input to="filter" type="hidden" id="price" name="price" value="<?=$price?>" /> <input to="filter" type="hidden" id="color" name="color" value="<?=$color?>" /> <input to="filter" type="hidden" id="metal" name="metal" value="<?=$metal?>" /> </form> 价格：<a href="javascript:Filter('price','100-1000');">100-1000</a> <a href="javascript:Filter('price','1001-2000');">1001-2000</a> <a href="javascript:Filter('price','2001-3000');">2001-3000</a><br/> 颜色：<a href="javascript:Filter('color','红色');">红色</a> <a href="javascript:Filter('color','蓝色');">蓝色</a><br /> 材质：<a href="javascript:Filter('metal','纯金');">纯金</a> <a href="javascript:Filter('metal','纯银');">纯银</a><br /> </body> </html><br>// 将以上文件保存成listinfo.php运行就是筛选的效果！