PHP搜索页面怎么实现分类检索

echo join(' - ', $_GET), '<br>';<br />$dict = array(<br />  'area' => array('内地', '港台'),<br />  'type' => array('动作', '爱情'),<br />  'year' => array('2001', '2013'),<br />);<br />foreach($dict as $key=>$item) {<br />  $param = $_GET;<br />  foreach($item as $v) {<br />    $param[$key] = $v;<br />    $t = http_build_query($param);<br />    echo "<a href='/search.php?$t'>$v</a> ";<br />  }<br />  echo '<br>';<br />}<br />

<?php<br />session_start();<br />if(! isset($_SESSION['search']))<br />   $_SESSION['search'] = array();<br />$_SESSION['search'] = array_merge($_SESSION['search'], $_GET);<br />echo join(' - ', $_SESSION['search']), '<br>';<br />?><br /><a href="/search1.php?area=内地">内地</a><br /><a href="/search1.php?type=动作">动作</a><br /><a href="/search1.php?year=2011">2011</a><br />

session_start();<br>if(! isset($_SESSION['search']) <br><font color="#FF8000">------解决方案--------------------</font><br> ! $_GET)<br>   $_SESSION['search'] = array();<br>$_SESSION['search'] = array_merge($_SESSION['search'], $_GET);<div class="clear"></div>