php -- 表单多选

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----- 011-form.html -----

 <!DOCTYPE html>
 <html>
 <head>
     <meta http-equiv="content-type" content="text/html; charset=utf-8">
     <title>一个PHP网页</title>
 </head>
 <body>
 <center>
     <form action="011-post.php">
         随便选择几句：<br/>
         <select multiple="multiple" name="tower[]">
             <option>白日依山尽</option>
             <option>黄河入海流</option>
             <option>欲穷千里目</option>
             <option>更上一层楼</option>
         </select><br/>
         <input type="submit" value="提交">
     </form>
 </center>
 </body>
 </html>

----- 011-post.php -----

 <!DOCTYPE html>
 <html>
 <head>
     <meta http-equiv="content-type" content="text/html; charset=utf-8">
     <title>一个PHP网页</title>
 </head>
 <body>
 <?php
     if(isset($_GET['tower']))
         foreach ($_GET['tower'] as $value) {
             echo $value, "<br/>";
         }
     else
         echo "一个没选";
 ?>
 </body>
 </html>