PHP表单GET

    <?php      error_reporting(E_ALL);//打印页面所有错误          print_r($_GET);//打印客户端传送的GET数据      if(is_array($_GET)&&count($_GET)>0)//判断是否有传送数据，如果有就执行      {          $num = $_GET["stu_num"];          $name = $_GET["stu_name"];          $sex = $_GET["stu_sex"];          $con = mysql_connect("localhost","root","");          echo mysql_select_db("chunweitest");          $sql = "insert into student (stu_name,stu_sex,stu_num) values (\"$name\",$sex,$num)";          $result = mysql_query($sql);          echo "[$result]";          print_r($result);          echo $sql;      }      ?>      <!-- 表单 使用GET方法传送数据 -->      <form method="get">          学号:<input type="text" name="stu_num" /><br/>          姓名:<input type="text" name="stu_name" /><br/>          性别:<input type="text" name="stu_sex" /><br/>          <input type="submit" value="get this student"/>      </form>