search.php

php开发实例完全剖析

<?php
//初始化session
session_start();
// 包含数据库连接文件和头文件
require ('dbconnect.php');
include('head.php');
?>
<?
if(!isset($_SESSION['Adm'])) {
   echo "<p align=center>";
   echo "<font color=#FF0000 size=5><strong><big>";
   echo "管理员还没有登录,请<a href='login.php'>登录</a>!";
   echo "</big></strong></font></p>";
   exit();
}
?>
<script language="javascript"> 
    function check()
    { 
      if ((form1.field1.value=="") && (form1.field2.value=="")){
        // 如果查询条件为空,踢出警告
         alert("查询条件不能为空!")
         return false
	  }
      else {        
		 // 至少有一个查询条件
         return true
      } 	
    } 
</script>

<h1></h1>
<form name="form1" method="post" action="search_result.php" onsubmit="return check()">
  <table width="49%" border="0" cellspacing="1" cellpadding="3" align="center">
    <tr> 
      <th colspan="2">会员信息查询</th>
    </tr>
    <tr> 
      <td align="right"> 
        <select name="select1" size="1">
		  <option>所有条件</option>
          <option>用户名</option>
          <option>真实姓名</option>
          <option>Email</option>
          <option>Oicq</option>
          <option>主页</option>
          <option>城市</option>
          <option>地址</option>
          <option>邮编</option>
          <option>电话</option>
          <option>教育程度</option>
          <option>自我介绍</option>
          <option>兴趣爱好</option>
        </select>
      </td>
      <td> 
        <input type="text" name="field1">
        <select name="select3">
          <option>和</option>
          <option>或</option>
          <option>否</option>
        </select>
      </td>
    </tr>
    <tr> 
      <td align="right"> 
        <select name="select2" size="1">          
		  <option>所有条件</option>
		  <option selected>用户名</option>
          <option>真实姓名</option>
          <option>Email</option>
          <option>Oicq</option>
          <option>主页</option>
          <option>城市</option>
          <option>地址</option>
          <option>邮编</option>
          <option>电话</option>
          <option>教育程度</option>
          <option>自我介绍</option>
          <option>兴趣爱好</option>
        </select>
      </td>
      <td> 
        <input type="text" name="field2">
      </td>
    </tr>
    <tr> 
      <td>&nbsp;</td>
      <td>&nbsp;</td>
    </tr>
    <tr> 
      <td align="right"> 
        <input type="submit" name="Submit" value="查 询">
      </td>
      <td align="center"> 
        <input type="reset" name="Submit2" value="重 置">
      </td>
    </tr>
  </table>
</form>