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main頁面(主頁面)

<table width="100%" border="1" cellpadding="0" cellspacing="0">
<tr>
<td>代號</td>
<td>姓名</td>
<td>性別</td>
<td>民族</td>
<td>生日</td>
<td>操作</td>
</tr>

<?php
$db = new MySQLi("localhost","root","","mydb");
if(mysqli_connect_error()){

　　die("連接失敗");

} 
$sql = "select * from Info";
$result = $db->query($sql);
$attr = $result->fetch_all();
foreach($attr as $v)
{
 $sex = $v[2]? '男':'女';　　//三元運算符判斷性別
 $sql = "select Name from Nation where Code ='$v[3]'";
 $result = $db ->query($sql);
 $attr = $result->fetch_assoc();
 echo "<tr>
 <td>{$v[0]}</td>
 <td>{$v[1]}</td>
 <td>{$sex}</td>
 <td>{$attr['Name']}</td>
 <td>{$v[4]}</td>
 <td>
  <a >刪除</a>
  <a >修改</a>
 </td>
 </tr>";
}
?>

</table>
<div>

<a  rel="external nofollow" >添加數據</a>

</div>

Add(添加數據頁面)

<h1>添加數據</h1>
<form action="AddChuLi.php" method="post">
 <div>代號：<input type="text" name="code" /></div>
 <div>姓名：<input type="text" name="name" /></div>
 <div>性別：
   <input type="radio" value="男" name="sex" />男
   <input type="radio" value="女" name="sex" />女
 </div>
 <div>民族:
   <select name="nation">
   <?php
   $db = new MySQLi("localhost","root","","mydb");
  if(mysqli_connect_error()){

　　die("連接失敗");

　　}
   $sql = "select * from Nation";
   $r = $db->query($sql);
   $att = $r->fetch_all();
   foreach($att as $v)
   {
    echo "<option value='{$v[0]}'>{$v[1]}</option>";
   }
   ?>
   </select>
 </div>
 <div>生日：<input type="text" name="birthday" /></div>
 <div><input type="submit" value="添加數據" /></div>
</form>

AddChuLi頁面（添加數據處理頁面）

<?php
$code = $_POST["code"];
$name = $_POST["name"];
$sex = $_POST["sex"];
$s = 1;
if($sex =="女")
{
 $s=0;
}
$nation = $_POST["nation"];
$birthday = $_POST["birthday"];
$db = new MySQLi("localhost","root","","mydb");
if(mysqli_connect_error()){

　　die("連接失敗");

} 

$sql = "insert into Info values('{$code}','{$name}','{$s}','{$nation}','{$birthday}')";　　//添加數據語句
$result = $db->query($sql);
if($result)
{
 header("location:main.php");　　//php跳轉頁面方式
}
else
{
 echo "添加失敗！";
}

DeleteChuLi頁面（刪除數據處理頁面）

<?php
$code = $_GET["code"];
$db = new MySQLi("localhost","root","","mydb");
if(mysqli_connect_error()){

　　die("連接失敗");

} 

$sql = "delete from Info where Code ='{$code}'";　　//刪除語句
$r = $db->query($sql);
if($r)
{
 header("location:main.php");
}
else
{
 echo "刪除失敗！";
}

Update頁面（修改數據頁面）

<h1>修改數據</h1>
<?php
$code = $_GET["code"];
$db = new MySQLi("localhost","root","","mydb");
if(mysqli_connect_error()){

　　die("連接失敗");

} 

$sql1 = "select * from Info where Code='{$code}'";
$r1 = $db->query($sql1);
$att1 = $r1->fetch_row();
?>


<form action="UpdateChuLi.php" method="post">
 <div>代號：<input type="hidden" name="code" value="<?php echo $att1[0] ?>" /></div>
 <div>姓名：<input type="text" name="name" value="<?php echo $att1[1] ?>" /></div>
 <div>性別：
   <input type="radio" value="男" name="sex" <?php echo $att1[2] ? "checked='checked'" : ""; ?> />男
   <input type="radio" value="女" name="sex" <?php echo $att1[2] ? "" : "checked='checked'"; ?> />女
 </div>
 <div>民族:
   <select name="nation">
   <?php
   $db = new MySQLi("localhost","root","","mydb");
   if(mysqli_connect_error()){

　　die("連接失敗");

　　}
   $sql = "select * from Nation";　　//查詢nation一組數據
   $r = $db->query($sql);
   $att = $r->fetch_all();
   foreach($att as $v)
   {
    if($att1[3]==$v[0])
    {
     echo "<option value='{$v[0]}' selected='selectec' >{$v[1]}</option>";　　
    }
    else
    {
     echo "<option value='{$v[0]}'>{$v[1]}</option>";
    }
    
   }
   ?>
   </select>
 </div>
 <div>生日：<input type="text" name="birthday" value="<?php echo $att1[4] ?>"/></div>
 <div><input type="submit" value="修改數據" /></div>
</form>

ateChuLi頁面（修改數據處理頁面）

<?php
$code = $_POST["code"];
$name = $_POST["name"];
$sex = $_POST["sex"];
$s=1;
if($sex=="女")
{
 $s=0;
}
$nation = $_POST["nation"];
$birthday = $_POST["birthday"];
$db = new MySQLi("localhost","root","","mydb");
if(mysqli_connect_error()){

　　die("連接失敗");

} 

$sql = "update Info set Name='{$name}',Sex={$s},Nation='{$nation}',Birthday='{$birthday}' where Code='{$code}'";　　//修改數據語句
$r = $db->query($sql);
if($r)
{
 header("location:main.php");
}
else
{
 echo "修改失敗！";
}

以上這篇使用PHP連接數據庫_實現用戶數據的增刪改查的整體操作示例就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持綠夏網。