PHP pdo 链接access数据库并读取写入数据实例

1.php pdo 链接access数据库：

<?php

try {

$conn = new PDO("odbc:driver={microsoft access driver (*.mdb)};

              dbq=".realpath("MyDatabase.mdb")) 

              or die("链接错误！");

}

catch(PDOException $e){

    echo $e->getMessage();

}

?>

2.读取access数据库mydatabase.mdb中users表中的所以数据

<?php

try {

$conn = new PDO("odbc:driver={microsoft access driver (*.mdb)};

              dbq=".realpath("MyDatabase.mdb")) 

              or die("链接错误！");
//echo "链接成功！"; 

}

catch(PDOException $e){

    echo $e->getMessage();

}

$sql = "select * from users";

$rs = $conn->query($sql);

?>

<table width="50%" cellpadding="0" cellspacing="0" border="1">
<tr>

    <td>编号</td>

        <td>用户名</td>

        <td>密码</td>

    </tr>

    

<?php

foreach ($conn->query($sql) as $row) {
//print_r($row); //你可以用 echo($GLOBAL); 来看到这些值
//echo "编号：".$row[0]."--用户名：".$row[1]."--密码：".$row[2]."<br>";

?>

    <tr>

    <td><?php echo $row["UserID"] ?></td>

        <td><?php echo $row["UserName"] ?></td>

        <td><?php echo $row["UserPassword"] ?></td>

    </tr>

<?php

}

?>

</table>

3.通过表单想users表中添加数据

<br><br>

<form name="userform" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post">

<p>用户名：<input type="text" name="username">  <?php echo $nameErr;?> </p>

<p>密 码：<input type="password" name="password">  <?php echo $nameErr;?></p>

<p><input type="submit" name="sub" value="提交"></p>

</form>

<?php

$username="";

$password="";

$usernameErr="";

$passwordErr="";

if ($_SERVER["REQUEST_METHOD"] == "POST"){
if (empty($_POST["username"]))
{$usernameErr = "用户名不能为空！";}
else
{$username = test_input($_POST["username"]);}

if (empty($_POST["password"]))
{$passwordErr = "用户名不能为空！";}
else
{$password = test_input($_POST["password"]);}

$sql="insert into Users(UserName,UserPassword) values('".$username."','".$password."')";
$conn->exec($sql);

    echo "<script>alert('添加成功！');window.location.href='index.php';</script>";

}

?>