Question

我正在尝试制作一个简单的代码，该代码将根据用户电子邮件从数据库中获取特定数据。

例如，用户将在文本字段中输入他的电子邮件，然后按提取按钮以获取自己的信息。

我制作了这段代码，但它不起作用：

enter your email: <input type = "text"  name = "email" size="30"/>   
<input type = "submit"  name = "fetch" size="30" value="fetch" />  
<?php  
mysql_connect("localhost","name","pass");
mysql_select_db("table_Name");
if(isset($_POST['fetch']))
{
$email = $_POST['email']; 
$query = "SELECT * FROM table_Name WHERE user_email = '$email'"; 
$run = mysql_query($query );

if (mysql_num_rows($run) > 0)
{
$_SESSION['email']= $email;   

echo 'your information'.$email;   
}
else 
{
echo "<script>alert('wrong email!')</script>";     
}
}

?>

Answer 1

您需要在文件中添加表单。像这样：

<form method="post" action="#">
<input type = "text"  name = "email" size="30"/>   
<input type = "submit"  name = "fetch" size="30" value="fetch" />
</form>

我建议至少添加此内容以验证电子邮件输入：

$email = $_POST["email"];
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {die()};

从mysql获取特定数据

1 个答案: