Php：选择mysql表元素时自动完成输入 [英] Php: autocomplete inputs when mysql table element selected
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问题描述
我正在构建一个简单的应用程序来发送确认电子邮件。我有一个包含4列的MySQL表：id，user_email，user_name和user_track。该表单包含一个选择框，显示存储的所有user_email和两个文本输入，当选择电子邮件时应该自动完成。
我尝试过：
我尝试了以下内容，但它只是回显了user_track和user_name的所有条目。
I'm building a simple app to send confirmation emails. I have a MySQL table with 4 columns: id, user_email, user_name and user_track. The form consists of a selectbox that shows all the user_email stored and two text inputs that should be autocompleted when an email is selected.
What I have tried:
I have tried the following, but it just echo's all the entries for user_track and user_name.
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "my_db";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT id, user_email, user_name, user_track FROM demo_data ORDER BY id DESC";
$option = '';
$artist = '';
$track = '';
$result = $conn->query($sql);
while($row = $result->fetch_assoc()){
$option .= '<option value = "'.$row['user_email'].'">'.$row['user_email'].'</option>';
$track .= '<input type="text" name="track" required value = "'.$row['user_track'].'">';
$artist .= '<input type="text" name="artist" required value = "'.$row['user_name'].'">';
}
?>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Admin</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="main">
<h1>Accepted demo</h1>
<form action="demo.php" method="post">
<select name="select">
<?php echo $option; ?>
</select><br><br>
<?php echo $track; ?><br><br>
<?php echo $artist; ?><br><br>
<input type="date" name="date" placeholder="Release Date" required>
<br><br>
<input style="margin-top:10px;" class="btn" type="submit" value="Send email">
</form>
</body>
</html>
<?php
$conn->close();
?>
推荐答案
servername =localhost;
servername = "localhost";
username = root;
username = "root";
password =;
password = "";
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