基于日期和无计划计算出的数据存储在用PHP代码创建的表中以显示,可以通过以下步骤实现:
<?php
// 连接到数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);
// 检查连接是否成功
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
// 创建表
$sql = "CREATE TABLE IF NOT EXISTS data (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
date DATE,
value INT(6)
)";
if ($conn->query($sql) === TRUE) {
echo "表创建成功";
} else {
echo "创建表时出错: " . $conn->error;
}
$conn->close();
?>
<?php
// 连接到数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);
// 检查连接是否成功
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
// 计算数据并插入表中
$date = date("Y-m-d"); // 当前日期
$value = 10; // 假设计算得到的值为10
$sql = "INSERT INTO data (date, value) VALUES ('$date', '$value')";
if ($conn->query($sql) === TRUE) {
echo "数据插入成功";
} else {
echo "插入数据时出错: " . $conn->error;
}
$conn->close();
?>
<?php
// 连接到数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";
$conn = new mysqli($servername, $username, $password, $dbname);
// 检查连接是否成功
if ($conn->connect_error) {
die("连接失败: " . $conn->connect_error);
}
// 从表中检索数据
$sql = "SELECT * FROM data";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// 输出数据
while($row = $result->fetch_assoc()) {
echo "日期: " . $row["date"]. " - 值: " . $row["value"]. "<br>";
}
} else {
echo "没有数据";
}
$conn->close();
?>
通过以上步骤,你可以将基于日期和无计划计算出的数据存储在用PHP代码创建的表中,并以所需的方式进行显示。请注意,以上示例代码仅供参考,实际应用中可能需要根据具体需求进行修改和优化。
领取专属 10元无门槛券
手把手带您无忧上云