php 简单的搜索加分页

<?php
// 数据库连接
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 每页显示的记录数
$limit = 10;

// 获取当前页码，默认为第一页
$page = isset($_GET['page']) ? intval($_GET['page']) : 1;

// 计算偏移量
$offset = ($page - 1) * $limit;

// 搜索关键词
$search = isset($_GET['search']) ? $_GET['search'] : '';

// 构建查询语句
$sql = "SELECT * FROM table_name WHERE column_name LIKE '%$search%' LIMIT $offset, $limit";
$result = $conn->query($sql);

// 获取总记录数
$total_sql = "SELECT COUNT(*) as total FROM table_name WHERE column_name LIKE '%$search%'";
$total_result = $conn->query($total_sql);
$total_row = $total_result->fetch_assoc();
$total = $total_row['total'];

// 计算总页数
$total_pages = ceil($total / $limit);

// 显示数据
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
    }
} else {
    echo "0 结果";
}

// 显示分页链接
for ($i = 1; $i <= $total_pages; $i++) {
    echo "<a href='?page=$i&search=$search'>$i</a> ";
}

$conn->close();
?>

$stmt = $conn->prepare("SELECT * FROM table_name WHERE column_name LIKE ? LIMIT ?, ?");
$search = "%$search%";
$stmt->bind_param("sii", $search, $offset, $limit);
$stmt->execute();
$result = $stmt->get_result();