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php分页代码实现

2026-01-29 02:10:32PHP

PHP分页代码实现

分页功能是Web开发中常见的需求，以下是一个基本的PHP分页实现方法，适用于MySQL数据库。

数据库连接与查询

建立数据库连接并获取总记录数：

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

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

$sql = "SELECT COUNT(*) as total FROM your_table";
$result = $conn->query($sql);
$row = $result->fetch_assoc();
$total_records = $row['total'];

分页参数设置

计算分页所需参数：

$records_per_page = 10;
$total_pages = ceil($total_records / $records_per_page);

$current_page = isset($_GET['page']) ? $_GET['page'] : 1;
$offset = ($current_page - 1) * $records_per_page;

数据查询

获取当前页数据：

$sql = "SELECT * FROM your_table LIMIT $offset, $records_per_page";
$result = $conn->query($sql);

显示分页导航

生成分页链接：

echo "<div class='pagination'>";
for ($i = 1; $i <= $total_pages; $i++) {
    $active = ($i == $current_page) ? "active" : "";
    echo "<a href='?page=$i' class='$active'>$i</a> ";
}
echo "</div>";

完整示例

将以上代码整合：

// 数据库连接
$conn = new mysqli("localhost", "username", "password", "database");

// 获取总记录数
$count_result = $conn->query("SELECT COUNT(*) as total FROM your_table");
$total_records = $count_result->fetch_assoc()['total'];

// 分页设置
$per_page = 10;
$total_pages = ceil($total_records / $per_page);
$page = isset($_GET['page']) ? $_GET['page'] : 1;
$offset = ($page - 1) * $per_page;

// 获取数据
$result = $conn->query("SELECT * FROM your_table LIMIT $offset, $per_page");

// 显示数据
while ($row = $result->fetch_assoc()) {
    echo $row['column_name']."<br>";
}

// 分页导航
echo "<div class='pagination'>";
for ($i = 1; $i <= $total_pages; $i++) {
    $active = ($i == $page) ? "active" : "";
    echo "<a href='?page=$i' class='$active'>$i</a> ";
}
echo "</div>";

样式建议

添加基本CSS样式：

.pagination a {
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid #ddd;
    margin: 0 4px;
}
.pagination a.active {
    background-color: #4CAF50;
    color: white;
    border: 1px solid #4CAF50;
}
.pagination a:hover:not(.active) {
    background-color: #ddd;
}

安全注意事项

防止SQL注入：

$page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
if ($page < 1) $page = 1;
if ($page > $total_pages) $page = $total_pages;

高级分页功能

php分页代码实现

if ($page > 1) {
    echo "<a href='?page=".($page - 1)."'>Previous</a> ";
}
if ($page < $total_pages) {
    echo "<a href='?page=".($page + 1)."'>Next</a> ";
}

此实现提供了基本的分页功能，可根据实际需求进行调整和扩展。