统计MySQL表的行数(PHP)

<?php
// 连接数据库
$servername = "数据库服务器地址";
$username = "数据库用户名";
$password = "数据库密码";
$dbname = "数据库名";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 执行查询
$sql = "SELECT COUNT(*) as count FROM 表名";
$result = $conn->query($sql);

// 处理结果
if ($result->num_rows > 0) {
    $row = $result->fetch_assoc();
    $count = $row["count"];
    echo "表的行数为: " . $count;
} else {
    echo "表中没有数据";
}

// 关闭连接
$conn->close();
?>