使用php在mysql中搜索整个数据库

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_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);
}

// 搜索整个数据库
$searchTerm = "your_search_term";
$sql = "SELECT * FROM your_table WHERE column_name LIKE '%$searchTerm%'";

$result = $conn->query($sql);

// 处理查询结果
if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        // 处理每一行的数据
        echo "ID: " . $row["id"] . " - Name: " . $row["name"] . "<br>";
    }
} else {
    echo "没有找到匹配的结果";
}

// 关闭数据库连接
$conn->close();
?>