php多条件搜索代码

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database_name";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

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

// 获取用户输入的搜索条件
$searchTerm1 = $_GET['term1'] ?? '';
$searchTerm2 = $_GET['term2'] ?? '';

// 构建SQL查询
$sql = "SELECT * FROM table_name WHERE 1=1";
$params = [];

if (!empty($searchTerm1)) {
    $sql .= " AND column1 LIKE ?";
    $params[] = "%$searchTerm1%";
}

if (!empty($searchTerm2)) {
    $sql .= " AND column2 LIKE ?";
    $params[] = "%$searchTerm2%";
}

// 执行查询
$stmt = $conn->prepare($sql);
$stmt->bind_param(str_repeat("s", count($params)), ...$params);
$stmt->execute();
$result = $stmt->get_result();

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

// 关闭连接
$stmt->close();
$conn->close();
?>