dedecms 数据字典

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_dbname";

// 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);
}

// 查询数据字典
$sql = "SHOW TABLES";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "表名: " . $row["Tables_in_$dbname"] . "<br>";
        $table_name = $row["Tables_in_$dbname"];
        $sql_fields = "DESCRIBE `$table_name`";
        $result_fields = $conn->query($sql_fields);
        if ($result_fields->num_rows > 0) {
            echo "<table><tr><th>字段名</th><th>类型</th><th>是否主键</th><th>是否允许为空</th></tr>";
            while($row_fields = $result_fields->fetch_assoc()) {
                echo "<tr>";
                echo "<td>" . $row_fields["Field"] . "</td>";
                echo "<td>" . $row_fields["Type"] . "</td>";
                echo "<td>" . ($row_fields["Key"] == "PRI" ? "是" : "否") . "</td>";
                echo "<td>" . ($row_fields["Null"] == "YES" ? "是" : "否") . "</td>";
                echo "</tr>";
            }
            echo "</table>";
        }
        echo "<br>";
    }
} else {
    echo "0 结果";
}

$conn->close();
?>