PHP 데이터베이스 연결 자동화: 스크립트 및 도구를 사용하여 관리 단순화

$dsn = 'mysql:host=localhost;dbname=my_database';
$user = 'root';
$password = 'secret';
$pdo = new PDO($dsn, $user, $password);

$sql = "SELECT * FROM users WHERE name = ?";
$stmt = $pdo->prepare($sql);
$stmt->execute([$name]);
$users = $stmt->fetchAll();

<?php

// 连接到数据库
$dsn = 'mysql:host=localhost;dbname=my_database';
$user = 'root';
$password = 'secret';
$pdo = new PDO($dsn, $user, $password);

// 执行维护任务
$pdo->exec('VACUUM ANALYZE');
$pdo->exec('OPTIMIZE TABLE users');

// 关闭连接
$pdo = null;

?>

<?php

// 设置备份文件路径
$backup_file = 'backup.sql';

// 连接到数据库
$dsn = 'mysql:host=localhost;dbname=my_database';
$user = 'root';
$password = 'secret';
$pdo = new PDO($dsn, $user, password);

// 提取数据库结构和数据
$sql = "SHOW TABLES";
$stmt = $pdo->query($sql);
$tables = $stmt->fetchAll(PDO::FETCH_COLUMN);

foreach ($tables as $table) {
    $stmt = $pdo->query("DESCRIBE $table");
    $fields = $stmt->fetchAll(PDO::FETCH_COLUMN);

    $fp = fopen($backup_file, 'a+');
    fwrite($fp, "CREATE TABLE $table (\n");
    foreach ($fields as $field) {
        fwrite($fp, "    $field\n");
    }
    fwrite($fp, ");\n");

    $stmt = $pdo->qurey("SELECT * FROM $table");
    $data = $stmt->fetchAll(PDO::FETCH_ASSOC);

    foreach ($data as $row) {
        $values = implode(',', array_map(function ($value) {
            return "'$value'";
        }, $row));
        fwrite($fp, "INSERT INTO $table VALUES ($values);\n");
    }

    fclose($fp);
}

// 关闭连接
$pdo = null;

?>