???? ???? ???? ???? ??????? ?? ??? ?????. ??? ??????? ???? ???? ?? ?? ??? ?????. ? ????? ThinkPHP6 ?????? ?? ???? ThinkPHP6? ???? ?????? ?? ? ??? ???? ??? ?????.

1. ?????? ??

1.1 ?? ??

?????? ??? ???? ?? ?? ??? ???? ???.

1 mysql ??????? bin ???? ??? ???? ?? ??? ??? ??? ???? ???.

2. mysqldump ??? ??? ???? ???.

3. ??????? ?? ???? ??? ???? ????? ??????? ?? mysqldump ??? ??? ? ?? ??? ??? ?????.

1.2 ?????? ?? ??

1.2.1 ?? ???? ??

config ??? Database.php ??? ????, ??? ??? ?????? ?? ??? ????? ?????.

<?php
return [
    // 數據庫類型
    'type'        => 'mysql',
    // 數據庫連接DSN配置
    'dsn'         => '',
    // 服務器地址
    'hostname'    => 'localhost',
    // 數據庫名
    'database'    => 'test',
    // 數據庫用戶名
    'username'    => 'root',
    // 數據庫密碼
    'password'    => 'root',
    // 數據庫連接端口
    'hostport'    => '3306',
    // 數據庫連接參數
    'params'      => [],
    // 數據庫編碼默認采用utf8
    'charset'     => 'utf8',
    // 數據庫表前綴
    'prefix'      => 'think_',
    // 數據庫調試模式
    'debug'       => false,
    // 數據庫備份路徑，沒有則自動創(chuàng)建
    'path'        => '',
    // 數據庫備份卷大小，單位為字節(jié)，設為0表示不限制備份大小
    'part'        => 20971520,
    // 數據庫備份文件壓縮格式，這里是gzip
    'compress'    => 'gzip',
    // 數據庫備份文件名
    'filename'    => '',
    // 數據庫備份文件是否需要壓縮
    'zip'         => true,
    // 數據庫備份文件是否需要分卷備份
    'split'       => true,
    // 數據庫備份時是否將存儲過程和觸發(fā)器一起備份
    'level'       => 9,
    // 數據庫備份文件的存儲路徑，最好為絕對路徑，這也是最關鍵的路徑
    'path'        => '/data/mysql/',
];

1.2.2 ?? ?? ??

app/controller ??? BackupController.php ??? ???? ?? ??? ?????.

<?php
declare(strict_types=1);

namespace appcontroller;

use thinkacadeDb;

class BackupController
{
    protected $backupConfig;

    public function __construct()
    {
        $this->backupConfig = config('database');
    }

    public function backup()
    {
        // 防止備份數據過程超時
        set_time_limit(0);

        $database = $this->backupConfig['database'];
        $filename = date('Ymd-His', time()) . ".sql";
        $path = $this->backupConfig['path'].$filename;

        // 檢查目錄是否存在或者是否有權限寫入
        if(!is_dir($this->backupConfig['path'])){
            mkdir($this->backupConfig['path'], 0755, true);
        }else{
            if(!is_writeable($this->backupConfig['path'])){
                chmod($this->backupConfig['path'], 0755);
            }
        }

        // 備份所有數據表
        $result = Db::query("SHOW TABLES");

        $tables = array();
        foreach($result as $index => $row){
            $tables[] = $row['Tables_in_'.$database];
        }

        // 備份所有表結構和表數據
        $content = '';
        foreach($tables as $table){
            $content = $content . "/*" . PHP_EOL;
            $content = $content . "表名：" . $table . PHP_EOL;
            $content = $content . "表結構：" . PHP_EOL;
            $content = $content . "*/" . PHP_EOL;
            $content = $content . $this->backupTableSchema($table);
            $content = $content . "/*" . PHP_EOL;
            $content = $content . "表數據：" . PHP_EOL;
            $content = $content . "*/" . PHP_EOL;
            $content = $content . $this->buildInsertSql($table);
        }

        // 是否需要壓縮
        if ($this->backupConfig['zip']) {
            $zip = new ZipArchive();
            $zipfilename = $this->backupConfig['path'] . date('Ymd-His', time()) . ".zip";
            if ($zip->open($zipfilename, ZipArchive::OVERWRITE) === TRUE) {
                $zip->addFile($path,$filename);
                $zip->close();
                // 刪除非壓縮的文件
                unlink($path);
            } else {
                // 備份失敗
            }
        }
    }

    // 備份表結構
    protected function backupTableSchema($table)
    {
        $database = $this->backupConfig['database'];
        $result = Db::query("SHOW CREATE TABLE `" . $table . "`");
        $create = $result[0]['Create Table'] . ";" . PHP_EOL.PHP_EOL;
        return $create;
    }

    // 備份表數據
    protected function buildInsertSql($table)
    {
        $database = $this->backupConfig['database'];
        $result = Db::query("SELECT * FROM `" . $table . "`");
        $insert = '';
        foreach ($result as $key => $value) {
            $keys = array_keys($value);
            $values = array_map(array(Db::class, 'quote'), array_values($value));
            $values = join(",", $values);
            $insert .= "INSERT INTO `" . $table . "` (`" . join("`,`", $keys) . "`) VALUES (" . $values . ");" . PHP_EOL;
        }
        $insert .= PHP_EOL;
        return $insert;
    }
}

1.2.3 ?? ??

??? ????? ????? ?? URL ??? ?????.

http://localhost/backup/backup

1.3 ?????? ??

1.3.1 ?? ?? ??

?/???? ??? RecoveryController.php ??? ???? ?? ??? ?????.

<?php
declare(strict_types=1);

namespace appcontroller;

use thinkacadeDb;

class RecoveryController
{
    protected $backupConfig;

    public function __construct()
    {
        $this->backupConfig = config('database');
    }

    public function recovery()
    {
        // 防止還原數據過程超時
        set_time_limit(0);
        ini_set('memory_limit', '1024M');

        $filename = input('get.filename');

        // 讀取備份文件
        if ($this->backupConfig['zip']) {
            $zip = new ZipArchive();
            if ($zip->open($this->backupConfig['path'].$filename) === true) {
                $filename = $zip->getNameIndex(0);
                $zip->extractTo($this->backupConfig['path']);
                $zip->close();
            }
        }

        $content = file_get_contents($this->backupConfig['path'] . $filename);

        // 使用";"分割內容
        $statements = explode(";", $content);

        // 開始事務
        Db::startTrans();

        foreach ($statements as $index => $stmt) {
            if (trim($stmt) === '') {
                continue;
            }
            $results = Db::query($stmt);
            if ($results === false) {
                Db::rollback();
                return false;
            }
        }

        // 提交事務
        Db::commit();

        // 刪除非壓縮的文件
        unlink($this->backupConfig['path'] . $filename);

        return true;
    }
}

1.3.2 ?? ??

??? ????? ????? ?? URL ??? ?????.

http://localhost/recovery/recovery?filename=20200101-121212.sql.zip

?? ThinkPHP6?? ?????? ?? ? ??? ???? ?????. ??? ?? ??? ??? ????? ??? ? ????. ??? ??? ????? ?? ???? ????? ???? ?? ?? ??????.

? ??? ThinkPHP6? ???? ?????? ?? ? ??? ???? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!