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return [ // Êý¾Ý¿âÀàÐÍ 'type' => 'mysql', // ЧÀÍÆ÷µØµã 'hostname' => '127.0.0.1', // Êý¾Ý¿âÃû 'database' => 'database_name', // Óû§Ãû 'username' => 'root', // ÃÜÂë 'password' => 'password', // ¶Ë¿Ú 'hostport' => '', // Êý¾Ý¿âÅþÁ¬²ÎÊý 'params' => [], // Êý¾Ý¿â±àÂëĬÈϽÓÄÉutf8 'charset' => 'utf8', // Êý¾Ý¿â±íǰ׺ 'prefix' => '', // ÊÇ·ñÐèÒª¾ÙÐÐSQLÐÔÄÜÆÊÎö 'sql_explain' => false, // ÊÇ·ñÐèÒª¾ÙÐÐÊý¾Ý±¸·Ý 'backup' => true, // Êý¾Ý±¸·ÝĿ¼ 'backup_path' => '/backup/', // Êý¾Ý±¸·ÝÎļþµÄ×î´ó¾í¾Þϸ(×Ö½Ú) 'backup_max_size' => 100 * 1024 * 1024, // Êý¾Ý¿â±¸·ÝÎļþÃüÃûÃûÌà 'backup_name' => '', ];
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use thinkDb; use thinkacadeConfig; use thinkacadeCache; class Backup { protected $options = [ 'path' => '', 'part' => '', 'compress' => 0, 'level' => 9, 'lock' => true, ]; protected $config; public function __construct() { // »ñÈ¡Êý¾Ý¿âÉèÖà $this->config = Config::get('database'); } // ±¸·ÝÊý¾Ý¿â public function backup() { $database = $this->config['database']; $path = $this->config['backup_path']; $part = isset($this->config['backup_part_size']) ? $this->config['backup_part_size'] : $this->options['part']; $compress = isset($this->config['backup_compress']) ? $this->config['backup_compress'] : $this->options['compress']; $level = isset($this->config['backup_compress_level']) ? $this->config['backup_compress_level'] : $this->options['level']; // ¼ì²é±¸·ÝĿ¼ÊÇ·ñ±£´æ if (!is_dir($path)) { mkdir($path, 0755, true); } // ³õʼ»¯ $file = [ 'name' => $database . '_' . date('YmdHis'), 'part' => 1, ]; // »ñÈ¡±í½á¹¹ $sql = "SHOW TABLES"; $result = Db::query($sql, true); // ±éÀúËùÓÐ±í±¸·ÝÊý¾Ý foreach ($result as $val) { $sql = "SHOW CREATE TABLE `" . $val['Tables_in_' . $database] . "`"; $res = Db::query($sql, true); $sql = "-- "; foreach ($res as $row) { $sql .= $row['Create Table'] . "; "; } $start = 0; $size = 1000; $table = $val['Tables_in_' . $database]; // ±¸·ÝÊý¾Ý while (true) { $sqls = "SELECT * FROM `" . $table . "` LIMIT {$start}, {$size}"; $result = Db::query($sqls, true); $numRows = count($result); if ($numRows < 1) { break; } $sql .= "-- "; $sql .= "-- dump data for {$table} "; $sql .= "-- "; foreach ($result as $row) { $row = array_map('addslashes', $row); $sql .= "INSERT INTO `{$table}` VALUES ('" . implode("','", $row) . "'); "; } $start += $numRows; } // дÈëSQLÓï¾ä $this->write($sql, $file); } // ¿¢Ê±¸·ÝÁ÷³Ì $this->config = []; return true; } // дÈëSQLÓï¾ä protected function write($sql, &$file) { $size = strlen($sql); if ($size + $file['part'] <= $this->config['backup_max_size']) { $file['sql'] .= $sql; } else { $this->save($file); $file['sql'] = $sql; $file['part']++; } } // ÉúÑı¸·ÝÎļþ protected function save(&$file) { $name = $file['name'] . "_" . $file['part'] . ".sql"; $path = $this->config['backup_path'] . $name; $sql = $file['sql']; if ($file['compress'] && function_exists('gzcompress')) { $sql = gzcompress($sql, $file['level']); } if ($this->config['backup_lock']) { $lock = "{$this->config['backup_path']}backup.lock"; file_put_contents($lock, time()); } file_put_contents($path, $sql); } }
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