first commit

libraries/MySQLDump.php

@@ -0,0 +1,209 @@
+<?php
+
+
+
+/**
+
+ * MySQL database dump.
+
+ *
+
+ * @author     David Grudl (http://davidgrudl.com)
+
+ * @copyright  Copyright (c) 2008 David Grudl
+
+ * @license    New BSD License
+
+ * @version    1.0
+
+ */
+
+class MySQLDump
+
+{
+
+	const MAX_SQL_SIZE = 1e6;
+
+
+
+	const NONE = 0;
+
+	const DROP = 1;
+
+	const CREATE = 2;
+
+	const DATA = 4;
+
+	const TRIGGERS = 8;
+
+	const ALL = 15; // DROP | CREATE | DATA | TRIGGERS
+
+
+
+	/** @var array */
+
+	public $tables = array(
+
+		'*' => self::ALL,
+
+	);
+
+
+
+	/** @var mysqli */
+
+	private $connection;
+
+
+
+
+
+	/**
+
+	 * Connects to database.
+
+	 * @param  mysqli connection
+
+	 */
+
+	public function __construct(mysqli $connection, $charset = 'utf8')
+
+	{
+
+		$this->connection = $connection;
+
+
+
+		if ($connection->connect_errno) {
+
+			throw new Exception($connection->connect_error);
+
+
+
+		} elseif (!$connection->set_charset($charset)) { // was added in MySQL 5.0.7 and PHP 5.0.5, fixed in PHP 5.1.5)
+
+			throw new Exception($connection->error);
+
+		}
+
+	}
+
+
+
+
+
+	/**
+
+	 * Saves dump to the file.
+
+	 * @param  string filename
+
+	 * @return void
+
+	 */
+
+	public function save($file)
+
+	{
+
+		$handle = strcasecmp(substr($file, -3), '.gz') ? fopen($file, 'wb') : gzopen($file, 'wb');
+
+		if (!$handle) {
+
+			throw new Exception("ERROR: Cannot write file '$file'.");
+
+		}
+
+		$this->write($handle);
+
+	}
+
+
+
+
+
+	/**
+
+	 * Writes dump to logical file.
+
+	 * @param  resource
+
+	 * @return void
+
+	 */
+
+	public function write($handle = null)
+
+	{
+
+		if ($handle === null) {
+
+			$handle = fopen('php://output', 'wb');
+
+		} elseif (!is_resource($handle) || get_resource_type($handle) !== 'stream') {
+
+			throw new Exception('Argument must be stream resource.');
+
+		}
+
+
+
+		$tables = $views = array();
+
+
+
+		$res = $this->connection->query('SHOW FULL TABLES');
+
+		while ($row = $res->fetch_row()) {
+
+			if ($row[1] === 'VIEW') {
+
+				$views[] = $row[0];
+
+			} else {
+
+				$tables[] = $row[0];
+
+			}
+
+		}
+
+		$res->close();
+
+
+
+		$tables = array_merge($tables, $views); // views must be last
+
+
+
+		$this->connection->query('LOCK TABLES `' . implode('` READ, `', $tables) . '` READ');
+
+
+
+		$db = $this->connection->query('SELECT DATABASE()')->fetch_row();
+
+		fwrite($handle, '-- Created at ' . date('j.n.Y G:i') . " using David Grudl MySQL Dump Utility\n"
+
+			. (isset($_SERVER['HTTP_HOST']) ? "-- Host: $_SERVER[HTTP_HOST]\n" : '')
+
+			. '-- MySQL Server: ' . $this->connection->server_info . "\n"
+
+			. '-- Database: ' . $db[0] . "\n"
+
+			. "\n"
+
+			. "SET NAMES utf8;\n"
+
+			. "SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO';\n"
+
+			. "SET FOREIGN_KEY_CHECKS=0;\n"
+
+		);
+
+
+
+		foreach ($tables as $table) {
+
+			$this->dumpTable($handle, $table);
+
+		}