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Server : Apache System : Linux iZ2vcgyutqttsd1p850kl8Z 3.10.0-1160.92.1.el7.x86_64 #1 SMP Tue Jun 20 11:48:01 UTC 2023 x86_64 User : www ( 1000) PHP Version : 5.6.40 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv Directory : /www/wwwroot/saimikebio.com/mobile/include/kernel/library/ |
<?php
// +----------------------------------------------------------------------
// | EcTouch [ 专注移动电商: 商创网络科技 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2014 http://ectouch.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: EcTouch Team <zhong@ecmoban.com> (QQ: 2880175560)
// +----------------------------------------------------------------------
/**
* 内置MYSQL连接，只需要简单配置数据连接
使用方法如下
$db = new Dbbak('localhost','root','','ectouch_db','utf8','data/dbbak/');
//查找数据库内所有数据表
$tableArry = $db->getTables();
//备份并生成sql文件
if(!$db->exportSql($tableArry)){
echo '备份失败';
}else{
echo '备份成功';
}
//恢复导入sql文件夹
if($db->importSql()){
echo '恢复成功';
}else{
echo '恢复失败';
}
*/
class Dbbak {
public $dbhost; //数据库主机
public $dbuser; //数据库用户名
public $dbpw; //数据库密码
public $dbname; //数据库名称
public $dataDir; //备份文件存放的路径
protected $transfer = ""; //临时存放sql[切勿不要对该属性赋值，否则会生成错误的sql语句]
public function __construct($dbhost, $dbuser, $dbpw, $dbname, $charset = 'utf8', $dir = 'data/dbbak/') {
$this->connect($dbhost, $dbuser, $dbpw, $dbname, $charset); //连接数据
$this->dataDir = $dir;
}
/**
* 数据库连接
* @param string $host 数据库主机名
* @param string $user 用户名
* @param string $pwd 密码
* @param string $db 选择数据库名
* @param string $charset 编码方式
*/
public function connect($dbhost, $dbuser, $dbpw, $dbname, $charset = 'utf8') {
$this->dbhost = $dbhost;
$this->dbuser = $dbuser;
$this->dbpw = $dbpw;
$this->dbname = $dbname;
if (!$conn = mysql_connect($dbhost, $dbuser, $dbpw)) {
$this->error('无法连接数据库服务器');
return false;
}
mysql_select_db($this->dbname) or $this->error('选择数据库失败');
mysql_query("set names $charset");
return true;
}
/**
* 列表数据库中的表
* @param database $database 要操作的数据库名
* @return array $dbArray 所列表的数据库表
*/
public function getTables($database = '') {
$database = empty($database) ? $this->dbname : $database;
$result = mysql_query("SHOW TABLES FROM `$database`") or die(mysql_error());
// $result = mysql_list_tables($database);//mysql_list_tables函数不建议使用
while ($tmpArry = mysql_fetch_row($result)) {
$dbArry[] = $tmpArry[0];
}
return $dbArry;
}
/**
* 生成sql文件，导出数据库
* @param string $sql sql 语句
* @param number $subsection 分卷大小，以KB为单位，为0表示不分卷
*/
public function exportSql($table = '', $subsection = 0) {
$table = empty($table) ? $this->getTables() : $table;
if (!$this->_checkDir($this->dataDir)) {
$this->error('您没有权限操作目录,备份失败');
return false;
}
if ($subsection == 0) {
if (!is_array($table)) {
$this->_setSql($table, 0, $this->transfer);
} else {
for ($i = 0; $i < count($table); $i++) {
$this->_setSql($table[$i], 0, $this->transfer);
}
}
$fileName = $this->dataDir . date("Ymd", time()) . '_all.sql.php';
if (!$this->_writeSql($fileName, $this->transfer)) {
return false;
}
} else {
if (!is_array($table)) {
$sqlArry = $this->_setSql($table, $subsection, $this->transfer);
$sqlArry[] = $this->transfer;
} else {
$sqlArry = array();
for ($i = 0; $i < count($table); $i++) {
$tmpArry = $this->_setSql($table[$i], $subsection, $this->transfer);
$sqlArry = array_merge($sqlArry, $tmpArry);
}
$sqlArry[] = $this->transfer;
}
for ($i = 0; $i < count($sqlArry); $i++) {
$fileName = $this->dataDir . date("Ymd", time()) . '_part' . $i . '.sql.php';
if (!$this->_writeSql($fileName, $sqlArry[$i])) {
return false;
}
}
}
return true;
}
/*
* 载入sql文件，恢复数据库
* @param diretory $dir
* @return booln
* 注意:请不在目录下面存放其它文件和目录，以节省恢复时间
*/
public function importSql($dir = '') {
if (is_file($dir)) {
return $this->_importSqlFile($dir);
}
$dir = empty($dir) ? $this->dataDir : $dir;
if ($link = opendir($dir)) {
$fileArry = scandir($dir);
$pattern = "/_part[0-9]+.sql.php$|_all.sql.php$/";
$num = count($fileArry);
for ($i = 0; $i < $num; $i++) {
if (preg_match($pattern, $fileArry[$i])) {
if (false == $this->_importSqlFile($dir . $fileArry[$i])) {
return false;
}
}
}
return true;
}
}
//执行sql文件，恢复数据库
protected function _importSqlFile($filename = '') {
$sqls = file_get_contents($filename);
$sqls = substr($sqls, 13);
$sqls = explode("\n", $sqls);
if (empty($sqls))
return false;
foreach ($sqls as $sql) {
if (empty($sql))
continue;
if (!mysql_query(trim($sql))) {
$this->error('恢复失败：' . mysql_error());
return false;
}
}
return true;
}
/**
* 生成sql语句
* @param $table 要备份的表
* @return $tabledump 生成的sql语句
*/
protected function _setSql($table, $subsection = 0, &$tableDom = '') {
$tableDom .= "DROP TABLE IF EXISTS $table\n";
$createtable = mysql_query("SHOW CREATE TABLE $table");
$create = mysql_fetch_row($createtable);
$create[1] = str_replace("\n", "", $create[1]);
$create[1] = str_replace("\t", "", $create[1]);
$tableDom .= $create[1] . ";\n";
$rows = mysql_query("SELECT * FROM $table");
$numfields = mysql_num_fields($rows);
$numrows = mysql_num_rows($rows);
$n = 1;
$sqlArry = array();
while ($row = mysql_fetch_row($rows)) {
$comma = "";
$tableDom .= "INSERT INTO $table VALUES(";
for ($i = 0; $i < $numfields; $i++) {
$tableDom .= $comma . "'" . mysql_escape_string($row[$i]) . "'";
$comma = ",";
}
$tableDom .= ")\n";
if ($subsection != 0 && strlen($this->transfer) >= $subsection * 1000) {
$sqlArry[$n] = $tableDom;
$tableDom = '';
$n++;
}
}
return $sqlArry;
}
/**
* 验证目录是否有效，同时删除该目录下的所有文件
* @param diretory $dir
* @return booln
*/
protected function _checkDir($dir) {
if (!is_dir($dir)) {
@mkdir($dir, 0777);
}
if (is_dir($dir)) {
if ($link = opendir($dir)) {
$fileArry = scandir($dir);
for ($i = 0; $i < count($fileArry); $i++) {
if ($fileArry[$i] != '.' || $fileArry[$i] != '..') {
@unlink($dir . $fileArry[$i]);
}
}
}
}
return true;
}
/**
* 将数据写入到文件中
* @param file $fileName 文件名
* @param string $str 要写入的信息
* @return booln 写入成功则返回true,否则false
*/
protected function _writeSql($fileName, $str) {
$re = true;
if (!$fp = @fopen($fileName, "w+")) {
$re = false;
$this->error("在打开文件时遇到错误，备份失败!");
}
if (!@fwrite($fp, '<?php exit;?>' . $str)) {
$re = false;
$this->error("在写入信息时遇到错误，备份失败!");
}
if (!@fclose($fp)) {
$re = false;
$this->error("在关闭文件 时遇到错误，备份失败!");
}
return $re;
}
public function error($str) {
throw new Exception($str);
}
}
?>