php数据库备份脚本

代码如下：

?php

// 备份数据库

$host = localhost

$user = root //数据库账号

$password = ; //数据库密码

$dbname = mysql //数据库名称

// 这里的账号、密码、名称都是从页面传过来的

if (!mysql_connect($host, $user, $password)) // 连接mysql数据库

{

echo '数据库连接失败，请核对后再试';

exit;

}

if (!mysql_select_db($dbname)) // 是否存在该数据库

{

echo '不存在数据库:' . $dbname . ',请核对后再试';

exit;

}

mysql_query(set names 'utf8'

$mysql = set charset utf8;

$q1 = mysql_query(show tables

while ($t = mysql_fetch_array($q1))

{

$table = $t[0];

$q2 = mysql_query(show create table `$table`

$sql = mysql_fetch_array($q2);

$mysql .= $sql['Create Table'] .

$q3 = mysql_query(select * from `$table`

while ($data = mysql_fetch_assoc($q3))

{

$keys = array_keys($data);

$keys = array_map('addslashes', $keys);

$keys = join('`,`', $keys);

$keys = ` . $keys . `

$vals = array_values($data);

$vals = array_map('addslashes', $vals);

$vals = join(',', $vals);

$vals = ' . $vals . '

$mysql .= insert into `$table`($keys) values($vals);

}

}

$filename = $dbname . date('Ymjgi') . .sql //存放路径，默认存放到项目最外层

$fp = fopen($filename, 'w');

fputs($fp, $mysql);

fclose($fp);

echo 数据备份成功

?