网上找的源码，感觉很实用。故分享出来。(PHP源码)$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;\r\n"; $q1 = mysql_query("show tables"); while ($t = mysql_fetch_array($q1)) { $table = $t['0']; $q2 = mysql_query("show create table `$table`"); $sql = mysql_fetch_array($q2); $mysql .= $sql['Create Table'] . ";\r\n"; $q3 = mysql_query("select * from `$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);\r\n"; } } $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";