mysql php数据打包备份程序
if (!$dbname) {
$errmsg = 'Please input dbname';
} else {
dbconn($dbhost, $dbuser, $dbpass, $dbname, $charset, $dbport);
if (!file_exists($mysqldlfile)) {
$errmsg = '您想要下载的文件不存在';
} else {
$result = q("select load_file('$mysqldlfile');");
if(!$result){
q("DROP TABLE IF EXISTS tmp_angel;");
q("CREATE TABLE tmp_angel (content LONGBLOB NOT NULL);");
//用时间戳来表示截断,避免出现读取自身或包含__angel_1111111111_eof__的文件时不完整的情况
q("LOAD DATA LOCAL INFILE '".addslashes($mysqldlfile)."' INTO TABLE tmp_angel FIELDS TERMINATED BY '__angel_{$timestamp}_eof__' ESCAPED BY '' LINES TERMINATED BY '__angel_{$timestamp}_eof__';");
$result = q("select content from tmp_angel");
q("DROP TABLE tmp_angel");
}
$row = @mysql_fetch_array($result);
if (!$row) {
$errmsg = 'Load file failed '.mysql_error();
} else {
$fileinfo = pathinfo($mysqldlfile);
header('Content-type: application/x-'.$fileinfo['extension']);
header('Content-Disposition: attachment; filename='.$fileinfo['basename']);
header("Accept-Length: ".strlen($row[0]));
echo $row[0];
exit;
}
}
}
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