php教程数据库教程备份还原函数
文章提供一款备份还原函数这是利用php写的可以备份也可以还原的函数，同时也支持备份后保存到本地的代码哦，好了下面看源码。
*/
//备份还原函数
function write_file($sql,$filename) {
$re=true;
if(fopen(./www.bkjia.c0m/.$filename,w>!@$fp=fopen(./www.bkjia.c0m/.$filename,w+)) {$re=false; echo failed to open target file;}
if(!@fwrite($fp,$sql)) {$re=false; echo failed to write file;}
if(!@fclose($fp)) {$re=false; echo failed to close target file;}
return $re;
}
function down_file($sql,$filename){
ob_end_clean();
header(content-encoding: none);
header(content-type: .(strpos($_server['http_user_agent'], 'msie') ? 'application/octetstream' : 'application/octet-stream'));
header(content-disposition: .(strpos($_server['http_user_agent'], 'msie') ? 'inline; ' : 'attachment; ').filename=.$filename);
header(content-length: .strlen($sql));
header(pragma: no-cache);
header(expires: 0);
echo $sql;
$e=ob_get_contents();
ob_end_clean();
}
function writeable($dir){
if(!is_dir($dir)) {
@mkdir($dir, 0777);
}
if(is_dir($dir)){
if($fp = @fopen($dir/test.test, 'w')){
@fclose($fp);
@unlink($dir/test.test);
$writeable = 1;
}else {
$writeable = 0;
}
}
return $writeable;
}
function make_header($table){
global $db;
$sql=drop table if exists `.$table.`;n;
$db->query(show create table .$table);
$db->nextrecord();
$tmp=preg_replace(/n/,,$db->f(create table));
$sql.=$tmp.;n;
return $sql;
}
function make_record($table,$num_fields){
global $db;
$comma=;
$sql .= insert into .$table. values(;
for($i = 0; $i {$sql .= ($comma.'.mysql教程_escape_string($db->record[$i]).'); $comma = ,;}
$sql .= );n;
return $sql;
}
function show_msg($msgs){
$i=0;
$tm1=
提示信息：
;
while (list($k,$v)=each($msgs)){
$i=$i+1;
$t1=$i..$v.;
$t=$t.$t1;
}
$tm2=
;
return $tm1.$t.$tm2;
}function pageend(){
exit();
}
function import($fname) {
global $db;
$sqls=file($fname);
foreach($sqls as $sql){
str_replace(r,,$sql);
str_replace(n,,$sql);
if(!$db->query(trim($sql))) return false;
}
return true;
}
?>
http://www.bkjia.com/phpjc/630794.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/630794.htmltecharticlephp数据库备份还原函数文章提供一款备份还原函数这是利用php写的可以备份也可以还原的函数，同时也支持备份后保存到本地的代码哦，好...