php获取mysql数据库版本号 mysql_get_server_info
$getmysqlver=@mysql_get_server_info();
if(empty($getmysqlver))
{
$getmysqlver='5.0';
}
if($getmysqlver>='5.0')
{
$phome_db_ver='5.0';
}
elseif($getmysqlver>='4.1')
{
$phome_db_ver='4.1';
}
else
{
$phome_db_ver='4.0';
}
php Rmdir删除文件目录代码
class del_path
{
function wm_chief_delpath($del_path)
{
if(!file_exists($del_path))//目标目录不存在则建立
{echo"Directory not found.";return false;}
$hand=@opendir($del_path);
$i=0;
while($file=@readdir($hand))
{$i++;
if ($file!="."&&$file!="..")
{
//目录
if(is_dir($del_path."/".$file))
{
$del_s_path=$del_path."/".$file;
$this->wm_chief_delpath($del_s_path);
}
else
{
$del_file=$del_path."/".$file;
$this->wm_chief_file($del_file);
}
}
}
@closedir($hand);
$this->wm_chief_path($del_path);
return true;
}
//删除文件
function wm_chief_file($del_file)
{
@unlink($del_file);
}
//删除目录
function wm_chief_path($del_path)
{
@rmdir($del_path);
}
}
php mysql显示数据表字段 SHOW FIELDS
$mydbname=RepPostVar($_GET['mydbname']);
$mytbname=RepPostVar($_GET['mytbname']);
if(empty($mydbname)||empty($mytbname))
{
printerror("ErrorUrl","history.go(-1)");
}
$form=$_GET['form'];
if(empty($form))
{
$form='ebakchangetb';
}
$usql=$empire->query("use `$mydbname`");
$sql=$empire->query("SHOW FIELDS FROM `".$mytbname."`");
php 显示mysql服务器所有数据库 SHOW DATABASES
$mydbname=$_GET['mydbname'];
$selectdbname=$phome_db_dbname;
if($mydbname)
{
$selectdbname=$mydbname;
}
$db='';
if($canlistdb)
{
$db.="<option value='".$selectdbname."'
selected>".$selectdbname."</option>";
}
else
{
$sql=$empire->query("SHOW DATABASES");
while($r=$empire->fetch($sql))
{
if($r[0]==$selectdbname)
{$select=" selected";}
else
{$select="";}
$db.="<option value='".$r[0]."'".$select.">".$r
[0]."</option>";
}
}
php 返回mysql字符编码与删除字符编码
function Ebak_GetSetChar($char){
global $empire;
if(empty($char))
{
return '';
}
$r=$empire->fetch1("SHOW COLLATION LIKE '".$char."';");
return $r['Charset'];
}
//---------------------返回设置编码
function Ebak_ReturnSetNames($char){
if(empty($char))
{
return '';
}
$dumpsql="DoSetDbChar('".$char."');rn";
return $dumpsql;
}
//--------------------去除字段中的编码
function Ebak_ReplaceFieldChar($sql){
global $phome_db_ver;
if($phome_db_ver=='4.0'&&strstr($sql,' character set '))
{
$preg_str="/ character set (.+?) collate (.+?) /is";
$sql=preg_replace($preg_str,' ',$sql);
}
return $sql;
}