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function delfile($dir)
{
if (is_dir($dir))
{
$dh=opendir($dir);
while (false !== ( $file = readdir ($dh)))
{
if($file!="." && $file!="..")
{
$fullpath=$dir."/".$file;
if(!is_dir($fullpath))
{
unlink($fullpath);
}
else
{
delfile($fullpath);
}
}
}
closedir($dh);
}
}
function deldir($dir)
{
delfile($dir);
if (is_dir($dir))
{
rmdir($dir); //dir must be empty
}
return true;
}


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<?php
function genpage(&$sql,$page_size=10)
{
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      $page = $_GET["page"];
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<?php
/**
* @author wyt
*
*/
class zip {
private $_zipObj=null;
private $_zipfcArr=array();
private $_basePath=null;
private $_zipName;
/**
* init
* @param zipÎļþÃû³Æ $zipName
*/
function __construct($zipName){
$this->_zipName=$zipName;
$this->_zipObj= ......
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