Qualcuno potrebbe spiegarmi cosa fa questa classe:
Codice:
<?php
class PDOfactory{
public static function GetPDO($strDNS,$strUser,$strPass, $arParms){
$strKey=md5(serialize(array($strDNS,$strUser,$strPass,$arParam)));
if(!($GLOBALS["PDOS"][$strKey] istanceof PDO)){
$GLOBALS["PDOS"][$STRkEY]=new PDO ($strDNS,$strUser,$strPass,$arParm);
}
return ($GLOBALS["PDOS"][$strKey]);
}
}
?>