Snippets Calendars Dates
Calendars Dates
Date Validator
by: Riccardo Pasquini
|
February 6, 2001
Version: 1.0
Type: Function
Category: Calendars/Dates
License: GNU General Public License
Description: a date validator :) warning Y10K bug
//Riccardo Pasquini
//07/02/2001
//for infos r.pasquini@www.doublet.it
function chkDate($txtData)
{
//controlla della data //date validation
//controllo del formato gg/mm/aaaa e recupero dei componenti della data :) //Date Format DD/MM/YYYY
if(ereg("([0-9]{2})/([0-9]{2})/([0-9]{4})", $txtData, $aDate)) //$aDate[1]->GG, $aDate[2]->MM e $aDate[3]->AAAA
{ //formato corretto controlla i valori
$aGiorni=array(0,31,28,31,30,31,30,31,31,30,31,30,31);
if($aDate[3]<2000 || $aDate[3]>9999) //y10k bug :)))
$errMex.=((strlen($errMex)>0)?"<br>":"")."Anno non valido"; //not a valid Year
else
if($aDate[2]<1 || $aDate[2]>12)
$errMex.=((strlen($errMex)>0)?"<br>":"")."Mese non valido"; //not a valid Month
else
{
$giorni=($aGiorni[$aDate[2]-0]+((2==$aDate[2])?((!($aDate[3]%4) && $aDate[3]%100) || !($aDate[3]%400)):0));
if($aDate[1]<1 || $aDate[1]>$giorni)
$errMex.=((strlen($errMex)>0)?"<br>":"")."Giorno non valido"; //not a valid Day
else
return true;
}
}
else
$errMex.=((strlen($errMex)>0)?"<br>":"")."Formato della data errato (GG/MM/AAAA)"; //not a valid date format
return $errMex;
}
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