Date/Time
for funny leap year detection:
<?php
function is_leap($year=NULL) {
return checkdate(2, 29, ($year==NULL)? date('Y'):$year); // true if is a leap year
}
?>
checkdate
(PHP 4, PHP 5)
checkdate — Zistiť platnosť gregoriánskeho dátumu
Popis
bool checkdate
( int $mesiac
, int $dan
, int $rok
)
Vracia TRUE, ak daný dátum je platný, inak vracia FALSE. Zisťuje platnosť dátumu formovaného argumentami. Dátum sa považuje za platný ak:
- je rok medzi 1 a 32767 vrátane
- je mesiac medzi 1 a 12 vrátane
- Den je medzi povolenými počtom dní pre daný mesiac . Priestupné rok y sa berú v úvahu.
Tiež pozri mktime() a strtotime().
add a note
User Contributed Notescheckdate
el dot vartauy__ at t__gmail dot com
29-Feb-2008 10:18
29-Feb-2008 10:18
wasile_ro[at]yahoo[dot]com
08-Oct-2007 07:30
08-Oct-2007 07:30
here's a cool function to validate a mysql datetime:
function isValidDateTime($dateTime)
{
if (preg_match("/^(\d{4})-(\d{2})-(\d{2}) ([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$/", $dateTime, $matches)) {
if (checkdate($matches[2], $matches[3], $matches[1])) {
return true;
}
}
return false;
}
jens wittmann
28-Aug-2007 08:29
28-Aug-2007 08:29
for checking the rime use this:
function checktime($hour, $minute) {
if ($hour > -1 && $hour < 24 && $minute > -1 && $minute < 60) {
return true;
}
}
brenig code
14-Aug-2007 11:21
14-Aug-2007 11:21
<?php
/**
* check a date combo of the 2
*/
function checkData($date)
{
if (!isset($date) || $date=="")
{
return false;
}
list($dd,$mm,$yy)=explode("/",$date);
if ($dd!="" && $mm!="" && $yy!="")
{
if (is_numeric($yy) && is_numeric($mm) && is_numeric($dd))
{
return checkdate($mm,$dd,$yy);
}
}
return false;
}
?>
a34 at yahoo dot com
09-Jul-2007 05:21
09-Jul-2007 05:21
checkData function posted below does not consider a date entered such as 03/27c/2000. The c will cause it to crash. Here is the fix.
function checkData($mydate) {
list($yy,$mm,$dd)=explode("-",$mydate);
if (is_numeric($yy) && is_numeric($mm) && is_numeric($dd))
{
return checkdate($mm,$dd,$yy);
}
return false;
}
manuel84**at**mp4**dot**it
04-Dec-2006 07:49
04-Dec-2006 07:49
If you have a date like this gg/mm/aaaa and you'd like to verify that it is in the Italian Format you can use a function like this.
For other date format you can take this code and simply modify the list and explode line
<?php
/**
* check a date in the Italian format
*/
function checkData($date)
{
if (!isset($date) || $date=="")
{
return false;
}
list($dd,$mm,$yy)=explode("/",$date);
if ($dd!="" && $mm!="" && $yy!="")
{
return checkdate($mm,$dd,$yy);
}
return false;
}
?>