Date/Time
por favor, corregid:
s/anyo/año/
checkdate
(PHP 4, PHP 5)
checkdate — 验证一个格里高里日期
说明
bool checkdate
( int $month
, int $day
, int $year
)
如果给出的日期有效则返回 TRUE，否则返回 FALSE。检查由参数构成的日期的合法性。日期在以下情况下被认为有效：
- year 的值是从 1 到 32767
- month 的值是从 1 到 12
- Day 的值在给定的 month 所应该具有的天数范围之内，闰年已经考虑进去了。
Example#1 checkdate() 例子
<?php
var_dump(checkdate(12, 31, 2000));
var_dump(checkdate(2, 29, 2001));
?>
上例将输出：
bool(true) bool(false)
参见 mktime() 和 strtotime()。
add a note
User Contributed Notescheckdate
el dot vartauy__ at t__gmail dot com
01-Mar-2008 02:18
01-Mar-2008 02:18
for funny leap year detection:
<?php
function is_leap($year=NULL) {
return checkdate(2, 29, ($year==NULL)? date('Y'):$year); // true if is a leap year
}
?>
wasile_ro[at]yahoo[dot]com
08-Oct-2007 10:30
08-Oct-2007 10:30
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], $matches[1])) {
return true;
}
}
return false;
}
jens wittmann
28-Aug-2007 11:29
28-Aug-2007 11:29
for checking the rime use this:
function checktime($hour, $minute) {
if ($hour > -1 && $hour < 24 && $minute > -1 && $minute < 60) {
return true;
}
}
brenig code
15-Aug-2007 02:21
15-Aug-2007 02:21
<?php
/**
* check a date combo of the 2
*/
function checkData($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,$yy);
}
}
return false;
}
?>
a34 at yahoo dot com
09-Jul-2007 08:21
09-Jul-2007 08:21
checkData function posted below does not consider a date entered such as 03/27c/2000. The c will cause it to crash. Here is the fix.
function checkData($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 11:49
04-Dec-2006 11:49
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;
}
?>