checkdate

(PHP 4, PHP 5)

checkdateValidate a Gregorian date

Description

bool checkdate ( int $month , int $day , int $year )

Checks the validity of the date formed by the arguments. A date is considered valid if each parameter is properly defined.

Parameters

month

The month is between 1 and 12 inclusive.

day

The day is within the allowed number of days for the given month. Leap years are taken into consideration.

year

The year is between 1 and 32767 inclusive.

Return Values

Returns TRUE if the date given is valid; otherwise returns FALSE.

Examples

Example #1 checkdate() example

<?php
var_dump
(checkdate(12312000));
var_dump(checkdate(2292001));
?>

The above example will output:

bool(true)
bool(false)

See Also

  • mktime() - Get Unix timestamp for a date
  • strtotime() - Parse about any English textual datetime description into a Unix timestamp

Коментарии

With DateTime you can make the shortest date&time validator for all formats.

<?php

function validateDate($date$format 'Y-m-d H:i:s')
{
   
$d DateTime::createFromFormat($format$date);
    return 
$d && $d->format($format) == $date;
}

var_dump(validateDate('2012-02-28 12:12:12')); # true
var_dump(validateDate('2012-02-30 12:12:12')); # false
var_dump(validateDate('2012-02-28''Y-m-d')); # true
var_dump(validateDate('28/02/2012''d/m/Y')); # true
var_dump(validateDate('30/02/2012''d/m/Y')); # false
var_dump(validateDate('14:50''H:i')); # true
var_dump(validateDate('14:77''H:i')); # false
var_dump(validateDate(14'H')); # true
var_dump(validateDate('14''H')); # true

var_dump(validateDate('2012-02-28T12:12:12+02:00''Y-m-d\TH:i:sP')); # true
# or
var_dump(validateDate('2012-02-28T12:12:12+02:00'DateTime::ATOM)); # true

var_dump(validateDate('Tue, 28 Feb 2012 12:12:12 +0200''D, d M Y H:i:s O')); # true
# or
var_dump(validateDate('Tue, 28 Feb 2012 12:12:12 +0200'DateTime::RSS)); # true
var_dump(validateDate('Tue, 27 Feb 2012 12:12:12 +0200'DateTime::RSS)); # false
# ...
2013-09-12 15:46:32
http://php5.kiev.ua/manual/ru/function.checkdate.html

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