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Validate a Gregorian date
(PHP 4, PHP 5)
Checks the validity of the date formed by the arguments. A date is considered valid if each parameter is properly defined. Parameters
ExamplesExample 439. checkdate() example<?phpThe above example will output: bool(true)
See Also
Code Examples / Notes » checkdatemanuel84**at**mp4**dot**it
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; } ?> wasile_ro
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], $matches[1])) { return true; } } return false; } daniel
Hello, here is simple function to get number of days in month: function getNumberOfDays($year, $month) { $day = 1; while(checkdate($month,$day,$year)) $day++; return $day-1; } Dan anonymous
For daniel at mejta dot net Here is an even simpler and more efficient way of getting the number of days in a month : $month = 11; $year = 2007; $daysinmonth = date("t", mktime(0, 0, 0, $month, 1, $year)); jens wittmann
for checking the rime use this: function checktime($hour, $minute) { if ($hour > -1 && $hour < 24 && $minute > -1 && $minute < 60) { return true; } } a34
checkData function posted below does not consider a date entered such as 03/27c/2000. The c will cause it to crash. Here is the fix. function checkData($mydate) { list($yy,$mm,$dd)=explode("-",$mydate); if (is_numeric($yy) && is_numeric($mm) && is_numeric($dd)) { return checkdate($mm,$dd,$yy); } return false; } brenig code
<?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; } ?> |
Change Language
checkdate date_create date_date_set date_default_timezone_get date_default_timezone_set date_format date_isodate_set date_modify date_offset_get date_parse date_sun_info date_sunrise date_sunset date_time_set date_timezone_get date_timezone_set date getdate gettimeofday gmdate gmmktime gmstrftime idate localtime microtime mktime strftime strptime strtotime time timezone_abbreviations_list timezone_identifiers_list timezone_name_from_abbr timezone_name_get timezone_offset_get timezone_open timezone_transitions_get |
