PHP manuál : function.checkdate.html


checkdate

checkdate

(PHP 3, PHP 4, PHP 5)

checkdate -- Validate a Gregorian date

Description

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

Returns TRUE if the date given is valid; otherwise returns FALSE. Checks the validity of the date formed by the arguments. A date is considered valid if:

  • year is between 1 and 32767 inclusive

  • month is between 1 and 12 inclusive

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

Example 1. checkdate() example

<?php
var_dump
(checkdate(12, 31, 2000));
var_dump(checkdate(2, 29, 2001));
?>

The above example will output:

bool(true)
bool(false)

See also mktime() and strtotime().


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