date and time function in PHP

These functions allow you to get the date and time from the server where your PHP scripts are running. You can use these functions to format the date and time in many different ways.

This lesson is a bit long, but look at it more like a reference. You don't have to read every line of code in this article.

#1.checkdate (Validate a Gregorian date)

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.

<?php
var_dump(checkdate(12, 31, 2000));
var_dump(checkdate(2, 29, 2001));
?>
The above example will output:
bool(true)
bool(false)

Learn how to Format a local time/date >>