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The PHP date function is used to format a time and/or date.

The PHP Date Function

The PHP date function formats a timestamp to a more readable date and time.

A timestamp is a sequence of characters, denoting the date and/or time at which a certain event occurred.

Syntax

date(format,timestamp)

Parameter Description

format Required. Specifies the format of the timestamp

timestamp Optional. Specifies a timestamp. Default is the current date and time

PHP Date Format the Date

The required format parameter in the date function specifies how to format the date/time.

Here are some characters that can be used:

• d Represents the day of the month (01 to 31)

• m Represents a month (01 to 12)

• Y Represents a year (in four digits)

A list of all the characters that can be used in the format parameter, can be found in our PHP Date reference.

Other characters, like or " " can also be inserted between the letters to add additional formatting:

<?php

echo date("Y/m/d") . "<br

echo date("Y.m.d") . "<br

echo date("Y-m-d");

?>

The output of the code above could be something like this:

2009/05/11

2009.05.11

2009-05-11

PHP Date Adding a Timestamp

The optional timestamp parameter in the date function specifies a timestamp. If you do not specify a timestamp, the current date and time will be used.

The mktime function returns the Unix timestamp for a date.

The Unix timestamp contains the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time specified.

Syntax for mktime mktime(hour,minute,second,month,day,year,is_dst)

To go one day in the future we simply add one to the day argument of mktime :

<?php

$tomorrow = mktime(0,0,0,date("m"),date("d")+1,date("Y

echo "Tomorrow is ".date("Y/m/d", $tomorrow);

?>

The output of the code above could be something like this:

Tomorrow is 2009/05/12

Complete PHP Date Reference

For a complete reference of all date functions, go to our complete PHP Date Reference.

The reference contains a brief description, and examples of use, for each function!

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