The format of the outputted date string. See the formattingoptions below. There are also severalpredefined date constantsthat may be used instead, so for example DATE_RSScontains the format string 'D, d M Y H:i:s'.
The following characters are recognized in theformatparameter stringformatcharacterDescriptionExample returned valuesDay------dDay of the month, 2 digits with leading zeros01to 31DA textual representation of a day, three lettersMonthrough SunjDay of the month without leading zeros1to 31l(lowercase 'L')A full textual representation of the day of the weekSundaythrough SaturdayNISO-8601 numeric representation of the day of the week (added inPHP 5.1.0)1(for Monday) through 7(for Sunday)SEnglish ordinal suffix for the day of the month, 2 charactersst, nd, rdorth. Works well with jwNumeric representation of the day of the week0(for Sunday) through 6(for Saturday)zThe day of the year (starting from 0)0through 365Week------WISO-8601 week number of year, weeks starting on Monday (added in PHP 4.1.0)Example: 42(the 42nd week in the year)Month------FA full textual representation of a month, such as January or MarchJanuarythrough DecembermNumeric representation of a month, with leading zeros01through 12MA short textual representation of a month, three lettersJanthrough DecnNumeric representation of a month, without leading zeros1through 12tNumber of days in the given month28through 31Year------LWhether it's a leap year1if it is a leap year, 0otherwise.oISO-8601 year number. This has the same value asY, except that if the ISO week number(W) belongs to the previous or next year, that yearis used instead. (added in PHP 5.1.0)Examples: 1999or 2003YA full numeric representation of a year, 4 digitsExamples: 1999or 2003yA two digit representation of a yearExamples: 99or 03Time------aLowercase Ante meridiem and Post meridiemamor pmAUppercase Ante meridiem and Post meridiemAMor PMBSwatch Internet time000through 999g12-hour format of an hour without leading zeros1through 12G24-hour format of an hour without leading zeros0through 23h12-hour format of an hour with leading zeros01through 12H24-hour format of an hour with leading zeros00through 23iMinutes with leading zeros00to 59sSeconds, with leading zeros00through 59uMicroseconds (added in PHP 5.2.2)Example: 654321Timezone------eTimezone identifier (added in PHP 5.1.0)Examples: UTC, GMT, Atlantic/AzoresI(capital i)Whether or not the date is in daylight saving time1if Daylight Saving Time, 0otherwise.ODifference to Greenwich time (GMT) in hoursExample: +0200PDifference to Greenwich time (GMT) with colon between hours and minutes (added in PHP 5.1.3)Example: +02:00TTimezone abbreviationExamples: EST, MDT...ZTimezone offset in seconds. The offset for timezones west of UTC is alwaysnegative, and for those east of UTC is always positive.-43200through 50400Full Date/Time------cISO 8601 date (added in PHP 5)2004-02-12T15:19:21+00:00r» RFC 2822formatted dateExample: Thu, 21 Dec 2000 16:01:07 +0200USeconds since the Unix Epoch (January 1 1970 00:00:00 GMT)See also time()