{"id":273,"date":"2016-07-28T14:25:26","date_gmt":"2016-07-28T14:25:26","guid":{"rendered":"https:\/\/barkhane.com\/php\/2016\/07\/28\/date-function-php\/"},"modified":"2024-03-03T15:00:12","modified_gmt":"2024-03-03T15:00:12","slug":"date-function-php","status":"publish","type":"post","link":"https:\/\/barkhane.com\/php\/date-function-php\/","title":{"rendered":"Date function in PHP"},"content":{"rendered":"

What is Date function in PHP ?<\/h2>\n

The date() function in PHP \u00a0formats a local date and time, and returns the formatted date string.<\/p>\n

Syntax :date(format,timestamp);<\/p>\n

for example<\/p>\n

    \n\n<?php\necho date(\\\"Y\/m\/d\\\") . \\\"<br>\\\";\necho \u00a0date(\\\"Y.m.d\\\") . \\\"<br>\\\";\necho date(\\\"Y-m-d\\\") . \\\"<br>\\\";\necho \u00a0date(\\\"l\\\");\n?>\n <\/code><\/pre>\n
output will be:<\/p>\n
2016\/07\/28
\n2016.07.28
\n2016-07-28
\nThursday<\/p>\n\n\n\n\n\n
Parameter<\/th>\nDescription<\/th>\n<\/tr>\n
format<\/td>\nRequired. Specifies the format of the outputted date string. The following characters can be used:<\/p>\n
    \n
  • d – The day of the month (from 01 to 31)<\/li>\n
  • D – A textual representation of a day (three letters)<\/li>\n
  • j – The day of the month without leading zeros (1 to 31)<\/li>\n
  • l (lowercase \\’L\\’) – A full textual representation of a day<\/li>\n
  • N – The ISO-8601 numeric representation of a day (1 for Monday, 7 for Sunday)<\/li>\n
  • S – The English ordinal suffix for the day of the month (2 characters st, nd, rd or th. Works well with j)<\/li>\n
  • w – A numeric representation of the day (0 for Sunday, 6 for Saturday)<\/li>\n
  • z – The day of the year (from 0 through 365)<\/li>\n
  • W – The ISO-8601 week number of year (weeks starting on Monday)<\/li>\n
  • F – A full textual representation of a month (January through December)<\/li>\n
  • m – A numeric representation of a month (from 01 to 12)<\/li>\n
  • M – A short textual representation of a month (three letters)<\/li>\n
  • n – A numeric representation of a month, without leading zeros (1 to 12)<\/li>\n
  • t – The number of days in the given month<\/li>\n
  • L – Whether it\\’s a leap year (1 if it is a leap year, 0 otherwise)<\/li>\n
  • o – The ISO-8601 year number<\/li>\n
  • Y – A four digit representation of a year<\/li>\n
  • y – A two digit representation of a year<\/li>\n
  • a – Lowercase am or pm<\/li>\n
  • A – Uppercase AM or PM<\/li>\n
  • B – Swatch Internet time (000 to 999)<\/li>\n
  • g – 12-hour format of an hour (1 to 12)<\/li>\n
  • G – 24-hour format of an hour (0 to 23)<\/li>\n
  • h – 12-hour format of an hour (01 to 12)<\/li>\n
  • H – 24-hour format of an hour (00 to 23)<\/li>\n
  • i – Minutes with leading zeros (00 to 59)<\/li>\n
  • s – Seconds, with leading zeros (00 to 59)<\/li>\n
  • u – Microseconds (added in PHP 5.2.2)<\/li>\n
  • e – The timezone identifier (Examples: UTC, GMT, Atlantic\/Azores)<\/li>\n
  • I (capital i) – Whether the date is in daylights savings time (1 if Daylight Savings Time, 0 otherwise)<\/li>\n
  • O – Difference to Greenwich time (GMT) in hours (Example: +0100)<\/li>\n
  • P – Difference to Greenwich time (GMT) in hours:minutes (added in PHP 5.1.3)<\/li>\n
  • T – Timezone abbreviations (Examples: EST, MDT)<\/li>\n
  • Z – Timezone offset in seconds. The offset for timezones west of UTC is negative (-43200 to 50400)<\/li>\n
  • c – The ISO-8601 date (e.g. 2013-05-05T16:34:42+00:00)<\/li>\n
  • r – The RFC 2822 formatted date (e.g. Fri, 12 Apr 2013 12:01:05 +0200)<\/li>\n
  • U – The seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)<\/li>\n<\/ul>\n
    and the following predefined constants can also be used (available since PHP 5.1.0):<\/p>\n
      \n
    • DATE_ATOM – Atom (example: 2013-04-12T15:52:01+00:00)<\/li>\n
    • DATE_COOKIE – HTTP Cookies (example: Friday, 12-Apr-13 15:52:01 UTC)<\/li>\n
    • DATE_ISO8601 – ISO-8601 (example: 2013-04-12T15:52:01+0000)<\/li>\n
    • DATE_RFC822 – RFC 822 (example: Fri, 12 Apr 13 15:52:01 +0000)<\/li>\n
    • DATE_RFC850 – RFC 850 (example: Friday, 12-Apr-13 15:52:01 UTC)<\/li>\n
    • DATE_RFC1036 – RFC 1036 (example: Fri, 12 Apr 13 15:52:01 +0000)<\/li>\n
    • DATE_RFC1123 – RFC 1123 (example: Fri, 12 Apr 2013 15:52:01 +0000)<\/li>\n
    • DATE_RFC2822 – RFC 2822 (Fri, 12 Apr 2013 15:52:01 +0000)<\/li>\n
    • DATE_RFC3339 – Same as DATE_ATOM (since PHP 5.1.3)<\/li>\n
    • DATE_RSS – RSS (Fri, 12 Aug 2013 15:52:01 +0000)<\/li>\n
    • DATE_W3C – World Wide Web Consortium (example: 2013-04-12T15:52:01+00:00)<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
timestamp<\/td>\nOptional. Specifies an integer Unix timestamp. Default is the current local time (time())<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
time()<\/strong> give the number of \u00a0second\u00a0since 1 st jan 1970 00:00:01<\/p>\n
base date in PHP <\/a>is Consider\u00a0 number of seconds since 1 st jan 1970 00:00:01<\/p>\n
To know how many seconds, minutes, hours, days, years are since is give as<\/p>\n
   \n\n$s=time();\necho \\\"<br\/>Number of seconds is $s\\\";\n$m=$s\/60;\necho \\\"<br\/>Number of minutes is $m\\\";\n$h=$m\/60;\necho \\\"<br\/>Number of hours is $h\\\";\n$d=$h\/24;\necho \\\"<br\/>Number of days is $d\\\";\n$y=$d\/365;\necho \\\"<br\/>Number of years is $y\\\";  <\/code><\/pre>\n
How to Validate Date \u00a0in PHP ?<\/h2>\n
to understand \u00a0take an example<\/p>\n
$d=29;
\n$m=2;
\n$y=2016;<\/p>\n
  \n\nif(checkdate($m,$d,$y)) \/\/validates a date\necho \\\"<br\/>valid date\\\";\nelse\necho \\\"<br\/>Invalid date\\\";   <\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
What is Date function in PHP ? The date() function in PHP \u00a0formats a local date and time, and returns […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-273","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/posts\/273","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/comments?post=273"}],"version-history":[{"count":0,"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/posts\/273\/revisions"}],"wp:attachment":[{"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/media?parent=273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/categories?post=273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/barkhane.com\/php\/wp-json\/wp\/v2\/tags?post=273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}