Date and Time programming in PHP & Javascript

Dates and Times in PHP and Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

date() function Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

date(format, when) Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

date() format • d - day of the month w/leading zero • l - day of the week (Sunday, Monday) • F - month (January, February) • m - month w/leading zero • Y - four-digit year Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

date() format • h - twelve hour format w/leading zero • i - minutes w/leading zero • s - seconds w/leading zero • a - am/pm Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

date() when Unix timestamp # of seconds since midnight, January 1 1970 (see the time() function) Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

strtotime() Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

strtotime(when) • now • 10 september 2000 • +1 day • +1 week 2 days 4 hours 2 seconds • next thursday • last monday Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Timezones (don’t bother) Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Get a list of timezones & offsets, use strtotime() Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Javascript Date object Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

var now = new Date() Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

var now = new Date() • now.getSeconds() • now.getMinutes() • now.getHours() • now.getDate() • now.getMonth() • now.getFullYear() Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

zero padding String(’00’ + now.getDate()).slice(-2) Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Pretty Dates Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

time_since http://natbat.net/code/php/timesince/timesince.txt Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

time_since(“1275436800”) “1 day 7 hours” Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

JavaScript Pretty Date http://ejohn.org/blog/javascript-pretty-date/ Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

prettydate(“06/02/2010”) “Yesterday” Javascript Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Dave Ross • davidmichaelross.com • daveross.tel • suburbanchicagophp.org Dave Ross : Suburban Chicago PHP & Web Development Meetup : suburbanchicagophp.org : June 3, 2010

Date and Time programming in PHP & Javascript

by Dave Ross on Jun 02, 2010

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