PHP & MySQL Date Format Reference

Title PHP PHP example MySQL MySQL example Notes
date($format, [$timestamp]) DATE_FORMAT(date, format)

Day & Date

Day of month with leading zero d 23 %d 23
Day of month without leading zero j 23 %e 23
Day of month with english ordinal suffix jS 23rd %D 23rd
Day name l Tuesday %W Tuesday
Day name abbreviated D Tue %a Tue
Day number in current week w 2 %w 2 0-Sunday, 6-Saturday
Day number in current year z 295 %j 296 PHP 0-365, MySQL 001-366

Month

Month of year with leading zero m 10 %m 10
Month of year without leading zero n 10 %c 10
Month name F October %M October
Month name abbreviated M Oct %b Oct

Year

Year Y 2018 %Y 2018
Year abbreviated y 18 %y 18

Hour

24 Hour with leading zero H 03 %H 03
24 Hour without leading zero G 3 %k 3
12 Hour with leading zero h 03 %h 03 %I also works in MySQL
12 Hour without leading zero g 3 %l 3
AM or PM A AM %p AM 'a' can also be used in php for lowercase result.

Minute

Minute with leading zero i 54 %i 54

Second

Seconds with leading zero s 22 %s 22 %S also works in MySQL

Other

Microseconds u 000000 %f 000000
Leap year L 0 '1' if leap year, '0' if not. No MySql alternative.
Documentation php.net - date() mysql.com - date_format()