PHP datetime function Date () 1, year-month-day echo date (' Y-m-j '), 2007-02-6 echo date (' Y-n-j '), 07-2-6 uppercase Y for year four digits, and lowercase y for year two digits, and lowercase m for month numbers ( With a leading), while lowercase n indicates a month number without a leading. echo Date (' Y-m-j '), 2007-feb-6 echo date (' y-m-d '); 2007-02-06 uppercase M represents the 3 abbreviation of the month, while lowercase m represents the number of the month (with leading 0); J with no caps, only lowercase J indicates the date of the month. No leading o; Use lowercase d if you need a month with a leading. echo Date (' Y-m-j '), 2007-feb-6 echo date (' Y-f-js '), 2007-february-6th capital M for the 3 abbreviation of the month, and uppercase F for full-text of the month. (no lowercase f) uppercase S denotes the suffix of the date, such as "St", "nd", "rd", and "th", depending on the date number. Summary: Indicates that the year can be capitalized with Y and lowercase y, indicating that the month can be in uppercase F, uppercase M, lowercase m, and lowercase n (two ways of representing characters and numbers, respectively); The day can be in lowercase d and lowercase j, and uppercase s represents the suffix of the date. 2, hour: minute: Seconds by default, the PHP explanation shows the time "Greenwich Mean Time", which differs from our local time by 8 hours. echo Date (' g:i:s a '); 5:56:57 am echo Date (' H:i:s a '), 05:56:57 am lowercase g for 12-hour, no leading 0, and lowercase h for 12-hour with leading 0. When using the 12-hour system, it is necessary to indicate that in the afternoon, lowercase a represents the lowercase "am" and "PM", and uppercase a denotes uppercase "AM" and "PM". echo Date (' G:i:s '), 14:02:26 uppercase G denotes 24-hour hours, but without preamble, and uppercase H for a summary of 24-hour hours with leading: the letter G means the hour without leading, the letter H denotes the hour with the preamble, the lowercase g, h for the 12-hour system, Uppercase G, h indicates a 24-hour system. 3, Leap year, Day of the week, Days of Echo date (' L '); whether leap years: 0 echo date (' L '); today is: Tuesday Echo date (' D '); today is: Tue Capital L Indicates whether a leap year, Boolean value, returns 1, otherwise 0 Lowercase L Indicates the day of the week is written in English full (Tuesday), while uppercase D is used to denote the 3-character abbreviation (Tue) of the days of the week. EchO Date (' W '); Today: 2 Echo Date (' W '); This week is the No. 06 week of the year, the lowercase w represents the day of the week, and the number form indicates that the uppercase W represents the number of weeks of the year echo date (' t '); this month is the 28-days echo date (' Z '); 36 Day Lowercase T indicates the current month and how many days lowercase Z means that today is the day of the Year 4, other echo date (' T '); The UTC Capital T indicates the server's time zone setting, echo date (' I '), 0 uppercase I to determine whether the current is daylight savings, 1 for true, otherwise 0 echo date (' U '), and 1170769424 capital U for the total number of seconds from January 1, 1970 to the present, is the Unix timestamp of the Unix time era. echo Date (' C '); 2007-02-06t14:24:43+00:00 lowercase C represents the ISO8601 date, the date format is YYYY-MM-DD, the letter T is used to interval the date and time, the time format is HH:MM:SS, and the time zone uses Greenwich Mean Time ( GMT) is indicated by the deviation. echo Date (' R '); Tue, Feb 2007 14:25:52 +0000 lowercase R represents the RFC822 date.
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