How does PHP display the expiration date of the second day of the second year

May I ask how PHP shows the time for applying for the "YYYY "/?
How can I display the time in PHP?

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30,29, 29,30, 29,30, 29,30 )); ############################# var $ mten = array (" null ", "A", "B", "C", "Ding", "Wu", "Ji", "Geng", "Xin", "Shen ", ""); # var $ mtwelve = array ("null", "Child (RAT)", "ugly (cow)", "Yin (Tiger )", "Mao (rabbit)", "Chen (Dragon)", "si (snake)", "Wu (horse)", "Wei (goat)", "Shen (monkey) "," you (chicken) "," Yellow (dog) "," Hai (pig) "); # var $ mmonth = array (" yellow ", "zheng", "2", "3", "4", "5", "6", "7", "8", "9", "10 ", "11", "12", "month"); var $ mday = array ("null", "First Day", "second day", "Third Day", "fourth day ", "5th", "6th", "7th", "8th", "9th", "10th", "11th", "12th", "13th", "14th ", "15", "16", "17", "18", "19th", "20", "Jun 1", "Jun 2", "Jun 3 ", "4th", "5th", "6th", "7th", "8th", "9th", "30th "); # lunar calendar day ##############################

# Assign the initial value # daily support var $ ten = 0; var $ twelve = 0; function MyPub ($ cYear, $ cMonth, $ cDay) {$ total = 11; # total days of the Gregorian calendar to December 21, 1900 $ mtotal = 0; # total days of the Gregorian calendar for ($ y = 1901; $ y <$ cYear; $ y ++) {$ total + = 365; if ($ y % 4 = 0) $ total ++;} # add the switch ($ cMonth) for several months in the current year {case 12: $ total + = 30; case 11: $ total + = 31; case 10: $ total + = 30; case 9: $ total + = 31; case 8: $ total + = 31; case 7: $ total + = 30; case 6: $ total + = 31; case 5: $ total + = 30; case 4: $ total + = 31; case 3: $ total + = 28; case 2: $ total + = 31;} # add one day if the current year is a leap year if ($ cYear % 4 = 0 and $ cMonth> 2) {$ total ++;} $ total + = $ cDay-1; ############################# determine whether the number of days of the lunar calendar has exceeded days of the Gregorian calendar $ flag = 0; for ($ j = 0; $ j <= 120; $ j ++) {$ I = 1; for ($ I = 1; $ I <= 13; $ I ++) {$ mtotal + = $ this-> everyCMonth [$ j] [$ I]; if ($ mtotal >=$ total) {$ flag = 1; break;} if ($ flag = 1) break;} return array ("m" => $ j, "d" => $ I, "t" => $ total, "n" => $ mtotal);} function Cal ($ Year, $ Month, $ Day) {$ Par = $ this-> MyPub ($ Year, $ Month, $ Day ); $ md = $ this-> everyCMonth [$ Par ["m"] [$ Par ["d"]-($ Par ["n"]-$ Par [" t "]); $ week = ($ Par ["t"] + 5) % 7; if ($ this-> everyCMonth [$ Par ["m"] [0] <> 0 and $ this-> everyCMonth [$ Par ["m"] [0] <$ Par ["d"]) {$ mm = $ Par ["d"]-1;} else {$ mm = $ Par ["d"];} if ($ Par ["d"] ==$ this-> everyCMonth [$ Par ["d"] [0] + 1 and $ this-> everyCMonth [$ Par ["d"] [0] <> 0) {$ cMonth = $ this-> mmonth [0]. $ this-> mmonth [$ mm]; # leap month} else {$ cMonth = $ this-> mmonth [$ mm]. $ this-> mmonth [13];} return array ("year" => $ this-> mten [$ this-> everyCMonth [$ Par ["m"] [14]. $ this-> mtwelve [$ this-> everyCMonth [$ Par ["m"] [15], "month" => $ cMonth, "day" => $ this-> mday [$ md], "week" => $ week) ;}//// call $ test = new Calendar; $ Year = $ test-> Cal (sp_2, 20); echo $ Year ["year"]. "Year ". $ Year ["month"]. $ Year ["day"]. "Week ". $ Year ["week"];

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