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The broad and profound lunar algorithm

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/** * Lunar Calendar The profound lunar calendar * Raw data and algorithmic ideas from S&s Lab http://www.focus-2000.com Unfortunately, the site seems to be closed. */ /* The number of days of the lunar month. Each element is one year. The data in each element is: [0] is the leap month in which months, 0 for no leap month; [1] to [13] is each year 12 or 13 months of the monthly number of days; [14] is the zodiac order of the Year, [15] is the earthly order of the Year */
  6. function Lunarcalendar ($month, $year)
  8. {
  10. Global $lnlunarcalendar;
  12. /**
  14. * Lunar Calendar The profound lunar calendar
  16. * Raw data and algorithmic ideas from S&s
  18. Lab http://www.focus-2000.com Unfortunately, the site seems to be closed.
  20. */
  22. /*
  24. The number of days of the lunar month.
  26. Each element is one year. The data in each element is:
  28. [0] is the leap month in which months, 0 for no leap month;
  30. [1] to [13] is each year 12 or 13 months of the monthly number of days;
  32. [14] is the zodiac order of the Year,
  34. [15] is the earthly order of the Year
  36. */
  38. $everymonth = Array (
  40. 0 = Array (8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 29, 30, 7, 1),
  42. 1 = Array (0, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29, 0, 8, 2),
  44. 2 = Array (0, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 0, 9, 3),
  46. 3 = Array (5, 29, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 10, 4),
  48. 4 = Array (0, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 0, 1, 5),
  50. 5 = Array (0, 30, 30, 29, 30, 30, 29, 29, 30, 29, 30, 29, 30, 0, 2, 6),
  52. 6 = Array (4, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 3, 7),
  54. 7 = Array (0, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 4, 8),
  56. 8 = Array (0, 30, 29, 29, 30, 30, 29, 30, 29, 30, 30, 29, 30, 0, 5, 9),
  58. 9 = Array (2, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29, 30, 6, 10),
  60. Ten = = Array (0, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29, 0, 7, 11),
  62. One by one = Array (6, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 8, 12),
  64. Array (0, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 0, 9, 1),
  66. Array (0, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 0, 10, 2),
  68. + = Array (5, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 29, 30, 1, 3),
  70. + = Array (0, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 0, 2, 4),
  72. + = Array (0, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 3, 5),
  74. + = Array (2, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 4, 6),
  76. + = Array (0, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 0, 5, 7),
  78. + = Array (7, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 30, 6, 8),
  80. + = Array (0, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 0, 7, 9),
  82. + = Array (0, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 0, 8, 10),
  84. + = Array (5, 30, 29, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 9, 11),
  86. + = Array (0, 29, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 0, 10, 12),
  88. Array (0, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 29, 0, 1, 1),
  90. + = Array (4, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 2, 2),
  92. + = Array (0, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 0, 3, 3),
  94. + = Array (0, 30, 29, 29, 30, 29, 30, 29, 30, 29, 30, 30, 30, 0, 4, 4),
  96. + = Array (2, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 30, 5, 5),
  98. + = Array (0, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 0, 6, 6),
  100. + = Array (6, 29, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 7, 7),
  102. + = Array (0, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 0, 8, 8),
  104. + = Array (0, 30, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 0, 9, 9),
  106. = = Array (5, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 29, 30, 10, 10),
  108. + = Array (0, 29, 30, 29, 30, 30, 29, 30, 29, 30, 30, 29, 30, 0, 1, 11),
  110. Array (0, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 0, 2, 12),
  112. The array (3, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 30, 29, 3, 1),
  114. Panax Notoginseng = Array (0, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 0, 4, 2),
  116. + = Array (7, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 5, 3),
  118. The "=" Array (0, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 29, 30, 0, 6, 4),
  120. + = Array (0, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 0, 7, 5),
  122. The array (6, 30, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 8, 6),
  124. 0, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 0, 9, 7,
  126. + = Array (0, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 10, 8),
  128. +-= Array (4, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 1, 9),
  130. A/= Array (0, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 30, 0, 2, 10),
  132. + = Array (0, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 0, 3, 11),
  134. + = Array (2, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 4, 12),
  136. = = Array (0, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 0, 5, 1),
  138. = = Array (7, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 6, 2),
  140. Array (0, 29, 30, 30, 29, 30, 30, 29, 29, 30, 29, 30, 29, 0, 7, 3),
  142. Wuyi = = Array (0, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 0, 8, 4),
  144. In the array (5, 29, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 9, 5),
  146. + = Array (0, 29, 30, 29, 29, 30, 30, 29, 30, 30, 29, 30, 29, 0, 10, 6),
  148. The array (0, 30, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 0, 1, 7),
  150. + = Array (3, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 2, 8),
  152. + = Array (0, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 0, 3, 9),
  154. + = Array (8, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 29, 4, 10),
  156. + = Array (0, 30, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 0, 5, 11),
  158. (0, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 0, 6, 12),
  160. Array (6, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 7, 1),
  162. (0, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 0, 8, 2),
  164. + = Array (0, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 0, 9, 3),
  166. + = Array (4, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29, 10, 4),
  168. + = Array (0, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 0, 1, 5),
  170. + = Array (0, 29, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 0, 2, 6),
  172. $ = Array (3, 30, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 3, 7),
  174. 0, 30, 30, 29, 30, 30, 29, 29, 30, 29, 30, 29, 30, 0, 4, 8,
  176. (7, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 5, 9),
  178. The array (0, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 6, 10),
  180. + = Array (0, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 0, 7, 11),
  182. + = Array (5, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 29, 30, 8, 12),
  184. + = Array (0, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 0, 9, 1),
  186. (0, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 0, 10, 2),
  188. 4, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 1, 3,
  190. The array (0, 30, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 0, 2, 4),
  192. + = Array (8, 30, 30, 29, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 3, 5),
  194. The + = Array (0, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 29, 0, 4, 6),
  196. + = Array (0, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 5, 7),
  198. + = Array (6, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 6, 8),
  200. + = Array (0, 30, 29, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 0, 7, 9),
  202. Bayi = Array (0, 29, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 0, 8, 10),
  204. (4, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 9, 11),
  206. The same as array (0, 30, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 0, 10, 12),
  208. + = Array (10, 30, 29, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 1, 1),
  210. $ = Array (0, 29, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 0, 2, 2),
  212. + = Array (0, 29, 30, 30, 29, 30, 30, 29, 30, 29, 30, 29, 29, 0, 3, 3),
  214. The array (6, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 30, 29, 29, 4, 4),
  216. The array (0, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 0, 5, 5),
  218. In the array (0, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 30, 0, 6, 6),
  220. + = Array (5, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 30, 7, 7),
  222. The 0, 29, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 0, 8, 8,
  224. the "= =" Array (0, 29, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 0, 9, 9),
  226. (3, 29, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 10, 10),
  228. 94 = = Array (0, 30, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 0, 1, 11),
  230. The array (8, 29, 30, 30, 29, 30, 29, 30, 30, 29, 29, 30, 29, 30, 2, 12),
  232. + = Array (0, 29, 30, 29, 30, 30, 29, 30, 29, 30, 30, 29, 29, 0, 3, 1),
  234. $ = Array (0, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 29, 0, 4, 2),
  236. 98 = = Array (5, 30, 29, 29, 30, 29, 29, 30, 30, 29, 30, 30, 29, 30, 5, 3),
  238. (0, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 0, 6, 4),
  240. + = Array (0, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 0, 7, 5),
  242. 101 = = Array (4, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 8, 6),
  244. 102 = = Array (0, 30, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 0, 9, 7),
  246. 103 = = Array (0, 30, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30, 0, 10, 8),
  248. 104 = = Array (2, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 1, 9),
  250. + = Array (0, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 0, 2, 10),
  252. 106 = = Array (7, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 30, 3, 11),
  254. 107 = = Array (0, 29, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 30, 0, 4, 12),
  256. 108 = = Array (0, 30, 29, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 0, 5, 1),
  258. 109 = = Array (5, 30, 30, 29, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 6, 2),
  260. + = Array (0, 30, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 0, 7, 3),
  262. 111 = = Array (0, 30, 29, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 0, 8, 4),
  264. The array (4, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 9, 5),
  266. 113 = = Array (0, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 29, 30, 0, 10, 6),
  268. [+] Array (9, 29, 30, 29, 30, 29, 30, 29, 30, 30, 29, 30, 29, 30, 1, 7),
  270. (0, 29, 30, 29, 29, 30, 29, 30, 30, 30, 29, 30, 29, 0, 2, 8),
  272. The $ = Array (0, 30, 29, 30, 29, 29, 30, 29, 30, 30, 29, 30, 30, 0, 3, 9),
  274. 117 = = Array (6, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 30, 4, 10),
  276. 118 = = Array (0, 29, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 30, 0, 5, 11),
  278. 119 = = Array (0, 30, 29, 30, 29, 30, 29, 29, 30, 29, 29, 30, 30, 0, 6, 12),
  280. + = Array (4, 29, 30, 30, 30, 29, 30, 29, 29, 30, 29, 30, 29, 30, 7, 1)
  282. );
  286. $mten = $lnlunarcalendar [' Tiangan '];//lunar zodiac
  288. $mtwelve = $lnlunarcalendar [' Dizhi '];//lunar earthly Branches
  290. $mmonth = $lnlunarcalendar [' Month '];//lunar month
  292. $mday = $lnlunarcalendar [' Day '];//lunar calendar
  294. Total Gregorian calendar days to December 21, 1900
  296. $total = 69 * 365 + 17 + 11;
  298. Not until January 1, 1970.
  300. if ($year = = "" | | $month = = "" | | ($year < 1970 or $year > 2020)) Return '; Beyond this range is not counted
  302. Total number of days to be calculated for the Gregorian calendar date-starting from December 21, 1900
  306. for ($y = 1970; $y < $year; $y + +) {//first-year and
  308. $total + = 365;
  310. if ($y% 4 = = 0) $total + +;
  312. }
  314. Plus a few months in the year.
  316. $total + = gmdate ("Z", gmmktime (0, 0, 0, $month, 1, $year));
  318. Use the number of days of the lunar calendar to determine whether to exceed the Gregorian calendar days
  320. $flag 1 = 0; Determine the conditions for jumping out of a loop
  322. $LCJ = 0;
  324. while ($LCJ <= 120) {
  326. $lci = 1;
  328. while ($lci <= 13) {
  330. $mtotal + = $everymonth [$LCJ] [$LCI];
  332. if ($mtotal >= $total) {
  334. $flag 1 = 1;
  336. Break
  338. }
  340. $lci + +;
  342. }
  344. if ($flag 1 = = 1) break;
  346. $LCJ + +;
  348. }
  350. From above, get the $LCI for the current lunar month, $LCJ for the current agricultural calendar year
  352. Calculate the lunar date for the 1th month
  354. $fisrtdaylunar = $everymonth [$LCJ] [$lci]-($mtotal-$total);
  356. $results [' year '] = $mten [$everymonth [$LCJ][14]]. $mtwelve [$everymonth [$LCJ][15]]; What year is it now?
  358. $daysthismonth = gmdate ("T", gmmktime (0, 0, 0, $month, 1, $year)); The current month a few days
  360. $op = 1;
  362. for ($i = 1; $i <= $daysthismonth; $i + +) {
  364. $possiblelunarday = $fisrtdaylunar + $op-1; The Chinese lunar day after the theory is superimposed
  366. if ($possiblelunarday <= $everymonth [$LCJ] [$lci]) {//within the days of the month
  368. $results [$i] = $mday [$possiblelunarday];
  370. $op + = 1;
  372. }
  374. else {//not within the number of days of the month
  376. $results [$i] = $mday [1]; Back to 1st
  378. $fisrtdaylunar = 1;
  380. $op = 2;
  382. $curmonthnum = ($everymonth [$LCJ][0]! = 0)? 13:12; A few months ago.
  384. if ($lci + 1 > $curmonthnum) {//13th/14 months, go to next year
  386. $lci = 1;
  388. $LCJ = $LCJ + 1;
  390. For a year, and to write the new zodiac
  392. $results [' year ']. = '/'. $mten [$everymonth [$LCJ][14]]. $mtwelve [$everymonth [$LCJ][15]];
  394. }
  396. else {//still in this year
  398. $lci = $lci + 1;
  400. $LCJ = $LCJ;
  402. }
  404. }
  406. if ($results [$i] = = $mday [1]) {//each month should show what month it is
  408. if ($everymonth [$LCJ][0]! = 0) {//year with leap month
  410. $MONTHSS = ($lci > $everymonth [$lcj][0])? ($lci-1): $LCI; Number of months after the leap month-1
  412. if ($lci = = $everymonth [$LCJ][0] + 1) {//This month happens to be leap months
  414. $monthssshow = $mmonth [0]. $mmonth [$MONTHSS]; Add a leap word in front
  416. $runyue = 1;
  418. }
  420. else {
  422. $monthssshow = $mmonth [$MONTHSS];
  424. }
  426. }
  428. else {
  430. $MONTHSS = $lci;
  432. $monthssshow = $mmonth [$MONTHSS];
  434. }
  436. if ($MONTHSS <= && $runyue! = 1) {//only 1 words of month plus ' month ' word
  438. $monthssshow. = $mmonth [13];
  440. }
  442. $results [$i] = $monthssshow;
  444. }
  446. }
  448. return $results;
  450. }
  452. Forgot to add this: Chinese lunar word
  454. $lnlunarcalendar = Array (
  456. ' Tiangan ' = = Array ("Unknown", "a", "B", "C", "Ding", "E", "Self", "Geng", "Xin", "Ren", "decyl"),
  458. ' Dizhi ' = = Array ("Unknown", "Child of the Year (rat)", "Ugly Year (ox)", "Yin Year (Tiger)", "Mao Year (Rabbit)", "Chen Year (Dragon)",
  460. "Years (Snakes)", "Noon (horse)", "Not Years (sheep)", "Dynasty (monkey)", "Unitary year (chicken)", "Xu Year (dog)", "Hai Year (pig)"),
  462. ' Month ' = = Array ("Leap", "positive", "two", "three", "four", "Five", "VI",
  464. "Seven", "eight", "Nine", "Ten", "11", "12", "month"),
  466. ' Day ' = = Array ("Unknown", "The Day", "second day", "Third Day", "four", "Duanwu", "Arrest", "When初七because", "Holidays", "Penggushan", "decade",
  468. "11", "12", "13", "14", "XV", "16", "17", "18", "19", "20",
  470. "21", "22", "23", "24", "25", "26", "27", "28", "29", "30")
  472. );
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