这篇文章主要介绍了php准确计算复活节日期的方法,涉及php操作日期的技巧,非常具有实用价值,需要的朋友可以参考下，本文实例讲述了php准确计算复活节日期的方法，分享给大家供大家参考，具体如下：

1. <?PHP
2. function isLeapYear( $nYEAR ) {
3. if((($nYEAR % 4 == 0) AND !($nYEAR % 100 == 0)) AND ($nYEAR % 400 != 0))
4. {
5. return TRUE;
6. } else {
7. return FALSE;
8. }
9. }
10. function div( $a, $b ){
11. return( $a - ( $a % $b )) / $b;
12. }
13. function easterSunday( $nYEAR ) {
14. // The function is able to calculate the date
15. //of eastersunday back to the year 325,
16. // but mktime() starts at 1970-01-01!
17. if ( $nYEAR < 1970 ) {
18. $dtEasterSunday = mktime( 1,1,1,1,1,1970 );
19. } else {
20. $nGZ = ( $nYEAR % 19 ) + 1;
21. $nJHD = div( $nYEAR, 100 ) + 1;
22. $nKSJ = div( 3 * $nJHD, 4 ) - 12;
23. $nKORR = div( 8 * $nJHD + 5, 25 ) - 5;
24. $nSO = div( 5 * $nYEAR, 4 ) - $nKSJ - 10;
25. $nEPAKTE = (( 11 * $nGZ + 20 + $nKORR - $nKSJ ) % 30 );
26. if (( $nEPAKTE == 25 OR $nGZ == 11 ) AND $nEPAKTE == 24 ) {
27. $nEPAKTE = $nEPAKTE + 1;
28. }
29. $nN = 44 - $nEPAKTE;
30. if( $nN < 21 ) {
31. $nN = $nN + 30;
32. }
33. $nN = $nN + 7 - (( $nSO + $nN ) % 7 );
34. $nN = $nN + isLeapYear( $nYEAR );
35. $nN = $nN + 59;
36. $nA = isLeapYear( $nYEAR );
37. // Month
38. $nNM = $nN;
39. if ( $nNM > ( 59 + $nA )) {
40. $nNM = $nNM + 2 - $nA;
41. }
42. $nNM = $nNM + 91;
43. $nMONTH = div( 20 * $nNM, 611 ) - 2;
44. // Day
45. $nNT = $nN;
46. $nNT = $nN;
47. if ( $nNT > ( 59 + $nA )) {
48. $nNT = $nNT + 2 - $nA;
49. }
50. $nNT = $nNT + 91;
51. $nM = div( 20 * $nNT, 611 );
52. $nDAY = $nNT - div( 611 * $nM, 20 );
53. $dtEasterSunday = mktime( 0,0,0,$nMONTH,$nDAY,$nYEAR );
54. }
55. return $dtEasterSunday;
56. }
57. ?>