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這篇文章主要介紹php如何準(zhǔn)確計(jì)算復(fù)活節(jié)日期,文中介紹的非常詳細(xì),具有一定的參考價(jià)值,感興趣的小伙伴們一定要看完!
具體如下:
<?PHP function isLeapYear( $nYEAR ) { if((($nYEAR % 4 == 0) AND !($nYEAR % 100 == 0)) AND ($nYEAR % 400 != 0)) { return TRUE; } else { return FALSE; } } function div( $a, $b ){ return( $a - ( $a % $b )) / $b; } function easterSunday( $nYEAR ) { // The function is able to calculate the date //of eastersunday back to the year 325, // but mktime() starts at 1970-01-01! if ( $nYEAR < 1970 ) { $dtEasterSunday = mktime( 1,1,1,1,1,1970 ); } else { $nGZ = ( $nYEAR % 19 ) + 1; $nJHD = div( $nYEAR, 100 ) + 1; $nKSJ = div( 3 * $nJHD, 4 ) - 12; $nKORR = div( 8 * $nJHD + 5, 25 ) - 5; $nSO = div( 5 * $nYEAR, 4 ) - $nKSJ - 10; $nEPAKTE = (( 11 * $nGZ + 20 + $nKORR - $nKSJ ) % 30 ); if (( $nEPAKTE == 25 OR $nGZ == 11 ) AND $nEPAKTE == 24 ) { $nEPAKTE = $nEPAKTE + 1; } $nN = 44 - $nEPAKTE; if( $nN < 21 ) { $nN = $nN + 30; } $nN = $nN + 7 - (( $nSO + $nN ) % 7 ); $nN = $nN + isLeapYear( $nYEAR ); $nN = $nN + 59; $nA = isLeapYear( $nYEAR ); // Month $nNM = $nN; if ( $nNM > ( 59 + $nA )) { $nNM = $nNM + 2 - $nA; } $nNM = $nNM + 91; $nMONTH = div( 20 * $nNM, 611 ) - 2; // Day $nNT = $nN; $nNT = $nN; if ( $nNT > ( 59 + $nA )) { $nNT = $nNT + 2 - $nA; } $nNT = $nNT + 91; $nM = div( 20 * $nNT, 611 ); $nDAY = $nNT - div( 611 * $nM, 20 ); $dtEasterSunday = mktime( 0,0,0,$nMONTH,$nDAY,$nYEAR ); } return $dtEasterSunday; } ?>
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