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php sample source codes
A simple calculator. Must be in calculator.php <!-- A simplu calculator by Serban Nicolae @2004 orfeu@as.ro --> <html> <head> <title>A simple calculator !</title> </head> <body> <h3> A simple calculator </h3> <form method="post" action="calculator.php"> <input type="text" size="6" name="op1" value="<? echo $op1 ?>" > <select name="o"> <option value="1">+</option> <option value="2">-</option> <option value="3"></option> <option value="4">/</option> </select> <input type="text" size="6" name="op2" value="<? echo $op2 ?>" > <br> <input name="text" type="text" name="op3" value=" <?php switch ($o) { case 1: $op3=$op1+$op2; break; case 2: $op3=$op1-$op2; break; case 3: $op3=$op1$op2; break; case 4: $op3=$op1/$op2; break; } echo $op3; ?>" disabled> <input type="submit" value="=" > </form> </body> </html>
Calculate anyone's age without worrying about the Unix Epoch <? /* I wrote this snippet to combat the limitations of the mktime function due to the beginning of the Unix Epoch. */ function calculate_age($birth_day, $birth_month, $birth_year) { $datestamp = date("d.m.Y", mktime()); $t_arr = explode("." , $datestamp); $current_day = $t_arr[0]; $current_month = $t_arr[1]; $current_year = $t_arr[2]; $year_dif = $current_year - $birth_year; if(($birth_month > $current_month) \|\| ($birth_month == $current_month && $current_day < $birth_day)) $age = $year_dif - 1; else $age = $year_dif; return $age; }
Returns age in array containing years, months, days, <?php function days_in_month($month, $year) { $lastday = mktime (0,0,0,($month+1),0,$year); $days = strftime("%d", $lastday); return $days; } ?> <?php function age_calculate($date_from, $date_to) { define("A_DAY", 86400); // One day in seconds define("A_WEEK", 604800); // One week in seconds $age['years'] = $date_to['year'] - $date_from['year']; $age['monthsTotal'] = ( $date_to['mon'] + (12$date_to['year']) ) - ( $date_from['mon'] + (12$date_from['year']) ); // month and monthday is smaller than birth if ( ($date_to['mon'] <= $date_from['mon']) && ($date_to['mday'] <= $date_from['mday']) ) { $age['years'] -= 1; $age['monthsTotal'] -= 1; } $age['months'] = $age['monthsTotal'] - ( $age['years'] * 12 ); $age['daysExcact'] = ($date_to[0] - $date_from[0]) / A_DAY; $age['days'] = floor( ($date_to[0] - $date_from[0]) / A_DAY ); $age['weeksExcact'] = ($date_to[0] - $date_from[0]) / A_WEEK; $age['weeks'] = floor( ($date_to[0] - $date_from[0]) / A_WEEK ); if ( $date_to['mday'] < $date_from['mday'] ) { $age['modMonthDays'] = days_in_month($date_to['mon']-1,$date_to['year']) - ($date_from['mday'] - $date_to['mday']); } else { $age['modMonthDays'] = $date_to['mday'] - $date_from['mday']; } return $age; } ?>
I had to come up with a way to generate an average call time. Simple enough I suppose. Hope it's usefull to someone. <? //===============================\\ // Author:Patrick Loven \\ // Name: Avg Time Calculator \\ // Date: 8/31/01 \\ // Site: www.lovenresources.com \\ //===============================\\ function sub_time($time,$intv){ //$time = the total amount of time to handle. //$intv = the number of which you want to divide by if($time >= $intv){ $time_div = ($time / $intv); $time_exp = explode(".", $time_div); for($n=0;$n<count($time_exp);$n++){ $time_exp_pre = ("$time_exp[0]"); } $time_exp_pre_rem = ($time - ($time_exp_pre * $intv)); if($time_exp_pre_rem == 0){ $time_exp_pre_rem = ("cleaned"); }else{ $time_exp_pre_rem = ("$time_exp_pre_rem"); } $time = ("$time_exp_pre.$time_exp_pre_rem"); //echo("$time<br>\n"); }else{ //echo ("$time<br>\n"); } return array($time_exp_pre,$time_exp_pre_rem); } function calc_avg_time($array, $end){ //$array = the time you want to divide up "." period deliminated //$end = the number of which you want to divide by i.e. the number of time in your array for($i=0;$i<count($array);$i++){ $indv_array = explode(".", $array[$i]); for($g=0;$g<count($indv_array);$g++){ $min = ("$indv_array[0]"); $sec = ("$indv_array[1]"); } $new_min[] = $min++; $new_sec[] = $sec++; for($q=0;$q<count($new_min);$q++){ $new_min_ms = ($new_min[$q] * 60); } $new_min_sec[] = $new_min_ms++; } $all_sec_min = array_sum($new_min_sec); $all_sec_sec = array_sum($new_sec); $all_time = ($all_sec_min + $all_sec_sec); $avg = round($all_time / $end, 0); //echo("$all_sec_min : all minuts<br>\n"); //echo("$all_sec_sec : all seconds<br>\n"); //print_r($new_min_sec); //print_r($new_sec); return array($avg,$all_time); } ?>
This calculates the moonphases in a year. //Returns an array with all the phases of the moon for a whole year function CalculateMoonPhases( $Y ) { //Converted from Basic by Roger W. Sinnot, Sky & Telescope, March 1985. //Converted from javascript by Are Pedersen 2002 //Javascript found at http://www.stellafane.com/moon_phase/moon_phase.htm $R1 = 3.14159265 / 180; $U = false; $s = ""; // Formatted Output String $K0 = intval(($Y-1900)12.3685); $T = ($Y-1899.5) / 100; $T2 = $T$T; $T3 = $T$T$T; $J0 = 2415020 + 29$K0; $F0 = 0.0001178$T2 - 0.000000155$T3; $F0 += (0.75933 + 0.53058868$K0); $F0 -= (0.000837$T + 0.000335$T2); //X In the Line Below, F is not yet initialized, and J is not used before it set in the FOR loop. //X J += intval(F); F -= INT(F); //X Ken Slater, 2002-Feb-19 on advice of Pete Moore of Houston, TX $M0 = $K00.08084821133; $M0 = 360($M0 - intval($M0)) + 359.2242; $M0 -= 0.0000333T2; $M0 -= 0.00000347T3; $M1 = $K00.07171366128; $M1 = 360($M1 - intval($M1)) + 306.0253; $M1 += 0.0107306$T2; $M1 += 0.00001236$T3; $B1 = $K00.08519585128; $B1 = 360($B1 - intval($B1)) + 21.2964; $B1 -= 0.0016528$T2; $B1 -= 0.00000239$T3; for ( $K9=0; $K9 <= 28; $K9=$K9+0.5 ) { $J = $J0 + 14$K9; $F = $F0 + 0.765294$K9; $K = $K9/2; $M5 = ($M0 + $K29.10535608)$R1; $M6 = ($M1 + $K385.81691806)$R1; $B6 = ($B1 + $K390.67050646)$R1; $F -= 0.4068sin($M6); $F += (0.1734 - 0.000393$T)sin($M5); $F += 0.0161sin(2$M6); $F += 0.0104sin(2$B6); $F -= 0.0074sin($M5 - $M6); $F -= 0.0051sin($M5 + $M6); $F += 0.0021sin(2$M5); $F += 0.0010sin(2*$B6-$M6); $F += 0.5 / 1440; //Adds 1/2 minute for proper rounding to minutes per Sky & Tel article $J += intval($F); $F -= intval($F); //Convert from JD to Calendar Date $julian=$J+round($F); $s = jdtogregorian ($julian); //half K if (($K9-floor($K9))>0){ if (!$U){ //New half $phases[$s]="ny2"; }else{ //Full half $phases[$s]="ne2"; } }else{ //full K if ( !$U ){ $phases[$s]="ny"; }else{ $phases[$s]="ne"; } $U = !$U; } } // Next return $phases; } //End MoonPhase function GetMoonPhase($timestamp){ static $moon_phases; if (count($moon_phases)==0) $moon_phases=CalculateMoonPhases(date("Y",$timestamp)); $day=date("n/j/Y",$timestamp); return $moon_phases[$day]; }
This function will take the date of birth in a time format (from mktime() function) and convert it into age in years, months, and days. function get_Age($DOB){ $dayinseconds = 24 * 60 * 60; $dayinYear = 0.00273972602739726; $dif = time() - $DOB; $age_in_days = $dif/$dayinseconds; $flt_year = $age_in_days * $dayinYear; $year= floor($flt_year); $flt_month = ($flt_year - $year) * 12; $month = floor($flt_month); $flt_day = ($flt_month - $month) * 30.58; $day = floor($flt_day); return "$year yrs, $month mnths and $day days"; }
Date_Calc - a class for manipulating and comparing Calendar dates, as well as formulating arrays of dates for traditional calendar display. Visit homepage: http://www.phpinsider.com/php/code/Date_Calc/
Returns age of person by the person's birth date. <?php /************************************************** * * int getAgeByDate(int $mm, int $dd, int $yyyy) * ************************************************** * * Returns age of person by the person's birth date * ************************************************** * * Parameters: * $mm - Month of birth * $dd - Day of birth * $yyyy - Year of birth * ************************************************** * * Return value * Age of person * ************************************************** * * Author: Matthew R. Villa <matt@1-percent.com> * Last modified: 10.01.2000 * * Copyright (c) 2000 1-Percent.com * */ function getAgeByDate($iMonth, $iDay, $iYear) { $iTimeStamp = (mktime() - 86400) - mktime(0, 0, 0, $iMonth, $iDay, $iYear); $iDays = $iTimeStamp / 86400; $iYears = floor($iDays / 365.25); return $iYears; } ?>
Calculates number of years since input date. function get_age($date_of_birth) { list ($year, $month, $day) = explode('-', $date_of_birth); $age = date('Y') - $year; if (date('m') < $month) $age--; elseif (date('d') < $day) $age--; return $age; }
This is a function which I find usefull when I need two timestamps corresponding to the First and Last days of a specified month. Especially usefull when you have dates stored in a database (as timestamps) and you need to SELECT all records BETWEEN two dates. /BEGIN FUNCTION/ /Returns an array with two timestamps, one for the start day of the month and one for the end day. I expanded the month_end array's creation a little bit to make it easier to understand. I'm sure this has been done elsewhere but I couldn't find it when I looked./ function get_month_stamp($month, $year){ //Set month information $month_end = array( 1 => 31, 2 => 28, 3 => 31, 4 => 30, 5 => 31, 6 => 30, 7 => 31, 8 => 31, 9 => 30, 10 => 31, 11 => 30, 12 => 31 ); //Select end day of month to work with $end_day = $month_end[$month]; //Make time stamps $start_stamp = mktime(0, 0, 0, $month, 1, $year); $end_stamp = mktime(23, 59, 59, $month, $end_day, $year); //Make array for return $month_array = array('start'=>$start_stamp, 'end'=>$end_stamp); Return $month_array; } /END FUNCTION/
Simple Birthdate-Age function. Given three parameters (month, day, year), it will return a correct age as an integer, doesn't rely on Timestamp. <br><br>You can give it another three parameters as the date to compare it to, i.e. it will return the age at a given date. Presumes current date. <br><br>For sanity if given two-digit years presumes date was in 20th century. Hope you find it useful. Not exactly rocket science. function getAgeByDate ($iMonth, $iDay, $iYear, $nMonth=0, $nDay=0, $nYear=0) { // simple mm/dd/yy(yy) to age conversion. // Copyright (C)2001 Servability Ltd. Beerware!! If (!$nMonth) $nMonth = date("m"); If (!$nDay) $nDay = date("d"); If (!$nYear) $nYear = date("Y"); If ($iYear < 100) { $iYear = 1900 + $iYear; } $baseyear = $nYear - $iYear - 1; If ($iMonth < $nMonth OR ($iMonth == $nMonth AND $iDay <= $nDay)) { // had birthday $baseyear++; } return $baseyear; }
This code will give you the sunrise and sunset times for any latutude and longitude in the world. You just need to supply the latitude, longitude and difference from GMT. <html><body bgcolor=white><center><br><b>Sunrise Sunset</b><br><br> <? # This code will give you the sunrise and sunset times for any # latutude and longitude in the world. You just need to supply # the latitude, longitude and difference from GMT. # # for results in areas not using Daylight Savings Time, delete all # references to the is_daylight_time() function # # send the variables $latitude, $longitude and $timezone # This script includes is_daylight_time() function from Steve Edberg # and perl code translated from the perl module Astro-SunTime-0.01 # PHP code mattf@mail.com - please use this code in any way you wish # and if you want to, let me know how you are using it. if (!$latitude) {$latitude = 38.74274;} #if not set use test variable if (!$longitude) {$longitude = -90.560143;} #if not set use test variable if (!$timezone) {$timezone = -6;} #if not set use test variable $yday = date(z); $mon = date(n); $mday = date(j); $year = date(Y); function is_daylight_time($time) { list($dom, $dow, $month, $hour, $min) = explode(":", date("d:w:m:H:i", $time)); if ($month > 4 && $month < 10) { $retval = 1; # May thru September } elseif ($month == 4 && $dom > 7) { $retval = 1; # After first week in April } elseif ($month == 4 && $dom <= 7 && $dow == 0 && $hour >= 2) { $retval = 1; # After 2am on first Sunday ($dow=0) in April } elseif ($month == 4 && $dom <= 7 && $dow != 0 && ($dom-$dow > 0)) { $retval = 1; # After Sunday of first week in April } elseif ($month == 10 && $dom < 25) { $retval = 1; # Before last week of October } elseif ($month == 10 && $dom >= 25 && $dow == 0 && $hour < 2) { $retval = 1; # Before 2am on last Sunday in October } elseif ($month == 10 && $dom >= 25 && $dow != 0 && ($dom-24-$dow < 1) ) { $retval = 1; # Before Sunday of last week in October } else { $retval = 0; } return($retval); } $DST=is_daylight_time(date(U)); if ($DST) {$timezone = ($timezone + 1);} if ($timezone == "13") {$timezone = "-11";} $A = 1.5708; $B = 3.14159; $C = 4.71239; $D = 6.28319; $E = 0.0174533 * $latitude; $F = 0.0174533 * $longitude; $G = 0.261799 * $timezone; # For astronomical twilight, use R = -.309017 # For nautical twilight, use R = -.207912 # For civil twilight, use R = -.104528 # For sunrise or sunset, use R = -.0145439 $R = -.0145439; for ($i = 0; $i < 2; $i++) { if (!$i) {$J = $A; $type = "rise";} # calculate sunrise else {$J = $C; $type = "set"; } # calculate sunset $K = $yday + (($J - $F) / $D); $L = ($K * .017202) - .0574039; # Solar Mean Anomoly $M = $L + .0334405 * sin($L); # Solar True Longitude $M += 4.93289 + (3.49066E-04) * sin(2 * $L); # Quadrant Determination if ($D == 0) {echo "Trying to normalize with zero offset..."; exit;} while ($M < 0) {$M = ($M + $D);} while ($M >= $D) {$M = ($M - $D);} if (($M / $A) - intval($M / $A) == 0) {$M += 4.84814E-06;} $P = sin($M) / cos($M); # Solar Right Ascension $P = atan2(.91746 * $P, 1); # Quadrant Adjustment if ($M > $C) {$P += $D;} else {if ($M > $A) {$P += $B;} } $Q = .39782 * sin($M); # Solar Declination $Q = $Q / sqrt(-$Q * $Q + 1); # This is how the original author wrote it! $Q = atan2($Q, 1); $S = $R - (sin($Q) * sin($E)); $S = $S / (cos($Q) * cos($E)); if (abs($S) > 1) {echo 'none';} # Null phenomenon $S = $S / sqrt(-$S * $S + 1); $S = $A - atan2($S, 1); if ($type == 'rise') {$S = $D - $S ;} $T = $S + $P - 0.0172028 * $K - 1.73364; # Local apparent time $U = $T - $F; # Universal timer $V = $U + $G; # Wall clock time # Quadrant Determination if ($D == 0) {echo "Trying to normalize with zero offset..."; exit;} while ($V < 0) {$V = ($V + $D);} while ($V >= $D) {$V = ($V - $D);} $V = $V * 3.81972; $hour = intval($V); $min = intval((($V - $hour) * 60) + 0.5); echo "sun$type is at: "; echo date( "g:i A", mktime($hour,$min,0,$mon,$mday,$year) ); echo "<br>"; } ?>
Tells you how long there is until a given time function time_until($event, $day, $month, $year = "unset", $min = 0, $hour = 0, $sec = 0) { /* prints the time until a given date. Can calculate to any time of day, * but defaults to midnight * by Rob Fisher 8/3/2000 / / If we've not been given a year, assume it's this year / if ($year == "unset") $year = date("Y"); $left = mktime($sec, $min, $hour, $month, $day, $year) - mktime(); // what if the event has already happened? Let's assume it's an annual // event (I wrote this function to calculate the time until Christmas // after all) and work out how long until it happens next year. This may // or may not be suitable behaviour for your application if (0 > $left) $left = mktime($sec, $min, $hour, $month, $day, $year + 1) - mktime(); // if we've hit the event bang on the nose, just say so if ($left == 0) return "it's $event"; $time = array( "year" => 31449600, "week" => 604800, "day" => 86400, "hour" => 3600, "minute" => 60, "second" => 1); $ret_str = "There "; while(list($span, $scale) = each($time)) { $chunk = floor($left / $scale); $left = $left % $scale; if ($chunk != 0): $p1 = ($chunk == 1) ? "is" : "are"; if ($chunk > 1) $span = "${span}s"; $sep = ($left == 0) ? " and " : ", "; $ret_str .= ((!ereg("[0-9]", "$ret_str")) ? $p1 : $sep) . " $chunk $span"; endif; } return $ret_str . " until ${event}."; } / As an example, how long until Christmas? */ echo time_until("Christmas", 25, 12);
The purpose of this script is to be able to return the time span between any two specific moments in time AFTER the Unix Epoch (January 1 1970) in a human-readable format. You could, for example, determine your age, how long you have been married, or the last time you... you know. ;) The class, "timespan", will produce variables within the class respectively titled years, months, weeks, days, hours, minutes, seconds. <?php # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # B00zy's timespan script v1.2 # # # # timespan -- get the exact time span between any two moments in time. # # # # Description: # # # # class timespan, function calc ( int timestamp1, int timestamp2) # # # # The purpose of this script is to be able to return the time span # # between any two specific moments in time AFTER the Unix Epoch # # (January 1 1970) in a human-readable format. You could, for example, # # determine your age, how long you have been married, or the last time # # you... you know. ;) # # # # The class, "timespan", will produce variables within the class # # respectively titled years, months, weeks, days, hours, minutes, # # seconds. # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # Example 1. B00zy's age. # # # # $t = new timespan( time(), mktime(0,13,0,8,28,1982)); # # print "B00zy is $t->years years, $t->months months, ". # # "$t->days days, $t->hours hours, $t->minutes minutes, ". # # "and $t->seconds seconds old.\n"; # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # define('day', 606024 ); define('hour', 6060 ); define('minute', 60 ); class timespan { var $years; var $months; var $weeks; var $days; var $hours; var $minutes; var $seconds; function leap($time) { if (date('L',$time) and (date('z',$time) > 58)) return (double)(606024366); else { $de = getdate($time); $mkt = mktime(0,0,0,$de['mon'],$de['mday'],($de['year'] - 1)); if ((date('z',$time) <= 58) and date('L',$mkt)) return (double)(606024366); else return (double)(606024365); } } function readable() { $values = array('years','months','weeks','days','hours','minutes','seconds'); foreach ($values as $k => $v) if ($this->{$v}) $fmt .= ( $fmt? ', ': '') . $this->{$v} . " $v"; return $fmt . ( $fmt? '.': '') ; } function timespan($after,$before) { # Set variables to zero, instead of null. $this->years = 0; $this->months = 0; $this->weeks = 0; $this->days = 0; $this->hours = 0; $this->minutes = 0; $this->seconds = 0; $duration = $after - $before; # 1. Number of years $dec = $after; $year = $year; $year = $this->leap($dec); while (floor($duration / $year) >= 1) { print date("F j, Y\n",$dec); $this->years += 1; $duration -= (int)$year; $dec -= (int)$year; $year = $this->leap($dec); } # 2. Number of months $dec = $after; $m = date('n',$after); $d = date('j',$after); while (($duration - day) >= 0) { $duration -= day; $dec -= day; $this->days += 1; if ( (date('n',$dec) != $m) and (date('j',$dec) <= $d) ) { $m = date('n',$dec); $d = date('j',$dec); $this->months += 1; $this->days = 0; } } # 3. Number of weeks. $this->weeks = floor($this->days / 7); $this->days %= 7; # 4. Number of hours, minutes, and seconds. $this->hours = floor($duration / (6060)); $duration %= (6060); $this->minutes = floor($duration / 60); $duration %= 60; $this->seconds = $duration; } } ?>
Returns UK Tax week (according to UK Inland Revenue rules) when passed a date. Not exciting, but useful! // PHP Function to calculate UK Inland Revenue tax week from passed date // Parameters: // $dd - day of month, 0-31 // $mm - month of year, 0-12 // $yy - Year (4 digits better!) // // I have not implemented error checking on parameters - its down to you to make sure params are correct! // // Warranties - NONE, (but its not rocket science!) // // Copyright: D B Shields, Broadowler Systems Ltd, 2003 // // Contact: david@broadowler.co.uk // // Licence : Free to use, but dont sell it! // function taxweek($dd, $mm, $yy){ // Inland Revenue defined Week 1 as 6-12 April inclusive, Week 2 13-19 inclusive etc. // NB Day of week has NO bearing on week number - tax week may start on ANY day // first, stamp the supplied date $now=mktime(0,0,0,$mm,$dd,$yy); // next, see where april first is for supplied year $apryy=$yy; $apr6=mktime(0,0,0,4,6,$apryy); if ($apr6>$now){ // we are in jan-apr, so apr1 needs to be prev year $apryy--; } $apr6=mktime(0,0,0,4,6,$apryy); // now how many weeks have elapsed between w1start and now ? $elapsed=($now-$apr6)/86400; $w=sprintf("%0.2f",$elapsed/7); $wf=floor($w)+1; // not cel, as breaks boundaries return $wf; }
A Set of Functions that allow you to figure out what week a certain day of the month falls on. So if a date is on the 1st week of the month, 2nd week, etc. <? ######################################################### ## This set of functions helps you determine which ## ## week a certain date falls on within a given month. ## ## ## ## Written by Brian Budnick (Salt Lake City, UT) ## ## ## ## This program can be modified and used however you ## ## feel like using it! :) Enjoy. ## ## email: brian@cs1.com 8/15/2000 ## ######################################################### /* * function: getlast($myarray) * returns: last day of an array / function getlast($myarray) { $mycount = count($myarray); $touse = $mycount - 1; return $myarray[$touse]; } / * function: getweek(day_of_week) * returns array of first week dates / function getweek($wk) { if ($wk == 0) { $fd = 1; $ld = 7; } if ($wk == 1) { $fd = 1; $ld = 6; } if ($wk == 2) { $fd = 1; $ld = 5; } if ($wk == 3) { $fd = 1; $ld = 4; } if ($wk == 4) { $fd = 1; $ld = 3; } if ($wk == 5) { $fd = 1; $ld = 2; } if ($wk == 6) { $fd = 1; $ld = 1; } $ldr = $ld + 1; for ($i=$fd;$i<$ldr;$i++) { $fstweek[] = $i; } return $fstweek; } / * function: getothers(last_day_of_week_previous) * returns: array of next week / function getothers($lastday) { $frst = $lastday + 1; $last = $frst + 7; for ($i=$frst;$i<$last;$i++) { $week[] = $i; } return $week; } / * function: whatweekisit() * returns: which week of current month it is (1..2..3..4) */ function whatweekisit() { $today = date( "Y-m-d",time()); $today_exp = explode( "-",$today); $today_date = $today_exp[2]; $fdofmonth = mktime(0,0,0,$today_exp[1],1,$today_exp[0]); $whichday = date( "w",$fdofmonth); $getfstwk = getweek($whichday); $frstlast = getlast($getfstwk); $getsndwk = getothers($frstlast); $scndlast = getlast($getsndwk); $gettrdwk = getothers($scndlast); $thrdlast = getlast($gettrdwk); $getfthwk = getothers($thrdlast); $frthlast = getlast($getfthwk); $getfifwk = getothers($frthlast); if (in_array($today_date,$getfstwk)) { return 1; } if (in_array($today_date,$getsndwk)) { return 2; } if (in_array($today_date,$gettrdwk)) { return 3; } if (in_array($today_date,$getfthwk)) { return 4; } if (in_array($today_date,$getfifwk)) { return 5; } } ?>
simple function to calculate eastersunday. input is the year you wish calculate. output is the day of eastersunday and the eastermonth. <? function eastern($year){ $m = ((($year-$year%100)/100)-(($year-$year%400)/400)-(($year-$year%300)/300)+15)%30; $n = ((($year-$year%100)/100)-(($year-$year%400)/400)+4)%7; $a = $year%19; $b = $year%4; $c = $year%7; $d = (19$a+$m)%30; $e = (2$b+4$c+6$d+$n)%7; $eastersunday = 22+$d+$e; $eastermonth = 3; if ($eastersunday > 31){ $eastersunday -= 31; $eastermonth = 4; } return substr(eastersunday, eastermonth); } ?>

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