/**
* test next_lottery_date function
*
* @return void
*/
public function testnext_lottery_date()
{
$w0 = mktime(0, 0, 0, 7, 31, 2016);
$w7 = mktime(0, 0, 0, 8, 7, 2016);
$fl = mktime(20, 0, 0, 8, 3, 2016);
$sl = mktime(20, 0, 0, 8, 6, 2016);
$nfl = mktime(20, 0, 0, 8, 10, 2016);
$cases = [];
$expected = [];
$cases[] = $w0;
$expected[] = $fl;
// case 1
$cases[] = $fl - 1;
$expected[] = $fl;
// case 2
$cases[] = $fl;
$expected[] = $sl;
// case 3
$cases[] = $sl - 1;
$expected[] = $sl;
// case 4
$cases[] = $sl;
$expected[] = $nfl;
// case 5
$cases[] = $w7 - 1;
$expected[] = $nfl;
// case 6
$cases[] = $w7;
$expected[] = $nfl;
// case 7
echo "\n";
for ($i = 0; $i < 7; $i++) {
echo "case: " . date("Y-m-d H:i:s", $cases[$i]) . ", result: " . date("Y-m-d H:i:s", getNextLotteryDate($cases[$i])) . " , expected: " . date("Y-m-d H:i:s", $expected[$i]) . "\n";
$this->assertEquals($expected[$i], getNextLotteryDate($cases[$i]));
}
return null;
}
<?php
date_default_timezone_set('Europe/Dublin');
$unix_time = time();
echo "unix time:" . $unix_time . "\n";
echo "w day(0 for sunday,6 for sat.):" . date('w', $unix_time) . "\n";
echo "current date:" . date('Y-m-d H:i:s w', $unix_time) . "\n";
echo getNextLotteryDate($unix_time);
// @param int $cur , current unix time
// @return int , next lottery date
function getNextLotteryDate($cur)
{
/*
$dtz = new DateTimeZone('Europe/Dublin');
$time_in_dublin = new DateTime('now', $dtz);
$tz_offset = $dtz->getOffset( $time_in_dublin );
$week_sec = 7*86400;
$diff_to_sat20 = 2*86400 + 20*3600;
$bsat20 = ((int)(($cur - $diff_to_sat20 +$tz_offset)/($week_sec)))*($week_sec) + $diff_to_sat20 - $tz_offset + 4*86400;
if ($bsat20 <=$cur) {
return $bsat20 + 3*86400;
}
return $bsat20;
*/
$today = mktime(0, 0, 0, date("m", $cur), date("d", $cur), date("Y", $cur));
$wday = date('w', $cur);
$wstart = $today - $wday * 86400;
// this week lottery dates