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| <?php
/**
* Find the number of days between today and a date in the future or in the past.
*
* @param int $year
* @param int $month
* @param int $day
* @param int $accuracy
*/
function numberOfDays($year, $month, $day, $accuracy = 0)
{
# Check for valid parameters #
if (!is_int($day) || $day < 1 || $day > 31)
{
printf('Wrong parameter for $day. It must be an integer between 1 and 31.');
exit();
}
if (!is_int($month) || $month < 1 || $month > 12)
{
printf('Wrong parameter for $month. It must be an integer between 1 and 12.');
exit();
}
if (!is_int($year) || $year < 0)
{
printf('Wrong parameter for $year. It must be a positive integer.');
exit();
}
if (!checkdate($month, $day, $year))
{
printf('Invalid date.');
exit();
}
if ($accuracy !== 0 && $accuracy !== 1)
{
printf('Wrong parameter for $accuracy. It must be either 1 or 0.');
exit();
}
$now = time();
$today = date('d-m-Y', $now);
$result = (mktime(0, 0, 0, $month, $day, $year) - $now) / 86400;
if ($accuracy === 1)
{
echo 'The exact number of days between '.$today.' and '.$day.'-'.$month.'-'.$year.' are '.$result;
}
else
{
echo 'The number of days between '.$today.' and '.$day.'-'.$month.'-'.$year.' are '.(int)$result;
}
}
?>
<html>
<head>
</head>
<body>
<?php
echo numberOfDays(2006, 12, 31);
echo '<br>';
echo numberOfDays(2005, 12, 31, 1);
echo '<br>';
echo numberOfDays(2006, 1, 31);
echo '<br>';
echo numberOfDays(2005, 12, 31);
?>
</body>
</html> | |
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