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| <?php
/**
* This function will convert an input day to various formats (eg Monday, Mon, Mo, M, 1).
* It accepts a string or an array as input and returns a string or an array. Be careful
* when using an array with non-unique elements.
*
* @param mixed $day --> The day to be converted; a string or and array.
* @param int $format --> An integer specifying the format of the result (0->7, 1->S, 2->Su, 3->Sun, 4->Sunday).
* @return mixed --> string or array
*/
function convertDay($day, $format)
{
# Check for valid parameters #
if ($format !== 0 && $format !== 1 && $format !== 2 && $format !== 3 && $format !== 4)
{
printf('Wrong parameter for $format. This must be 0, 1, 2, 3 or 4.');
exit();
}
$monday = array(1, 'm', 'mo', 'mon', 'monday');
$tuesday = array(2, 't', 'tu', 'tue', 'tuesday');
$wednesday = array(3, 'w', 'we', 'wed', 'wednesday');
$thursday = array(4, 't', 'th', 'thu', 'thursday');
$friday = array(5, 'f', 'fr', 'fri', 'friday');
$saturday = array(6, 's', 'sa', 'sat', 'saturday');
$sunday = array(7, 's', 'su', 'sun', 'sunday');
$daysOfTheWeek = array($monday, $tuesday, $wednesday, $thursday, $friday, $saturday, $sunday);
if (!is_array($day))
{
$day = array(strtolower($day));
}
$inputSize = count($day);
for ($i = 0; $i < 7; $i++)
{
$match = array_intersect($day, $daysOfTheWeek[$i]);
if (!empty($match))
{
if ($inputSize > 1)
{
$result[] = ucfirst($daysOfTheWeek[$i][$format]);
}
else
{
$result = ucfirst($daysOfTheWeek[$i][$format]);
return $result;
}
}
else
{
if ($i === 6)
{
printf('Wrong parameter for $day.');
exit();
}
}
}
return $result;
}
?> | |
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