PHP实例说明编写PHP代码的5个好习惯

<?php

function getNBDay($d)
{
    switch($d) {
        case 5:
        case 6:
        case 7:
            return 1;
        default:
            return ($d + 1);
    }
}

$day = 5;

$nextDay = getNBDay($day);

echo ("Next day is: " . $nextDay . "\n");

?>

<?php

define (''MONDAY'', 1);
define (''TUESDAY'', 2);
define (''WEDNESDAY'', 3);
define (''THURSDAY'', 4);
define (''FRIDAY'', 5);
define (''SATURDAY'', 6);
define (''SUNDAY'', 7);

/*
 *
 * @param $dayOfWeek
 * @return int Day of week, with 1 being Monday and so on.
 */
function findNextBusinessDay($dayOfWeek)
{
    $nextBusinessDay = $dayOfWeek;

    switch($dayOfWeek) {
        case FRIDAY:
        case SATURDAY:
        case SUNDAY:
            $nextBusinessDay = MONDAY;
            break;
        default:
            $nextBusinessDay += 1;
            break;
    }

    return $nextBusinessDay;
}

$day = FRIDAY;

$nextBusDay = findNextBusinessDay($day);

echo ("Next day is:" . $nextBusDay . "\n");

?>