Number of week days per year

<?php
$date0 = new DateTime('01-01-2011');
$week_days = array();
for ($n = 0; $n < 365; $n++) {
    $date = clone $date0;
    $date->modify('+' . $n . ' days');
    $week_day = $date->format('N');
    @$week_days[$week_day]++;
    //print_r($date);
}

print_r($week_days);

/*
Array
(
    [6] => 53
    [7] => 52
    [1] => 52
    [2] => 52
    [3] => 52
    [4] => 52
    [5] => 52
)
*/