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<?php
// function returns starttime and endtime and event length for drawing into a grid
function drawEventTimes ($start, $end) {
global $gridLength;
ereg ("([0-9]{2})([0-9]{2})", $start, $time);
$sta_h = $time[1];
$sta_min = $time[2];
$sta_min = sprintf("%02d", floor($sta_min / $gridLength) * $gridLength);
if ($sta_min == 60) {
$sta_h = sprintf("%02d", ($sta_h + 1));
$sta_min = "00";
}
ereg ("([0-9]{2})([0-9]{2})", $end, $time);
$end_h = $time[1];
$end_min = $time[2];
$end_min = sprintf("%02d", floor($end_min / $gridLength) * $gridLength);
if ($end_min == 60) {
$end_h = sprintf("%02d", ($end_h + 1));
$end_min = "00";
}
if (($sta_h . $sta_min) == ($end_h . $end_min)) {
$end_min += $gridLength;
if ($end_min == 60) {
$end_h = sprintf("%02d", ($end_h + 1));
$end_min = "00";
}
}
$draw_len = ($end_h * 60 + $end_min) - ($sta_h * 60 + $sta_min);
return array ("draw_start" => ($sta_h . $sta_min), "draw_end" => ($end_h . $end_min), "draw_length" => $draw_len);
}
?>
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