Duration.php:
<?php
/**
* A class for making time periods readable.
*
* This class allows for the conversion of an integer
* number of seconds into a readable string.
* For example, '121' into '2 minutes, 1 second'.
*
* If an array is passed to the class, the associative
* keys are used for the names of the time segments.
* For example, array('seconds' => 12, 'minutes' => 1)
* into '1 minute, 12 seconds'.
*
* This class is plural aware. Time segments with values
* other than 1 will have an 's' appended.
* For example, '1 second' not '1 seconds'.
*
* @author Aidan Lister <aidan <at> php <dot> net>
* @version 1.2.1
*/
class Duration
{
/**
* All in one method
*
* @param int|array $duration Array of time segments or a number of seconds
* @return string
*/
function toString ($duration, $periods = null)
{
if (!is_array($duration)) {
$duration = Duration::int2array($duration, $periods);
}
return Duration::array2string($duration);
}
/**
* Return an array of date segments.
*
* @param int $seconds Number of seconds to be parsed
* @return mixed An array containing named segments
*/
function int2array ($seconds, $periods = null)
{
// Define time periods
if (!is_array($periods)) {
$periods = array (
'years' => 31556926,
'months' => 2629743,
'weeks' => 604800,
'days' => 86400,
'hours' => 3600,
'minutes' => 60,
'seconds' => 1
);
}
// Loop
$seconds = (int) $seconds;
foreach ($periods as $period => $value) {
$count = floor($seconds / $value);
if ($count == 0) {
continue;
}
$values[$period] = $count;
$seconds = $seconds % $value;
}
// Return
if (empty($values)) {
$values = null;
}
return $values;
}
/**
* Return a string of time periods.
*
* @package Duration
* @param mixed $duration An array of named segments
* @return string
*/
function array2string ($duration)
{
if (!is_array($duration)) {
return false;
}
foreach ($duration as $key => $value) {
$segment_name = substr($key, 0, -1);
$segment = $value . ' ' . $segment_name;
// Plural
if ($value != 1) {
$segment .= 's';
}
$array[] = $segment;
}
$str = implode(', ', $array);
return $str;
}
}
?>
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