note 78677 deleted from function.time by aidan
| From: | aidan@php.net | Date: | Wed, 15 Apr 2009 16:05:05 +0000 |
| Subject: | note 78677 deleted from function.time by aidan | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-153331@lists.php.net to get a copy of this message | ||
Note Submitter: stack-phpnotes at landstander dot com
----
My modification and enhancements to the timeDiff() function last updated by sean sullivan. The
rewrite was done to add a couple new optional parameters but I also got a bump in performance. On a
completely personal preference level I changed the month and year second values with ones I got from
Google searches.
Written and tested with 5.2.0.
Options include
to = time(); date to compute the range to
parts = 1; number of parts to display max
precision = 'second'; lowest part to compute to
distance = TRUE; include the 'ago' or 'away' bit
separator = ', '; separates the parts
<?php
function timeDiff($time, $opt = array()) {
// The default values
$defOptions = array(
'to' => 0,
'parts' => 1,
'precision' => 'second',
'distance' => TRUE,
'separator' => ', '
);
$opt = array_merge($defOptions, $opt);
// Default to current time if no to point is given
(!$opt['to']) && ($opt['to'] = time());
// Init an empty string
$str = '';
// To or From computation
$diff = ($opt['to'] > $time) ? $opt['to']-$time :
$time-$opt['to'];
// An array of label => periods of seconds;
$periods = array(
'decade' => 315569260,
'year' => 31556926,
'month' => 2629744,
'week' => 604800,
'day' => 86400,
'hour' => 3600,
'minute' => 60,
'second' => 1
);
// Round to precision
if ($opt['precision'] != 'second')
$diff = round(($diff/$periods[$opt['precision']])) *
$periods[$opt['precision']];
// Report the value is 'less than 1 ' precision period away
(0 == $diff) && ($str = 'less than 1 '.$opt['precision']);
// Loop over each period
foreach ($periods as $label => $value) {
// Stitch together the time difference string
(($x=floor($diff/$value))&&$opt['parts']--) &&
$str.=($str?$opt['separator']:'').($x.'
'.$label.($x>1?'s':''));
// Stop processing if no more parts are going to be reported.
if ($opt['parts'] == 0 || $label == $opt['precision']) break;
// Get ready for the next pass
$diff -= $x*$value;
}
$opt['distance'] && $str.=($str&&$opt['to']>$time)?'
ago':' away';
return $str;
}
?>
Usage:
$span = timeDiff($when);
or
$span = timeDiff($when, array('parts' => 3));