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<?php
// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
// express a time difference in readable form, e.g. "7 days ago".
// If it's more than 30 days, just show the date
//
function time_diff_str($t1, $t2) {
if (!$t1 || !$t2) return "---";
$diff = $t2 - $t1;
if ($diff<0){
$pre="In ";
$post="";
$diff=-$diff;
} else {
if ($diff > 86400*30) {
return date_str($t1);
}
$pre="";
$post=" ago";
}
$x = "";
if ($diff >= 3600*24) {
$n = (int) ($diff/(3600*24));
if ($n == 1) {
$x .= "1 day ";
} else {
$x .= "$n days ";
}
return $pre.$x.$post;
//$diff -= $n*3600*24;
} elseif ($diff >= 3600) {
$n = (int) ($diff/3600);
if ($n == 1) {
$x .= "1 hour ";
} else {
$x .= $n." hours ";
}
return $pre.$x.$post;
//$diff -= $n*3600;
} elseif ($diff >= 60) {
$n = (int) ($diff/60);
if ($n == 1) {
$x .= "1 minute ";
} else {
$x .= $n." minutes ";
}
return $pre.$x.$post;
} elseif($diff > 1 || $diff==0) {
return $pre."$diff seconds".$post;
} elseif($diff == 1){
return $pre."$diff seconds".$post;
}
}
?>
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