本文实例讲述了PHP计算给定时间之前的函数用法。分享给大家供大家参考。具体如下:
这里给定一个时间,计算这个时间在多久前,比如:2天前,1年前
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PHP
function prettyDate($date){
$time = strtotime($date);
$Now = time();
$ago = $Now - $time;
if($ago < 60){
$when = round($ago);
$s = ($when == 1)?"second":"seconds";
return "$when $s ago";
}elseif($ago < 3600){
$when = round($ago / 60);
$m = ($when == 1)?"minute":"minutes";
return "$when $m ago";
}elseif($ago >= 3600 && $ago < 86400){
$when = round($ago / 60 / 60);
$h = ($when == 1)?"hour":"hours";
return "$when $h ago";
}elseif($ago >= 86400 && $ago < 2629743.83){
$when = round($ago / 60 / 60 / 24);
$d = ($when == 1)?"day":"days";
return "$when $d ago";
}elseif($ago >= 2629743.83 && $ago < 31556926){
$when = round($ago / 60 / 60 / 24 / 30.4375);
$m = ($when == 1)?"month":"months";
return "$when $m ago";
}else{
$when = round($ago / 60 / 60 / 24 / 365);
$y = ($when == 1)?"year":"years";
return "$when $y ago";
}
}
echo prettyDate("2012-07-22 12:23:45")."
"; echo prettyDate("2010-11-12 22:25:45")."
"; echo prettyDate("2012-01-01 01:00:00")."
"; echo prettyDate("2001-05-30 00:00:00")."
";
"; echo prettyDate("2010-11-12 22:25:45")."
"; echo prettyDate("2012-01-01 01:00:00")."
"; echo prettyDate("2001-05-30 00:00:00")."
";
希望本文所述对大家的PHP程序设计有所帮助。
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