php计算给定时间之前的函数用法实例_PHP教程

程序员文章站 2022-04-27 15:42:36

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php计算给定时间之前的函数用法实例

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

function prettyDate($date){

$time = strtotime($date);

$now = time();

$ago = $now - $time;

if($ago

$when = round($ago);

$s = ($when == 1)?"second":"seconds";

return "$when $s ago";

}elseif($ago

$when = round($ago / 60);

$m = ($when == 1)?"minute":"minutes";

return "$when $m ago";

}elseif($ago >= 3600 && $ago

$when = round($ago / 60 / 60);

$h = ($when == 1)?"hour":"hours";

return "$when $h ago";

}elseif($ago >= 86400 && $ago

$when = round($ago / 60 / 60 / 24);

$d = ($when == 1)?"day":"days";

return "$when $d ago";

}elseif($ago >= 2629743.83 && $ago

$when = round($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")."
";

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php计算给定时间之前的函数用法实例_PHP教程