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php时间比较函数，返回两个日期相差几秒、几分钟、几小时或几天

WBOYOriginal: 2016-07-25 08:43:202050browse

function DateDiff($date1, $date2, $unit = "") { //时间比较函数，返回两个日期相差几秒、几分钟、几小时或几天
switch ($unit) {
case 's':
$dividend = 1;
break;
case 'i':
$dividend = 60; //oSPHP.COM.CN
break;
case 'h':
$dividend = 3600;
break;
case 'd':
$dividend = 86400;
break; //开源OSPhP.COM.CN
default:
$dividend = 86400;
}
$time1 = strtotime($date1);
$time2 = strtotime($date2);
if ($time1 && $time2)
return (float)($time1 - $time2) / $dividend;
return false;
}

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几天, 几分钟, 几秒

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php时间比较函数，返回两个日期相差几秒、几分钟、几小时或几天

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