php实现的DateDiff和DateAdd时间函数代码分享_PHP教程

php实现的DateDiff和DateAdd时间函数代码分享

2020-07-22 15:45PHP教程网 PHP教程

这篇文章主要介绍了php实现的DateDiff和DateAdd时间函数代码分享,DateDiff用来计算两个时间的间隔,DateAdd用来对两个时间进行相加,需要的朋友可以参考下

									function DateDiff($part, $begin, $end)

									{

									$diff = strtotime($end) - strtotime($begin);

									switch($part)

									{

									case "y": $retval = bcdiv($diff, (60 * 60 * 24 * 365)); break;

									case "m": $retval = bcdiv($diff, (60 * 60 * 24 * 30)); break;

									case "w": $retval = bcdiv($diff, (60 * 60 * 24 * 7)); break;

									case "d": $retval = bcdiv($diff, (60 * 60 * 24)); break;

									case "h": $retval = bcdiv($diff, (60 * 60)); break;

									case "n": $retval = bcdiv($diff, 60); break;

									case "s": $retval = $diff; break;

									}

									return $retval;

									}

									function DateAdd($part, $number, $date)

									{

									$date_array = getdate(strtotime($date));

									$hor = $date_array["hours"];

									$min = $date_array["minutes"];

									$sec = $date_array["seconds"];

									$mon = $date_array["mon"];

									$day = $date_array["mday"];

									$yar = $date_array["year"];

									switch($part)

									{

									case "y": $yar += $number; break;

									case "q": $mon += ($number * 3); break;

									case "m": $mon += $number; break;

									case "w": $day += ($number * 7); break;

									case "d": $day += $number; break;

									case "h": $hor += $number; break;

									case "n": $min += $number; break;

									case "s": $sec += $number; break;

									}

									return date("Y-m-d H:i:s", mktime($hor, $min, $sec, $mon, $day, $yar));

									}

									Function DateAdd($part, $n, $date)

									{

									switch($part)

									{

									case "y": $val = date("Y-m-d H:i:s", strtotime($date ." +$n year")); break;

									case "m": $val = date("Y-m-d H:i:s", strtotime($date ." +$n month")); break;

									case "w": $val = date("Y-m-d H:i:s", strtotime($date ." +$n week")); break;

									case "d": $val = date("Y-m-d H:i:s", strtotime($date ." +$n day")); break;

									case "h": $val = date("Y-m-d H:i:s", strtotime($date ." +$n hour")); break;

									case "n": $val = date("Y-m-d H:i:s", strtotime($date ." +$n minute")); break;

									case "s": $val = date("Y-m-d H:i:s", strtotime($date ." +$n second")); break;

									}

									return $val;

									}