如何使用这个类呢？请看下面的演示：

复制代码 代码如下:

$temptime = time();

echo strftime ( "%Hh%M %A %d %b" , $temptime );

$date = new DateAccount();

$temptime = $date ->DateAdd( "n" ,50, $temptime );

echo "<p>" ;

echo strftime ( "%Hh%M %A %d %b" , $temptime );

复制代码 代码如下:

$temptime = time();

echo strftime( "%Hh%M %A %d %b",$temptime);

$date = new DateAccount();

$temptime = $date->DateAdd("n" ,50,$temptime);

echo "<p>";

echo strftime( "%Hh%M %A %d %b",$temptime);

如果一切顺利，你可以看到以下结果：

15h41 Saturday 03 Jun

16h31 Saturday 03 Jun

复制代码 代码如下:

$currenttime = time();

echo "Current time: " . strftime ( "%Hh%M %A %d %b" , $currenttime ). "<br>" ;

$date = new DateAccount();

$newtime = $date ->DateAdd ( "n" ,50 , $currenttime );

echo "Time plus 50 minutes: " . strftime ( "%Hh%M %A %d %b" , $newtime ). "<br>" ;

$temptime = $date ->DateDiff ( "n" , $currenttime , $newtime );

echo "Interval between two times: " . $temptime ;

复制代码 代码如下:

$currenttime = time();

echo "Current time: ". strftime("%Hh%M %A %d %b" ,$currenttime)."<br>";

$date = new DateAccount();

$newtime = $date->DateAdd ("n",50 ,$currenttime);

echo "Time plus 50 minutes: ". strftime("%Hh%M %A %d %b" ,$newtime)."<br>";

$temptime = $date->DateDiff ("n",$currenttime ,$newtime);

echo "Interval between two times: ".$temptime;

如果一切顺利，你可以看到以下结果：

Current time: 16h23 Saturday 03 Jun

Time plus 50 minutes: 17h13 Saturday 03 Jun

Interval between two times: 50

复制代码 代码如下:

<?php

class DateAccount{

function __construct(){

}

function DateAdd ( $interval , $number , $date ) {

$date_time_array = getdate ( $date );

$hours = $date_time_array [ "hours" ];

$minutes = $date_time_array [ "minutes" ];

$seconds = $date_time_array [ "seconds" ];

$month = $date_time_array [ "mon" ];

$day = $date_time_array [ "mday" ];

$year = $date_time_array [ "year" ];

switch ( $interval ) {

case "yyyy" : $year += $number ; break ;

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

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

case "y" :

case "d" :

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

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

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

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

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

}

$timestamp = mktime ( $hours , $minutes , $seconds , $month , $day , $year );

return $timestamp ;

}

function DateDiff ( $interval , $date1 , $date2 ) {

$timedifference = $date2 - $date1 ;

switch ( $interval ) {

case "w" : $retval = bcdiv ( $timedifference ,604800); break ;

case "d" : $retval = bcdiv ( $timedifference ,86400); break ;

case "h" : $retval = bcdiv ( $timedifference ,3600); break ;

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

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

}

return $retval ;

}

}

?>

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