当前位置: 首页 > 图文教程 > 网络编程 > PHP > PHP 日期加减的类,很不错

PHP
php 远程图片保存到本地的函数类
php 破解防盗链图片函数
快速开发一个PHP扩展图文教程
PHP6 mysql连接方式说明
php 进度条实现代码
php discuz 主题表和回帖表的设计
php 无限级缓存的类的扩展
php adodb操作mysql数据库
php FPDF类库应用实现代码
sourcesafe管理phpproj文件的补充说明(downmoon)
AspNetAjaxPager,Asp.Net通用无刷新Ajax分页控件,支持多样式多数据绑定
php一句话cmdshell新型 (非一句话木马)
php 木马的分析(加密破解)
PHP 数组入门教程小结
php 方便水印和缩略图的图形类
PHP加速 eAccelerator配置和使用指南
PHP 组件化编程技巧
IIS6+PHP5+MySQL5+Zend Optimizer+phpMyAdmin安装配置图文教程 2009年
两个强悍的php 图像处理类1
PHP 数据库 常见问题小结

PHP 日期加减的类,很不错


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-10-12   浏览: 86 ::
收藏到网摘: n/a

PHP中对日期操作的函数功能强大,下面的代码是PHP对日期加减的类,很不错,有需要的朋友可以用一下。 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 ;
}
}
?>