动态网页制作技术PHP处理时间的实例
/**
* 转换为UNIX时间戳
*/
function gettime($d) {
if(is_numeric($d))
return $d;
else {
if(! is_string($d)) return 0;
if(ereg(":",$d)) {
$buf = split(" ",$d);
$year = split("[-/]",$buf[0]);
$hour = split(":",$buf[1]);
if(eregi("pm",$buf[2]))
$hour[0] = 12;
return mktime($hour[0],$hour[1],$hour[2],$year[1],$year[2],$year[0]);
}else {
$year = split("[-/]",$d);
return mktime(0,0,0,$year[1],$year[2],$year[0]);
}
}
}
/**
*
* DateAdd(interval,number,date)
* 返回已添加指定时间间隔的日期。
* Inetrval为表示要添加的时间间隔字符串表达式,例如分或天
* number为表示要添加的时间间隔的个数的数值表达式
* Date表示日期
*
* Interval(时间间隔字符串表达式)可以是以下任意值:
* yyyy year年
* q Quarter季度
* m Month月
* y Day of year一年的数
* d Day天
* w Weekday一周的天数
* ww Week of year周
* h Hour小时
* n Minute分
* s Second秒
* w、y和d的作用是完全一样的,即在目前的日期上加一天,q加3个月,ww加7天。
*/
function DateAdd($interval, $number, $date) {
$date = gettime($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"];

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