Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)归海一刀published in(发表于) 2014/2/17 7:43:02 动态网页制作技术PHP处理时间的实例_[PHP教程]
/*** 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"]; 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;}
/*** DateDiff(interval,date1,date2)* 返回两个日期之间的时间间隔* intervals(时间间隔字符串表达式)可以是以下任意值: * w 周* d 天* h 小时* n 分钟* s 秒*/function DateDiff (interval, date1,date2) { // 得到两日期之间间隔的秒数 timedifference = gettime(date2) - gettime(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;} ?>// 测试例d1 = "2002-01-11";d2 = date("Y-m-d",dateadd("d",15,d1));echo d1."的". datediff("d",d1,d2)."天后是d2";echo d1."的10天前是".date("Y-m-d",dateadd("d",-10,d1))."";d3 = date("Y/m/d H:i:s");echo "现在是".d3."距离2002/2/12 12:59:59还有".datediff("s",d3,"2002/2/12 12:59:59")."秒";?>
赞