Home >Backend Development >PHP Tutorial >PHP program to calculate the number of years, months and days between two times_PHP tutorial
Our principle for calculating the time difference is based on the definition: 1. There are 360 days in a year and 30 days in a month; 2. 86400=24*60*60 in the code represents the number of seconds in a day, so it can be calculated
The effect is as follows
The code is as follows. What needs to be explained is: 1. Define a year as 360 days and a month as 30 days; 2. 86400=24*60*60 in the code represents the number of seconds in a day; 3. These two The time must be written in a standardized format similar to 2013-07-28; 4. Extended to all PHP programs, you can change the Get_option('swt_builddate') WordPress parameter for obtaining background data into the time parameter that needs to be compared.
代码如下 | 复制代码 |
//Get detail gap of year,month and days between two different time by vfhky 20130728 $common = (time()-strtotime(get_option('swt_builddate'))); $a = floor($common/86400/360); //整数年 $b = floor($common/86400/30) - $a*12; //整数月 $c = floor($common/86400) - $a*360 - $b*30; //整数日 $d = floor($common/86400); //总的天数 echo $a."年".$b."月".$c."日(共计".$d."天)"; ?> |
Some other methods
The code is as follows
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$a_dt=getdate($a); $b_dt=getdate($b); $a_new=mktime(12,0,0,$a_dt['mon'],$a_dt['mday'],$a_dt['year']); $b_new=mktime(12,0,0,$b_dt['mon'],$b_dt['mday'],$b_dt['year']); return round(abs($a_new-$b_new)/86400); } //How many days are there between today and October 11, 2008 $date1=strtotime(time()); $date1=strtotime('10/11/2008'); $result=count_days($date1,$date2); echo $result; ?>
Example 2
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//How many days are there between today and September 9, 2008 $Date_1=date("Y-m-d"); $Date_2="2008-10-11"; $d1=strtotime($Date_1); $d2=strtotime($Date_2); $Days=round(($d2-$d1)/3600/24); echo "The difference between today and October 11, 2008".$Days."Days"; ?> http://www.bkjia.com/PHPjc/633125.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633125.htmlTechArticleOur principle for calculating the time difference is based on the definition 1. A year is 360 days and a month is 30 days; 2. Code 86400=24*60*60, represents how many seconds there are in a day, so you can calculate the effect as... |