Because the job needs to get last month, next month, this month's date, special from the website found the implementation code, special sharing, easy to use friends
Write the program today, suddenly found a long time to write a long time to get the number of days of the function, the classic switch version, but to get the number of days last month, I just put the month-1, it was too sleepy, then saw a kind of creepy feeling, would like to deal with again, But I think there is something super convenient way, so found the following version, made a little change. Get this month's date: The code is as follows: function GetMonth ($date) {$firstday = date ("y-m-01", Strtotime ($date)), $lastday = Date ("y-m-d", Strtotime ( "$firstday +1 month-1 Day"); Return Array ($firstday, $lastday); } $firstday is the first day of the month, if the year is 2014-2, then the $firstday will be 2014-02-01, then according to the $firstday plus one months is 2014-03-01, minus one day is 2014-02-28, It's so convenient to use date () and Strtotime (). Get last month Date: Code as follows: function Getlastmonthdays ($date) {$timestamp =strtotime ($date), $firstday =date (' y-m-01 ', strtotime (date (' Y ', $timestamp). ' -'. (Date (' m ', $timestamp)-1). ' -01 ')); $lastday =date (' y-m-d ', Strtotime ("$firstday +1 month-1 Day"); Return Array ($firstday, $lastday); Last month's date requires a timestamp, then 1 on the month, and the Super Smart Date () will convert 2014-0-1 to 2013-12-01. Get next month's date: code as follows: function Getnextmonthdays ($date) {$timestamp =strtotime ($date); $arr =getdate ($timestamp); if ($arr [' Mon ' ] = = {$year = $arr [' year '] +1; $month = $arr [' mon '] -11; $firstday = $year. '-0 '. $month. '-01 '; $lastday =date (' y-m-d ', Strtotime ("$firstday +1 month-1 Day"); }else{$firstday =date (' y-m-01 ', strtotime (date (' Y ', $timestamp). -'. (Date (' m ', $timestamp) +1). ' -01 ')); $lastday =date (' y-m-d ', Strtotime ("$firstday +1 month-1 Day"); } return Array ($firstday, $lastday);} The code for the next month's date looks a bit longer because date () doesn't go like this 2014-13-01, it will go straight back to 1970, so we need to deal with the problem of December, except for December the direct month +1 is OK. Generally speaking, it is very convenient, the date function is too powerful.
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