PHP Specifies date data with Strtotime or mktime (this week, last week, month, month, quarter)

Strtotime Definitions and usage

The strtotime () function resolves the date-time description of any English text to a Unix timestamp.

Grammar

Strtotime (time,now) parameter description
Time to specify the string to parse.
Now is the time stamp used to calculate the return value. If this argument is omitted, the current time is used.

Cases

The code is as follows

Copy Code

echo Date ("Y-m-d", Strtotime ("Now")), "<br/>"; echo Date ("Y-m-d", Strtotime ("-1 week Monday"), "<br/>"; From the recent Monday echo Date ("Y-m-d", Strtotime ("-1 week Sunday"), "<br/>"; It's the latest weekend. echo Date ("Y-m-d", Strtotime ("+0 Week Monday"), "<br/>"; The coming Monday echo Date ("Y-m-d", Strtotime ("+0 Week Sunday"), "<br/>"; The coming weekend echo Date ("n");//months Echo Date ("W")//week of week echo Date ("T");//Days of the Month echo "<br/> last week: <br/>";

mktime function

The Mktime () function returns a Unix timestamp for a date.

The parameter always represents the GMT date, so IS_DST has no effect on the result.

The parameters can be left-to-right, and the empty arguments will be set to the appropriate current GMT value.

Grammar

Mktime (HOUR,MINUTE,SECOND,MONTH,DAY,YEAR,IS_DST)

Cases

The code is as follows

Copy Code

echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), Date ("D")-date ("W") +1-7,date ("Y")), "<br/>"; echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("D")-date ("W") +7-7,date ("Y")), "<br/>"; echo "<br> this week:<br>"; echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), Date ("D")-date ("W") +1,date ("Y")), "<br/>"; echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("D")-date ("W") +7,date ("Y")), "<br/>"; echo "<br> last month:<br>"; echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M") -1,1,date ("Y")), "<br/>"; echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), 0,date ("Y")), "<br/>"; echo "<br> this month:<br>"; echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), 1,date ("Y")), "<br/>"; echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("T"), Date ("Y")), "<br/>"; $getMonthDays = Date ("T", mktime (0, 0, 0,date ("n") + (date ("n")-1)%3,1,date ("Y")); echo "<br> this quarter:<br>"; echo Date (' y-m-d h:i:s ', mktime (0, 0, 0,date (' n ')-(date (' n ')-1)%3,1,date (' Y ')), "<br/>"; echo Date (' y-m-d h:i:s ', Mktime (23,59,59,date (' n ') + (date (' n ')-1)%3, $getMonthDays, date (' Y ')), "<br/>"; $jdtoday = GREGORIANTOJD (Date (' n '), date (' J '), date (' Y ')); $offset = Jddayofweek ($jdtoday)-1; For ($i =0-$offset; $i <7-$offset; $i + +) { $date = Strtotime ($i. ' Days '); Echo (' <th> '. Date (' D ', $date). " /'. Date (' N-j ', $date). ' </th> '); } ?>

Parameters	Description
Hour	Optional. Set hours.
Minute	Optional. Specify minutes.
Second	Optional. Specified seconds.
Month	Optional. A month that is specified in numbers.
Day	Optional. Stipulated day.
Year	Optional. Set year. On some systems, the legal value is between 1901-2038. However, there is no such limit in PHP 5.
Is_dst	Optional. If time is in daylight saving time (DST), set to 1, otherwise set to 0, if unknown, set to-1. Since 5.1.0, IS_DST parameters have been discarded. Therefore, you should use the new time zone processing attributes.