PHP Get Time Code summary share

This article is mainly to share with you the PHP acquisition time code summary, hoping to let the small partners to PHP acquisition time has a deeper understanding and mastery.

1. <?php echo Date ("Ymd", Strtotime ("Now"), "\ n";      echo Date ("Ymd", Strtotime ("1 week Monday")), "\ n";      echo Date ("Ymd", Strtotime ("1 week Sunday")), "\ n";      echo Date ("Ymd", Strtotime ("+0 Week Monday")), "\ n";         echo Date ("Ymd", Strtotime ("+0 Week Sunday")), "\ n";      echo "********* months:";      echo Date (' n ');      echo "********* Week of the week:";      Echo Date ("W");      echo "********* Days of the Month:";      echo Date ("T");      echo "*********";    Echo ' <br> specific weeks </br> ' on last week;      echo Date (' y-m-d ', Strtotime ('-1 Monday ', $time));      Echo ' <br> last week start time:<br> ';      echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), Date ("D")-date ("W") +1-7,date ("Y")), "\ n";      echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("D")-date ("W") +7-7,date ("Y")), "\ n";      Echo ' <br> this week start time:<br> ';      echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), Date ("D")-date ("W") +1,date ("Y")), "\ n"; echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("D")-date ("W") +7,daTe ("Y"))), "\ n";      Find the start date and end date of the week from the first week $dayNumber = Date (' W ') * 7; $weekDayNumber = Date ("W", Mktime (0, 0, 0, 1, $dayNumber, date ("Y"))),//day of the current week $startNumber = $dayNumber-$weekDayN      umber; echo Date ("Y-m-d", mktime (0, 0, 0, 1, $startNumber + 1, date ("Y")));//Start date echo date ("Y-m-d", mktime (0, 0, 0, 1, $sta      Rtnumber + 7, date ("Y"));//End date echo ' <br> last month start time:<br> ';      echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M") -1,1,date ("Y")), "\ n";      echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), 0,date ("Y")), "\ n";      Echo ' <br> month start time:<br> ';      echo Date ("Y-m-d h:i:s", mktime (0, 0, 0,date ("M"), 1,date ("Y")), "\ n";         echo Date ("Y-m-d h:i:s", Mktime (23,59,59,date ("M"), Date ("T"), Date ("Y")), "\ n";      $season = Ceil ((date (' n '))/3);//month of the first quarter echo ' <br> this quarter start time:<br> ';      echo Date (' y-m-d h:i:s ', mktime (0, 0, 0, $season *3-3+1,1,date (' Y ')), "\ n"; echo Date (' y-m-d h:i:s ', Mktime (23,59,59, $season *3,date (' t ',Mktime (0, 0, 0, $season *3,1,date ("y"))), date (' Y ')), "\ n";      $season = Ceil ((date (' n '))/3) -1;//last quarter was the first quarter of ECHO ' <br> last quarter start time:<br> ';      echo Date (' y-m-d h:i:s ', mktime (0, 0, 0, $season *3-3+1,1,date (' Y ')), "\ n"; echo Date (' y-m-d h:i:s ', Mktime (23,59,59, $season *3,date (' t ', mktime (0, 0, 0, $season *3,1,date ("y"))), date (' Y ')), "\ n"  ; ?>