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php calendar code efficient calendar code implemented in php

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2016-07-25 08:56:052553browse
  1. /*

  2. * php calendar function
  3. * edit: bbs.it-home.org
  4. */
  5. @date_default_timezone_set('RPC');

  6. function show_calender(){

  7. $starttime=microtime();

  8. //Processing request date

  9. $y= isset($_GET["y"]) ? intval($ _GET["y"]) : date("Y");
  10. $m= isset($_GET["m"]) ? intval($_GET["m"]) : date("m");
  11. if ($m<1 || $m>12)$m=date("m");
  12. if($y<=0)$y=date("Y");

  13. $nm=$m+1;
  14. if($nm>12){
  15. $nm=1;
  16. $ny=$y+1;
  17. }else{
  18. $ny=$y;
  19. }

  20. //Previous month

  21. $pm=$m-1;
  22. if($pm<1){
  23. $pm=12;
  24. $py=$y-1;
  25. }else{
  26. $py=$y;
  27. }

  28. //Get the name of this month

  29. $month = date("M",mktime(0, 0, 0, $m, 1, $y));

  30. //Get the last day of this month

  31. $lastday = date("d",mktime(0, 0, 0, $nm, 0, $ny) );

  32. //Get the day of the week when the day starts

  33. $index = date("w",mktime(0, 0, 0, $m, 1, $y));< /p>
  34. //Generate calendar header

  35. echo "nn";

  36. //Processing calendar

  37. $row=0 ;
  38. $day=1;
  39. while(1){
  40. echo "
  41. ";
  42. if($row==0){
  43. for($i=0;$i<=6;$i++)
  44. if($i<$index)
  45. echo "
  46. ";
  47. else
  48. echo "
  49. ";
  50. }else{
  51. for($i=0;$i<=6;$i++)
  52. if($day>$lastday)
  53. echo "
  54. ";
  55. else
  56. echo "";
  57. }
  58. echo "
  59. ";
  60. $row++;
  61. if($day>$lastday)break;
  62. }
  63. echo "
  64. $endtime=microtime();

  65. $usedtime=$endtime-$starttime;
  66. return $usedtime;
  67. }

  68. $run_info= array();

  69. for($i=0;$i<10;$i++)
  70. $run_info[]=show_calender();

  71. print_r($run_info);

  72. ?>

  73. Copy code

    Test results:

    Array ( [0] => 0.00038400000000005 [1] => 0.00030999999999998 [2] => 0.000296999999999999 [3] => 0.000303 [4] => 0.00030399999999997 [5] => 0.00034499999999998 [6] => 0.00032300000000002 [7] => 0.00033 [8] => 0.00032699999999997 [9] => 0.00032000000000004 )

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  74. - {$y} {$month} +
    DayOneTwoThreeFour< ;/td>fivesix
      ".$day++."  


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