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Check if the date is a legal date

WBOY
WBOYOriginal
2016-07-25 09:10:121074browse
Check if the date is a legal date
  1. function check_date($date) { //Check whether the date is a legal date
  2. $dateArr = explode("-", $date);
  3. if (is_numeric($dateArr[0]) && is_numeric ($dateArr[1]) && is_numeric($dateArr[2])) { //Open source OSPhP.COM.CN
  4. return checkdate($dateArr[1],$dateArr[2],$dateArr[0]);
  5. }
  6. return false;
  7. }
  8. function check_time($time) { //Check whether the time is legal time
  9. //OSPHP.COM.Cn open source
  10. $timeArr = explode(":", $time);
  11. if (is_numeric( $timeArr[0]) && is_numeric($timeArr[1]) && is_numeric($timeArr[2])) {
  12. //Open source code OSPHP.COM.Cn
  13. if (($timeArr[0] >= 0 && $timeArr[0] <= 23) && ($timeArr[1] >= 0 && $timeArr[1] <= 59) && ($timeArr[2] >= 0 && $timeArr[2] < ;= 59))
  14. //PHP open source code
  15. return true;
  16. else
  17. return false;
  18. }
  19. return false;
  20. }
  21. function DateDiff($date1, $date2, $unit = "") { //Time comparison Function, returns the difference in seconds, minutes, hours or days between two dates
  22. switch ($unit) {
  23. case 's':
  24. $dividend = 1;
  25. break;
  26. case 'i':
  27. $dividend = 60;
  28. //oSPHP.COM.CN
  29. break;
  30. case 'h':
  31. $dividend = 3600;
  32. break;
  33. case 'd':
  34. $dividend = 86400;
  35. break;
  36. default:
  37. $dividend = 86400;
  38. }
  39. $time1 = strtotime($date1);
  40. $time2 = strtotime($date2);
  41. if ($time1 && $time2) //OSPHP.com.CN
  42. return (float)($time1 - $ time2) / $dividend;
  43. return false;
  44. }
  45. ?>
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