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How to use strtotime function in PHP

Jul 25, 2016 am 09:08 AM

How to use the strtotime function in PHP ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​                  
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There is a function called strtotime in PHP. strtotime implementation function: get the timestamp of a certain date, or get the timestamp of a certain time. strtotime parses the date and time description of any English text into a Unix timestamp [convert system time into a unix timestamp]
First, get the unix timestamp of the specified date
  1. strtotime("2009-1-22") Examples are as follows:
  2. 1.echo strtotime("2009-1-22")
  3. Result: 1232553600
  4. Description: Return the timestamp of 0:00:00 on January 22, 2009
  5. Second, get the English text date and time
  6. The example is as follows:
  7. For comparison, use date to convert the current timestamp and the specified timestamp into system time
  8. (1) Print the timestamp at this time tomorrow strtotime("+1 day")
  9. Current time:
  10. 1.echo date("Y-m-d H:i:s",time())
  11. Result: 2009-01-22 09:40:25
  12. Specified time:
  13. 1.echo date("Y-m-d H:i :s",strtotime("+1 day"))
  14. Result: 2009-01-23 09:40:25
  15. (2) Print the timestamp of yesterday at this time strtotime("-1 day")
  16. Current time:
  17. 1.echo date("Y-m-d H:i:s",time())
  18. Result: 2009-01-22 09:40:25
  19. Specified time:
  20. 1.echo date( "Y-m-d H:i:s",strtotime("-1 day"))
  21. Result: 2009-01-21 09:40:25
  22. (3) Print the timestamp at this time next week strtotime( "+1 week")
  23. Current time:
  24. 1.echo date("Y-m-d H:i:s",time())
  25. Result: 2009-01-22 09:40:25
  26. Specified time :
  27. 1.echo date("Y-m-d H:i:s",strtotime("+1 week"))
  28. Result: 2009-01-29 09:40:25
  29. (4) Print last week The timestamp at this time strtotime("-1 week")
  30. Current time:
  31. 1.echo date("Y-m-d H:i:s",time())
  32. Result: 2009-01-22 09: 40:25
  33. Specified time:
  34. 1.echo date("Y-m-d H:i:s",strtotime("-1 week"))
  35. Result: 2009-01-15 09:40:25
  36. (5) Print the timestamp of the specified day of the week strtotime("next Thursday")
  37. Current time:
  38. 1.echo date("Y-m-d H:i:s",time())
  39. Result: 2009- 01-22 09:40:25
  40. Specified time:
  41. 1.echo date("Y-m-d H:i:s",strtotime("next Thursday"))
  42. Result: 2009-01-29 00:00 :00
  43. (6) Print the timestamp of the specified day of the week strtotime("last Thursday")
  44. Current time:
  45. 1.echo date("Y-m-d H:i:s",time())
  46. Result: 2009-01-22 09:40:25
  47. Specified time:
  48. 1.echo date("Y-m-d H:i:s",strtotime("last Thursday"))
  49. Result: 2009-01- 15 00:00:00
  50. As can be seen from the above example, strtotime can parse the date and time description of any English text into a Unix timestamp. We combine mktime() or date() to format the date and time to obtain the specified timestamp to achieve what is needed. date and time.
  51. I hope that after the introduction of this article, you can master the usage of strtotime function.
  52. Copy code
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