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How to use strtotime function in PHP

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2016-07-25 09:08:421074browse
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:
  3. 1.echo strtotime("2009-1-22")
  7. Result: 1232553600
  9. Description: Return the timestamp of 0:00:00 on January 22, 2009
  11. Second, get the English text date and time
  13. The example is as follows:
  15. For comparison, use date to convert the current timestamp and the specified timestamp into system time
  17. (1) Print the timestamp at this time tomorrow strtotime("+1 day")
  19. Current time:
  20. 1.echo date("Y-m-d H:i:s",time())
  24. Result: 2009-01-22 09:40:25
  26. Specified time:
  27. 1.echo date("Y-m-d H:i :s",strtotime("+1 day"))
  31. Result: 2009-01-23 09:40:25
  33. (2) Print the timestamp of yesterday at this time strtotime("-1 day")
  35. Current time:
  36. 1.echo date("Y-m-d H:i:s",time())
  40. Result: 2009-01-22 09:40:25
  42. Specified time:
  43. 1.echo date( "Y-m-d H:i:s",strtotime("-1 day"))
  47. Result: 2009-01-21 09:40:25
  49. (3) Print the timestamp at this time next week strtotime( "+1 week")
  51. Current time:
  52. 1.echo date("Y-m-d H:i:s",time())
  56. Result: 2009-01-22 09:40:25
  58. Specified time ：
  59. 1.echo date("Y-m-d H:i:s",strtotime("+1 week"))
  63. Result: 2009-01-29 09:40:25
  65. (4) Print last week The timestamp at this time strtotime("-1 week")
  67. Current time:
  68. 1.echo date("Y-m-d H:i:s",time())
  72. Result: 2009-01-22 09: 40:25
  74. Specified time:
  75. 1.echo date("Y-m-d H:i:s",strtotime("-1 week"))
  79. Result: 2009-01-15 09:40:25
  81. (5) Print the timestamp of the specified day of the week strtotime("next Thursday")
  83. Current time:
  84. 1.echo date("Y-m-d H:i:s",time())
  88. Result: 2009- 01-22 09:40:25
  90. Specified time:
  91. 1.echo date("Y-m-d H:i:s",strtotime("next Thursday"))
  95. Result: 2009-01-29 00:00 :00
  97. (6) Print the timestamp of the specified day of the week strtotime("last Thursday")
  99. Current time:
  100. 1.echo date("Y-m-d H:i:s",time())
  104. Result: 2009-01-22 09:40:25
  106. Specified time:
  107. 1.echo date("Y-m-d H:i:s",strtotime("last Thursday"))
  111. Result: 2009-01- 15 00:00:00
  113. 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.
  115. I hope that after the introduction of this article, you can master the usage of strtotime function.
  119. Copy code
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