Conversion between a PHP Timestamp and a date

In php, if you want to convert a date to a timestamp, you can directly use the strtotime function. If you want to convert a timestamp to a date, you can directly use the date () function, next I will introduce them to my friends.

The strtotime () function parses the datetime description of any English text into a Unix timestamp.

Example

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<? Php Echo (strtotime ("now ")); Echo (strtotime ("3 October 2005 ")); Echo (strtotime ("+ 5 hours ")); Echo (strtotime ("+ 1 week ")); Echo (strtotime ("+ 1 week 3 days 7 hours 5 seconds ")); Echo (strtotime ("next Monday ")); Echo (strtotime ("last Sunday ")); ?> Output: 1138614504 1128290400 1138632504 1139219304 1139503709 1139180400 1138489200

In the preceding exampleConvert a date to a timestampNow, we can also convert it to a timestamp, for example, 2013-04-21.

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$ A = date (); $ Mk = strtotime ($)

It is required that you only send text messages between-in the daytime. How can you get the daily time range?

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<? $ Y = date ("Y", time ()); $ M = date ("m", time ()); $ D = date ("d", time ()); $ Start_time = mktime (9, 0, 0, $ m, $ d, $ y ); $ End_time = mktime (19, 0, 0, $ m, $ d, $ y ); $ Time = time (); If ($ time >=$ start_time & $ time <= $ end_time) { // Do something .... } ?>

Next we will introduceTimestamp to date

Date () function,

This function not only obtains various time and date types, but also supports date conversion calling.

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<? $ Time = time (); $ Date = date ("Y-m-d", $ time ); Echo 'www. bKjia. c0m prompt '. $ date ?>

In this way, the www. bKjia. c0m prompt 2013-04-21 is output.