Whether PHP date (' W ') is reversible

Source: Internet
Author: User
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$week = Date (' W ');

function ($year, $week) return time of Monday;

Simultaneous solution

Date ("W", Strtotime (' 2011-1-1 ')) why not 1

Date ("W", Strtotime (' 2013-1-1 ')) why is 1

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Ask for a

$week = Date (' W ');

function ($year, $week) return time of Monday;

Simultaneous solution

Date ("W", Strtotime (' 2011-1-1 ')) why not 1

Date ("W", Strtotime (' 2013-1-1 ')) why is 1

W is to show the first weeks, starting from Monday said. January 1, 2011 is six, not the 1th week, January 1, 2013 is Monday two, of course, 1th Week ~

In addition, you want to go back to a week of Monday for a direct use

 
 

Yes, you can see strtotime, the official manual has detailed instructions.

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