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How to calculate the difference between two dates using PHP?

...s answer below You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate different time periods. $date1 = "2007-03-24"; $date2 = "2009-06-26"; $diff = abs(strtotime($date2) - strtotime($date1)); $year...
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How to allocate aligned memory only using the standard library?

I just finished a test as part of a job interview, and one question stumped me, even using Google for reference. I'd like to see what the StackOverflow crew can do with it: ...
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How to escape JSON string?

... I cannot reproduce this method for deserializing an encoded and escaped unc path. My path "WatchedPath": "\\\\myserver\\output" becomes "\"\\\\\\\\myserver\\\\output\"" which is pretty unacceptable. – slestak Dec 29 '14 at 14:36 ...
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HTML5 best practices; section/header/aside/article elements

There is enough information about HTML5 on the web (and also on stackoverflow), but now I'm curious about the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout...
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Understanding the Gemfile.lock file

After running the bundle install command, 'Gemfile.lock ' is created in the working directory. What do the directives inside that file mean? ...
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How to decorate a class?

...class? Specifically, I want to use a decorator to add a member to a class and change the constructor to take a value for that member. ...
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date format yyyy-MM-ddTHH:mm:ssZ

... The accepted answer says to use format specifier "s" and append a Z on the end for UTC dates. That's all good and fine if you don't need the milliseconds, but if you want the milliseconds you have to use "o" like this answer shows. With "o", the milliseconds show up by defaul...
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Adding one day to a date

...se fatal errors when run on your host ;) – Henrik Erlandsson Jan 13 '15 at 13:18 Don't apologize. Some people posted t...
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Pass props to parent component in React.js

... Edit: see the end examples for ES6 updated examples. This answer simply handle the case of direct parent-child relationship. When parent and child have potentially a lot of intermediaries, check this answer. Other solutions are missing the point While they still work fine, other answers are miss...
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How to find all positions of the maximum value in a list?

... 0 for this is 2n, the list is iterated through 2x, once to determine max, and another time to find the positions of the max. A for loop that tracks the current max and its position might be more efficient for really long lists. – radtek Jan 8 '15 at 18:42 ...