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How can I calculate the difference between two dates?

... Not all days have 86400 seconds. For a trivial example that's fine but it's not a good idea in the real world. DST changes, leap seconds, etc can all mess with it. NSCalendar can tell you how many seconds are in a given day. ...
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Add a custom attribute to a Laravel / Eloquent model on load?

...; } } Any attributes listed in the $appends property will automatically be included in the array or JSON form of the model, provided that you've added the appropriate accessor. Old answer (for Laravel versions < 4.08): The best solution that I've found is to override the toArray() metho...
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How to create a .NET DateTime from ISO 8601 format

...standard, they seem to be able to parse only a limited subset of it. Especially it is a problem if the string contains time zone specification. (Neither it does for basic ISO8601 formats, or reduced precision formats - however this is not exactly your case.) That is why I make use of custom format s...
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Convert seconds to Hour:Minute:Second

... here you go function format_time($t,$f=':') // t = seconds, f = separator { return sprintf("%02d%s%02d%s%02d", floor($t/3600), $f, ($t/60)%60, $f, $t%60); } echo format_time(685); // 00:11:25 ...
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How can I tell jackson to ignore a property for which I don't have control over the source code?

... my entities has a GeometryCollection that throws an exception when you call "getBoundary" (the why of this is another book, for now let's say this is the way it works). ...
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How do I list the functions defined in my shell?

I can type alias to show a list of all the aliases. 8 Answers 8 ...
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Filter LogCat to get only the messages from My Application in Android?

...ssages to the log you can use adb -d logcat System.out:I *:S to show only calls to System.out. You can find all the log levels and more info here: https://developer.android.com/studio/command-line/logcat.html http://developer.android.com/reference/android/util/Log.html EDIT: Looks like I jumped t...
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The point of test %eax %eax [duplicate]

...the arguments to CMP are equal. So, TEST %eax, %eax JE 400e77 <phase_1+0x23> jumps if the %eax is zero. share | improve this answer | follow | ...
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Wait for a process to finish

... Note that lsof uses polling, that +r 1 is the timeout, I am personally looking for a solution for MacOS that does not use polling. – Alexander Mills Feb 28 '18 at 16:58 ...
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PHP expects T_PAAMAYIM_NEKUDOTAYIM?

... Not really. Test this var_dump(empty(TRUE)) – machineaddict Jun 5 '14 at 13:12 1 ...