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How to get last key in an array?

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How can I convert a DateTime to the number of seconds since 1970?

I'm trying to convert a C# DateTime variable to Unix time, ie, the number of seconds since Jan 1st, 1970. It looks like a DateTime is actually implemented as the number of 'ticks' since Jan 1st, 0001. ...
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How to get past the login page with Wget?

I am trying to use Wget to download a page, but I cannot get past the login screen. 9 Answers ...
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Concatenate text files with Windows command line, dropping leading lines

I need to concatenate some relatively large text files, and would prefer to do this via the command line. Unfortunately I only have Windows, and cannot install new software. ...
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Ruby / Rails - Change the timezone of a Time, without changing the value

I have a record foo in the database which has :start_time and :timezone attributes. 11 Answers ...
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How do you use a variable in a regular expression?

I would like to create a String.replaceAll() method in JavaScript and I'm thinking that using a regex would be most terse way to do it. However, I can't figure out how to pass a variable in to a regex. I can do this already which will replace all the instances of "B" with "A" . ...
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Coalesce function for PHP?

... a coalesce function (returns the first non-NULL value, example ). PHP, sadly in 2009, does not. 9 Answers ...
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Regular Expression to match string starting with “stop”

How do I create a regular expression to match a word at the beginning of a string. We are looking to match stop at the beginning of a string and anything can follow it. ...
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java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing

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How do I generate a stream from a string?

I need to write a unit test for a method that takes a stream which comes from a text file. I would like to do do something like this: ...