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How to calculate the difference between two dates using PHP?

... Use this for legacy code (PHP < 5.3). For up to date solution see jurka'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 rathe...
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Generate random numbers using C++11 random library

As the title suggests, I am trying to figure out a way of generating random numbers using the new C++11 <random> library. I have tried it with this code: ...
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How to get HTTP response code for a URL in Java?

Please tell me the steps or code to get the response code of a particlular URL. 12 Answers ...
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Paste a multi-line Java String in Eclipse [duplicate]

Unfortunately, Java has no syntax for multi-line string literals. No problem if the IDE makes it easy to work with constructs like ...
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Postgresql: Scripting psql execution with password

... There are several ways to authenticate to PostgreSQL. You may wish to investigate alternatives to password authentication at https://www.postgresql.org/docs/current/static/client-authentication.html. To answer your question, there are a few ways provi...
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How do I make my string comparison case insensitive?

... The best would be using s1.equalsIgnoreCase(s2): (see javadoc) You can also convert them both to upper/lower case and use s1.equals(s2) share | ...
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Why would I ever use push_back instead of emplace_back?

C++11 vectors have the new function emplace_back . Unlike push_back , which relies on compiler optimizations to avoid copies, emplace_back uses perfect forwarding to send the arguments directly to the constructor to create an object in-place. It seems to me that emplace_back does everything p...
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Bash script to calculate time elapsed

I am writing a script in bash to calculate the time elapsed for the execution of my commands, consider: 10 Answers ...
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./

... The regular expression for this is really simple. Just use a character class. The hyphen is a special character in character classes, so it needs to be first: /[-!$%^&*()_+|~=`{}\[\]:";'<>?,.\/]/ You also need to esca...
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Call a Server-side Method on a Resource in a RESTful Way

Keep in mind I have a rudimentary understanding of REST. Let's say I have this URL: 8 Answers ...