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Do AJAX requests retain PHP Session info?

...I had a user logged onto my site, having his id stored in $_SESSION , and from his browser he clicked a 'Save' button which would make an AJAX request to the server. Will his $_SESSION and cookies be retained in this request, and can I safely rely on the id being present in the $_SESSION ? ...
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How do I delete unpushed git commits?

... From my experience, this does not undo the commit from the original branch, thus necessitating the git reset --hard HEAD~1 afterwards. I think using reset --soft then switching branches and committing again would have saved ...
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Token Authentication vs. Cookies

...kie in every response back to the client. This means the next request made from the client will include this cookie and will thus be recognized by the server. This way the server can maintain a session with the stateless client, knowing mostly everything about the app's state, but stored in the serv...
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Vagrant's port forwarding not working [closed]

...nstead of just more comments. First thing: try curl 'http://localhost:80' from within the VM. If that doesn't work, then it's definitely not the port forwarding. Next: try curl -v 'http://localhost:4567/' from your host machine. Curl might give you a better error message than Safari. I'd check ...
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What's the difference between a single precision and double precision floating point operation?

..., cache, and bandwidth, thereby reducing the overall system performance. From Webopedia: The term double precision is something of a misnomer because the precision is not really double. The word double derives from the fact that a double-precision number uses twice as many bits as a regular ...
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How do I calculate percentiles with python/numpy?

...ues. Note N MUST BE already sorted. @parameter percent - a float value from 0.0 to 1.0. @parameter key - optional key function to compute value from each element of N. @return - the percentile of the values """ if not N: return None k = (len(N)-1) * percent f = m...
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How do you rename a MongoDB database?

... How is this different from the solution provided by the OP? – Salvador Dali Apr 3 '14 at 3:26 6 ...
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What is an optional value in Swift?

From Apple's documentation : 13 Answers 13 ...
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How can I safely create a nested directory?

... On Python ≥ 3.5, use pathlib.Path.mkdir: from pathlib import Path Path("/my/directory").mkdir(parents=True, exist_ok=True) For older versions of Python, I see two answers with good qualities, each with a small flaw, so I will give my take on it: Try os.path.exist...
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Why does an SSH remote command get fewer environment variables then when run manually? [closed]

...hell is either a login shell or an interactive shell. Description follows, from man bash: A login shell is one whose first character of argument zero is a -, or one started with the --login option. An interactive shell is one started without non-option argument...