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Reference: What is variable scope, which variables are accessible from where and what are “undefined

...example, this function will print out the name of the user running the PHP script. The variable is available to the function without any problem. <?php function test() { echo $_ENV["user"]; } The general rule of "globals are bad" is typically amended in PHP to "globals are bad but superglo...
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Notification when a file changes?

...atcher only is able to detect events at the file system level (i.e. if the OS triggers an event). In your case Ctrl+S triggers such an event (whether that happens or not depends on the actual application though). – Dirk Vollmar Oct 26 '19 at 9:16 ...
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jQuery textbox change event doesn't fire until textbox loses focus?

... as follows : HTML: <input type="text" id="textbox" /> JS: <script type="text/javascript"> $(function () { $("#textbox").bind('input', function() { alert("letter entered"); }); }); </script> ...
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Rake just one migration

... @pedrorolo: This is not outdated. This task has no description and so it will not show up in rake -T. – Ryan Bigg Oct 12 '11 at 19:56 1 ...
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The character encoding of the HTML document was not declared

...arset="utf-8" /> <title>Voice clip upload</title> <script src="voiceclip.js"></script> </head> <body> <h2>Upload Voice Clip</h2> <form id="upload_form" enctype="multipart/form-data" method="post"> <input type="file" nam...
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django-debug-toolbar not showing up

... load itself; it will always just load. Only leave that in for testing purposes, if you forget and launch with it, all your visitors will get to see your debug toolbar too. For explicit configuration, also see the official install docs here. EDIT(6/17/2015): Apparently the syntax for the nuclear ...
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Python logging not outputting anything

In a python script I am writing, I am trying to log events using the logging module. I have the following code to configure my logger: ...
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Which Java Collection should I use?

...Standard Library container in C++11? is a handy flow chart to use when choosing C++ collections. 7 Answers ...
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Anaconda vs. EPD Enthought vs. manual installation of Python [closed]

...are interested only in Python, without other packages. Therefore better chose either EPD (now Canopy) or Anaconda. Anaconda has around 270 packages, including the most important for most scientific applications and data analysis, that is, NumPy, SciPy, Pandas, IPython, matplotlib, Scikit-learn. So...
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How do you Force Garbage Collection from the Shell?

...term web site for information about embedding this in bash/perl/ruby/other scripts. I've used popen2 in Python or open3 in Perl to do this. UPDATE: here's a one-liner using jmxterm: echo run -b java.lang:type=Memory gc | java -jar jmxterm-1.0-alpha-4-uber.jar -n -l host:port ...