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How to get the client IP address in PHP [duplicate]
...d a proxy server in which case the proxy may have set the $_SERVER['HTTP_X_FORWARDED_FOR'], but this value is easily spoofed. For example, it can be set by someone without a proxy, or the IP can be an internal IP from the LAN behind the proxy.
This means that if you are going to save the $_SERVER['...
Installing multiple instances of the same windows service on a server
..., and it will give you the help entry. I think I've done this in the past for Subversion and used this article as a reference:
http://svn.apache.org/repos/asf/subversion/trunk/notes/windows-service.txt
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How to keep the console window open in Visual C++?
...rom the context menu.
Choose Configuration Properties>Linker>System.
For the "Subsystem" property in the right-hand pane, click the drop-down box in the right hand column.
Choose "Console (/SUBSYSTEM:CONSOLE)"
Click Apply, wait for it to finish doing whatever it does, then click OK. (If "Apply...
How to check if a string contains a substring in Bash
...you can reverse the comparison by just switching to != in the test. Thanks for the answer!
– Quinn Taylor
Jul 30 '09 at 17:14
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How do I read / convert an InputStream into a String in Java?
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// NB: does not close inputStream, you'll have to use try-with-resources for that
String theString = IOUtils.toString(inputStream, encoding);
Alternatively, you could use ByteArrayOutputStream if you don't want to mix your Streams and Writers
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Why don't C++ compilers define operator== and operator!=?
I am a big fan of letting the compiler do as much work for you as possible. When writing a simple class the compiler can give you the following for 'free':
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Which is faster : if (bool) or if(int)?
...helps to illuminate that when choosing a variable type, you're choosing it for two potentially competing purposes, storage space vs. computational performance.
– Triynko
Apr 27 '11 at 18:20
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Double vs. BigDecimal?
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Yep, I'm calculating the price for stock so I believe BigDecimal is useful in this case.
– Truong Ha
Aug 5 '10 at 9:51
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When do I use the PHP constant “PHP_EOL”?
...s, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
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Calc of max, or max of calc in CSS
...n math expressions, that means you can avoid calc() when using them.
Therefore the original example can be written as:
max-width: max(500px, 100% - 80px);
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