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PHP: How to remove all non printable characters in a string?
...the relative differences. Up to 512 chars, I was seeing preg_replace alway win. In the 1-8kb range, str_replace had a marginal edge.
I thought it was interesting result, so including it here. The important thing is not to take this result and use it to decide which method to use, but to benchmark ...
Advantage of switch over if-else statement
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This immediate-constant bitmap is a big win, because there's no cache miss on the bitmap. It works if the "special" error codes are all in a range 64 or less. (or 32 for legacy 32bit code.) The compiler subtracts the smallest case value, if it's non-zero. The t...
How to get the CPU Usage in C#?
... (@"\\"+ selectedServer +@"\root\CIMV2",
"SELECT * FROM Win32_PerfFormattedData_PerfOS_Processor WHERE Name=\"_Total\"");
ManagementObjectCollection collection = searcher.Get();
ManagementObject queryObj = collection.Cast<ManagementObject>().First();
...
How do you convert a byte array to a hexadecimal string, and vice versa?
... faster than {IEnumerable}.Aggregate, for instance, but BitConverter still wins.
Update (2012-04-03)
Added Mykroft's SoapHexBinary answer to analysis, which took over third place.
Update (2013-01-15)
Added CodesInChaos's byte manipulation answer, which took over first place (by a large margin on...
Sublime as default editor
...e a way to set Sublime Text as the default text editor for file formats on Windows 7?
10 Answers
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How do I get the localhost name in PowerShell?
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On Windows 10 Enterprise, env:COMPUTERNAME produced the following error: env:COMPUTERNAME : The term 'env:COMPUTERNAME' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of...
How to find if a native DLL file is compiled as x64 or x86?
...lag and its the first file header listed.
dumpbin /headers cv210.dll
64-bit
Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file cv210.dll
PE signature found
File Type: DLL
FILE HEADER VALUES
8664 machine (x6...
Android Studio installation on Windows 7 fails, no JDK found
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+1 This MOSTLY worked for me. I am running 64 bit windows and JDK 1.7.0. I tried adding both JDK_HOME and JAVA_HOME with "c:\Program Files\Java\jdk1.7.0\". It still would not load. However, I capitalized the "C" and removed the trailing slash and it works now: "C:\Progr...
Eclipse JUNO doesn't start
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I had to delete both of the following files as suggested in other answers to solve my issue,
.metadata/.plugins/org.eclipse.core.resources/.snap
.metadata/.plugins/org.eclipse.e4.workbench/workbench.xmi
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Error “The connection to adb is down, and a severe error has occurred.”
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Ok I solved my issue. I go to Task Manager in windows7 -> processes -> selected the adb.exe -> End Process. After that I go to cmd prompt and type adb start-server. This time adb statred succefully. I run eclipe and it was showing no error.
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