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Are global variables in PHP considered bad practice? If so, why?
...les aren't really global in PHP. The scope of a typical PHP program is one HTTP request. Session variables actually have a wider scope than PHP "global" variables because they typically encompass many HTTP requests.
Often (always?) you can call member functions in methods like preg_replace_callback...
Applying .gitignore to committed files
... this way:
git ls-files -v|grep '^h'
credit for the original answer to
http://blog.pagebakers.nl/2009/01/29/git-ignoring-changes-in-tracked-files/
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Open a new tab in gnome-terminal using command line [closed]
...for the solution. Though, it's not clear to me how I can execute different commands in different tabs. No matter where I add the commands they all get executed in the first tab. Can you include a solution for this?
– Calin
May 3 '11 at 21:25
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Best way to handle list.index(might-not-exist) in python?
...dex method only, because it's the only code you have there!
To answer the comment:
In Python, easier to ask forgiveness than to get permission philosophy is well established, and no index will not raise this type of error for any other issues. Not that I can think of any.
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Call one constructor from another
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@ivan_pozdeev: Yes, you can; use ?: or call a static method.
– SLaks
Oct 12 '14 at 1:17
3
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What's a reliable way to make an iOS app crash?
... works on any system I know -- in a future version of the C runtime OR the compiler this might not lead to a crash anymore. see Is null pointer dereference undefined behavior in Objective-C?)
(in swift you would have to bridge to objC to do this)
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DataContractSerializer doesn't call my constructor?
...ame = firstName + " " + lastName;
}
Please refer to microsoft guid-lines:
https://docs.microsoft.com/en-us/dotnet/standard/serialization/serialization-guidelines
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undefined reference to `WinMain@16'
...>
int main()
{
MessageBox( 0, "Blah blah...", "My Windows app!", MB_SETFOREGROUND );
}
Now let's build it using GNU toolchain (i.e. g++), no special options. Here gnuc is just a batch file that I use for that. It only supplies options to make g++ more standard:
C:\test> gnuc x.cpp
C:...
jQuery changing style of HTML element
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I raise the same Exception with a custom message in Python?
...Note that you can add whatever you like to err. For example err.problematic_array=[1,2,3].
Edit: @Ducan points in a comment the above does not work with python 3 since .message is not a member of ValueError. Instead you could use this (valid python 2.6 or later or 3.x):
try:
try:
raise...