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How can I write to the console in PHP?
... Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.
http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/
Chrome
Howev...
How do I replace whitespaces with underscore?
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Replacing spaces is fine, but I might suggest going a little further to handle other URL-hostile characters like question marks, apostrophes, exclamation points, etc.
Also note that the general consensus among SEO experts is that dashes are preferred to underscores in URLs.
import re
def urli...
Two-dimensional array in Swift
I get so confused about 2D arrays in Swift. Let me describe step by step. And would you please correct me if I am wrong.
8 ...
What does flushing the buffer mean?
I am learning C++ and I found something that I can't understand:
3 Answers
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Convert Decimal to Double
...in VB.NET because it implicitly does any casts, while C# has both implicit and explicit ones.
In C# the conversion from decimal to double is explicit as you lose accuracy. For instance 1.1 can't be accurately expressed as a double, but can as a decimal (see "Floating point numbers - more inaccurate...
Who is listening on a given TCP port on Mac OS X?
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On macOS High Sierra and later, use this command:
lsof -nP -iTCP:$PORT | grep LISTEN
or to just see just IPv4:
lsof -nP -i4TCP:$PORT | grep LISTEN
On older versions, use one of the following forms:
lsof -nP -iTCP:$PORT | grep LISTEN
lsof -...
Multiple inheritance/prototypes in JavaScript
... false,
}));
}
Explanation
A proxy object consists of a target object and some traps, which define custom behavior for fundamental operations.
When creating an object which inherits from another one, we use Object.create(obj). But in this case we want multiple inheritance, so instead of obj I ...
Changing CSS Values with Javascript
...sy to set inline CSS values with javascript. If I want to change the width and I have html like this:
9 Answers
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How can I export tables to Excel from a webpage [closed]
...s to Excel from a webpage. I want the export to contain all the formatting and colours.
14 Answers
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How to set the margin or padding as percentage of height of parent container?
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The fix is that yes, vertical padding and margin are relative to width, but top and bottom aren't.
So just place a div inside another, and in the inner div, use something like top:50% (remember position matters if it still doesn't work)
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