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Best way to allow plugins for a PHP application
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You could use an Observer pattern. A simple functional way to accomplish this:
<?php
/** Plugin system **/
$listeners = array();
/* Create an entry point for plugins */
function hook() {
global $listeners;
$num_args = func_num_args();
$args = func_get_args();
if($...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
What are all the common undefined behaviours that a C++ programmer should know about?
11 Answers
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What techniques can be used to define a class in JavaScript, and what are their trade-offs?
.../ alerts "Howdy, my name is Bob"
Now the real answer is a whole lot more complex than that. For instance, there is no such thing as classes in JavaScript. JavaScript uses a prototype-based inheritance scheme.
In addition, there are numerous popular JavaScript libraries that have their own style...
What can MATLAB do that R cannot do? [closed]
I often hear people complain how expensive MATLAB licenses are. Then I wonder why they don't just use Octave or R . But is the latter right? Can you use R to replace MATLAB?
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How to loop over files in directory and change path and add suffix to filename
... the text files in /Data (including the /Data/ part)
$( ... ) runs a shell command and inserts its output at that point in the command line
basename somepath .txt outputs the base part of somepath, with .txt removed from the end (e.g. /Data/file.txt -> file)
If you needed to run MyProgram with ...
How can I use pointers in Java?
...leo = new Lion();
Tiger tony = (Tiger)leo; // Always illegal and caught by compiler.
Animal whatever = new Lion(); // Legal.
Tiger tony = (Tiger)whatever; // Illegal, just as in previous example.
Lion leo = (Lion)whatever; // Legal, object whatever really is a Lion.
Pointers in C:
void main()...
What is Bootstrap?
...Googling, but found nothing specific. Everything I found is related to the computer science definition.
9 Answers
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Get last n lines of a file, similar to tail
...d version of the code above and came up with this recipe: code.activestate.com/recipes/577968-log-watcher-tail-f-log
– Giampaolo Rodolà
Nov 29 '11 at 19:32
6
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...size. Making apps that have this property is called responsive design.
A common approach to responsive design is to build apps that include multiple layouts and multiple images to accommodate different screen sizes and resolutions. This gives good results, but it makes more work for developers. ...
Explain Morris inorder tree traversal without using stacks or recursion
...s with its right subtree, which is B.
B prints itself, and then current becomes X, which goes through the same checking process as Y did, also realizing that its left subtree has been traversed, continuing with the Z. The rest of the tree follows the same pattern.
No recursion is necessary, becaus...