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What is function overloading and overriding in php?
...at method.
In PHP, you can only overload methods using the magic method __call.
An example of overriding:
<?php
class Foo {
function myFoo() {
return "Foo";
}
}
class Bar extends Foo {
function myFoo() {
return "Bar";
}
}
$foo = new Foo;
$bar = new Bar;
echo($foo->...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...imization we should probably embrace them.
Quoting n3055:
An lvalue (so-called, historically,
because lvalues could appear on the
left-hand side of an assignment
expression) designates a function or
an object. [Example: If E is an
expression of pointer type, then *E
is an lvalue expression ref...
How to create a private class method?
...n that private is NOT an access/visibility modifier, but actually a method call (with the class as its recipient) as discussed here... there's no such thing as "a private section" in Ruby.
To define private instance methods, you call private on the instance's class to set the default visibility for...
How to get CRON to call in the correct PATHs
I'm trying to get cron to call in the correct PATHs. When I run a Python script from shell the script runs fine as it uses the PATHs set in bashrc but when I use cron all the PATHs are not used from bashrc. Is there a file I can enter the PATHs into for cron like bashrc or a way to call the PATHs fr...
Forking vs. Branching in GitHub
...f you can add collaborators, then forking is not needed. they can rebase locally then merge on the target branch, and then push directly to one central repo, instead of having to manage two central repo (the original one and the fork). The rebase would be about the same, but with an extra indirectio...
What is the $? (dollar question mark) variable in shell scripting? [duplicate]
... In bash, the return value of a program is stored in a special variable
called $?.
This illustrates how to capture the return value of a program, I
assume that the directory dada does not exist. (This was also
suggested by mike)
#!/bin/bash
cd /dada &> /dev/null
...
Git Push Error: insufficient permission for adding an object to repository database
...
Repair Permissions
After you have identified and fixed the underlying cause (see below), you'll want to repair the permissions:
cd /path/to/repo.git
sudo chgrp -R groupname .
sudo chmod -R g+rwX .
find . -type d -exec chmod g+s '{}' +
Note if you want ever...
How to sort mongodb with pymongo
...es key and direction as parameters.
So if you want to sort by, let's say, id then you should .sort("_id", 1)
For multiple fields:
.sort([("field1", pymongo.ASCENDING), ("field2", pymongo.DESCENDING)])
share
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...
How can I pass a parameter to a setTimeout() callback?
...topicId gets changed after the timeout was set, but before the function is called?
– pilau
Nov 2 '12 at 0:19
...
What is the overhead of creating a new HttpClient per call in a WebAPI client?
...ent?
Is it better to have one instance of the HttpClient for multiple calls?
7 Answers
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