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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...included code as applies to any other code: only functions separate scope. For the purpose of scope, you may think of including files like copy and pasting code:
c.php
<?php
function myFunc() {
include 'a.php';
echo $foo; // works
}
myFunc();
echo $foo; // doesn't work!
In the a...
Best way to do multi-row insert in Oracle?
I'm looking for a good way to perform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn't seem to be supported in Oracle.
...
How to know if two arrays have the same values
I have these two arrays: one is filled with information from an ajax request and another stores the buttons the user clicks on. I use this code (I filled with sample numbers):
...
Can iterators be reset in Python?
...gesting itertools.tee, but that's ignoring one crucial warning in the docs for it:
This itertool may require significant
auxiliary storage (depending on how
much temporary data needs to be
stored). In general, if one iterator
uses most or all of the data before
another iterator starts,...
What does the PHP error message “Notice: Use of undefined constant” mean?
...age = mysql_real_escape_string($_POST['message']);
As is, it was looking for constants called department, name, email, message, etc. When it doesn't find such a constant, PHP (bizarrely) interprets it as a string ('department', etc). Obviously, this can easily break if you do defined such a cons...
Check if PHP session has already started
... session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
...
When should I use ugettext_lazy?
I have a question about using ugettext and ugettext_lazy for translations.
I learned that in models I should use ugettext_lazy , while in views ugettext.
But are there any other places, where I should use ugettext_lazy too? What about form definitions?
Are there any performance diffrences betwe...
How should I call 3 functions in order to execute them one after the other?
...ed.
Asynchronous Functions
Asynchronous function, however, will not wait for each other. Let us look at the same code sample we had above, this time assuming that the functions are asynchronous
doSomething();
doSomethingElse();
doSomethingUsefulThisTime();
The functions will be initialized in o...
Can I create links with 'target=“_blank”' in Markdown?
...ld!</a>
Most Markdown engines I've seen allow plain old HTML, just for situations like this where a generic text markup system just won't cut it. (The StackOverflow engine, for example.) They then run the entire output through an HTML whitelist filter, regardless, since even a Markdown-only ...
Difference between JSON.stringify and JSON.parse
...
Can also be used a simple object copy for object key value pairings.
– hunterc
Nov 21 '13 at 20:36
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