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How to check if mysql database exists
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* OK, apparently PHPMyAdmin just displays all database names in lower case, and your query works using both anyway
– Hubro
Jun 15 '12 at 13:21
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Convert string to variable name in JavaScript
...ss true. Javascript does not have variable variables (such as $$varname in php) so this really is the only answer. Using window[varname] has the side-effect of introducing global variables, which might not be wanted. @Shaz I don't think you give modern JS interpreters enough credit. They are extreme...
Maximum length of the textual representation of an IPv6 address?
I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...
What's the difference between tag and release?
...ed with some additional information (identity of the creator of the tag, a description, a GPG signature, ...).
A tag is a git concept whereas a Release is GitHub higher level concept.
As stated in the official announcement post from the GitHub blog: "Releases are first-class objects with changelog...
In c++ what does a tilde “~” before a function name signify?
...destructor, it destroys the instance, frees up memory, etc. etc.
Here's a description from ibm.com:
Destructors are usually used to deallocate memory and do other cleanup for a class object and its class members when the object is destroyed. A destructor is called for a class object when that obje...
new DateTime() vs default(DateTime)
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One could argue that default(DateTime) is more descriptive of the programmer's intent, therefore more favorable usually.
– intrepidis
Jul 8 '15 at 9:34
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Use JSTL forEach loop's varStatus as an ID
...se any of these:
JSTL c:forEach varStatus properties
Property Getter Description
current getCurrent() The item (from the collection) for the current
round of iteration.
index getIndex() The zero-based index for the current round of
iteration.
count getCount() The one-based c...
How to query MongoDB with “like”?
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In PHP, you could use following code:
$collection->find(array('name'=> array('$regex' => 'm'));
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Tainted canvases may not be exported
..."anonymous" ...)
Install a webserver on your development computer (IIS and PHP web servers both have free editions that work nicely on a local computer).
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Where does mongodb stand in the CAP theorem?
... more detailed explanation.
Scenario | Main Focus | Description
---------------------------|------------|------------------------------------
No partition | CA | The system is available
| | and provides s...