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What is the copy-and-swap idiom?
...t's a terrible thing.
In our case, the core of it is only two lines (the allocation and the copy), but with more complex resources this code bloat can be quite a hassle. We should strive to never repeat ourselves.
(One might wonder: if this much code is needed to manage one resource correctly, wh...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...t even managed languages provide a finally-block despite resources being deallocated automatically by the garbage collector anyway?
Actually, languages based on Garbage collectors need "finally" more. A garbage collector does not destroy your objects in a timely manner, so it can not be relied upo...
How can I iterate over an enum?
...
Except now you've actually allocated memory when an enum, provided it is zero-indexed and strictly continous, can do that task without allocating memory.
– Cloud
Jan 17 '14 at 23:02
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Why should I use version control? [closed]
...t can be local and doesn't have to be on the web for anyone to see? I use php designer, I love it and it has integration for Tortoise SVN, not sure if that is a good one
– JasonDavis
Sep 11 '09 at 0:50
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What is the best way to prevent session hijacking?
...nt != $_SESSION['ident'])
{
end_session();
header("Location: login.php");
// add some fancy pants GET/POST var headers for login.php, that lets you
// know in the login page to notify the user of why they're being challenged
// for login again, etc.
}
What this does is capture ...
Can JavaScript connect with MySQL?
...
No, JavaScript can not directly connect to MySQL. But you can mix JS with PHP to do so.
JavaScript is a client-side language and your MySQL database is going to be running on a server
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How to set my phpmyadmin user session to not time out so quickly? [duplicate]
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To increase the phpMyAdmin Session Timeout, open config.inc.php in the root phpMyAdmin directory and add this setting (anywhere).
$cfg['LoginCookieValidity'] = <your_new_timeout>;
Where <your_new_timeout> is some number larger...
How to minify php page html output?
I am looking for a php script or class that can minify my php page html output like google page speed does.
13 Answers
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`static` keyword inside function?
... found some things I hadn't seen before. I did some initial looking in the php manual, but it didn't explain these examples.
...
Convert SVG image to PNG with PHP
... and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color each state as needed, something like*/
$idColorArray = array(
"AL" =>...