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What's the difference between SoftReference and WeakReference in Java?
...object is phantomly referenced after it has been finalized, but before its allocated memory has been reclaimed.
Source
Analogy: Assume a JVM is a kingdom, Object is a king of the kingdom, and GC is an attacker of the kingdom who tries to kill the king(object).
When King is Strong, GC can not k...
Is Fortran easier to optimize than C for heavy calculations?
...ers will most likely return that struct in sret form with the caller stack allocating space, passing a pointer to the callee that fills it in. That is several times slower than returning multiple values in registers as a Fortran compiler would. Note that C99 fixed this in the special case of complex...
Turn a number into star rating display using jQuery and CSS
...
(source: ulmanen.fi)
Demo
http://www.ulmanen.fi/stuff/stars.php
This will probably suit your needs. With this method you don't have to calculate any three quarter or whatnot star widths, just give it a float and it'll give you your stars.
A small explanation on how the stars are ...
View a list of recent documents in Vim
...le names as you open/edit them in Vim.
http://www.vim.org/scripts/script.php?script_id=521
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how to get last insert id after insert query in codeigniter active record
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Using the mysqli PHP driver, you can't get the insert_id after you commit.
The real solution is this:
function add_post($post_data){
$this->db->trans_begin();
$this->db->insert('posts',$post_data);
$item_id = $this->db...
Default argument values in JavaScript functions [duplicate]
in PHP:
6 Answers
6
...
Difference between a SOAP message and a WSDL?
...rks such as the Internet. In other words, Windows applications can talk to PHP, Java and Perl applications and many others, which in normal circumstances would not be possible.
How Do Web Services Work?
Because different applications are written in different programming languages, they often c...
How to get config parameters in Symfony2 Twig Templates
...te a parameterTwig function:
{{ parameter('jira_host') }}
TwigExtension.php:
class TwigExtension extends \Twig_Extension
{
public $container;
public function getFunctions()
{
return [
new \Twig_SimpleFunction('parameter', function($name)
{
...
LAST_INSERT_ID() MySQL
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It would be possible to save the last_id_in_table1 variable into a php variable to use it later?
With this last_id I need to attach some records in another table with this last_id, so I need:
1) Do an INSERT and get the last_id_in_table1
INSERT into Table1(name) values ("AAA");
SET @l...
Why do we need private subnet in VPC?
...ince you need half as many subnets, you could choose to use a smaller CIDR allocation for your VPC or you could make bigger subnets with the same size VPC. And fewer subnets means you'll be paying less for inter-AZ traffic as well.
So, why don't we do this? Why does AWS say the best practice is to ...