PHP - Factory Pattern And Autoloading.

So I was stumbling around with Repositories and Interfaces and got a decent grasp on it. However, I started running into abstraction and started to implement a little bit of the Factory design.   How often is this typically used? It seems like I should be using  Factory with 90% of my Repositories since there are different types of Items, Tutorials, Random Events, etc.   Items - Food - Weapon - Toy   Tutorials - Newbie - Farming   Random Events - Coin Giving - Item Giving - Item Draining   Things like this... so all of them have similar methods involved. So they each have a base method, for example.. an Item child class would always have the use() method and a factory would determine which kind of object to initiate from your controller just from the item model being passed through. So therefore you can call use() on the repository instance it returns. Then I was moving onto my tutorials and random events and it just seemed very similar.   So in most cases, will factories be a huge plus? Just wanted some general opinions from the PHP developers =) Thanks!

Hi All,    I've been interested in writing a PHP pdo configuration file so that I can include connections in various files on my site. While I was looking up some possible solutions I stumbled across an interesting post on stack overflow http://stackoverflow...-pdo-connection   The first responder suggested the code below. However, I don't understand how to access the connection and make query calls. I'm confused by how it's possible to return a variable name as an object { return new $name( $this->connection ) }.   Also, If someone could explain what the author means by  { $something = $factory->create('Something');}. Wouldn't the "Something" need to be a class? And how would that class get the db connection?    All the best,    Karma 

$provider = function()
{
    $instance = new PDO('mysql:......;charset=utf8', 'username', 'password');
    $instance->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $instance->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
    return $instance;
};

class StructureFactory
{
    protected $provider = null;
    protected $connection = null;

    public function __construct( callable $provider )
    {
        $this->provider = $provider;
    }

    public function create( $name)
    {
        if ( $this->connection === null )
        {
            $this->connection = call_user_func( $this->provider );
        }
        return new $name( $this->connection );
    }
}

$factory = new StructureFactory( $provider );
$something = $factory->create('Something');
$foobar = $factory->create('Foobar');

Hey guys.  So I'm trying to write a script that replaces footnote citations in one format with footnote citations in another format.

For example, the text will read:   "Then he went down the street.[1] That is where the police found him [2].  They immediately arrested him at the house. [3]"

And I would like the script to find the [ #] strings and replace them with {#} ... so that the string reads:
"Then he went down the street.{1} That is where the police found him {2}.  They immediately arrested him at the house. {3}"

Note that there will be double, and even tripple, digit footnotes, so the script has to be able to recognize [##] or [###] and replace the brackets with {} accordingly.

I'm not really sure how to do this, since the "pattern" is constantly changing depending on the number between the brackets.  Ideas?

Thanks!

hey guy I've just recently re-altered my autoloader class which works with namespaces but it also calls classes which aren't namespaced, like so:

$class = new myclass();

instead of

$class = new Class\Myclass;

im wondering have i defeated the whole point of namespacing and if all my classes should actually be namespaced   hope its not such a pointless question

Hallo, I have a strange problem with a freshly installed composer project that is not loading the dependencies as the documentation states it should.

I just made a new directory (www/site/test/), which has a index.php file, and I want to be able to use composer-installed dependencies from within the index.php file, inside the test folder; is this the wrong way to do it?

Do I need to place my project root somewhere else for it to work?

Dependencies are installed like this:

composer require phpmailer/phpmailer

For some strange reason, the autoloader is not loading the dependencies, and I simply get a class not found, without any explanation as to why it was not found. The thing is, I can get it to work by resorting to crazy hackery like: new PHPMailer\PHPMailer\PHPMailer()

But the documentation clearly states that I should be able to do new PHPMailer() - hope this makes sense.

This is what I have in my index.php:
 

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

// define('BASE_PATH', rtrim(preg_replace('#[/\\\\]{1}#', '/', realpath(dirname(__FILE__))), '/') . '/');


// require BASE_PATH . 'vendor/autoload.php';
require __DIR__ . '/vendor/autoload.php';

 

Edited June 23, 2020 by JacobSeated