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POAlternatives to static methods in a framework PHP
 

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    <p>Lately I have been trying to create my own PHP framework, just to learn from it (As we may look into some bigger and more robust framework for production). One design concept I currently have, is that most core classes mainly work on static functions within classes.</p> <p>Now a few days ago, I've seen a few articles about "Static methods are death to testability". This concerned me as.. yeah.. my classes contain mostly static methods.. The main reason I was using static methods is that a lot of classes would never need more than one instance, and static methods are easy to approach in the global scope. Now I'm aware that static methods aren't actually the best way to do things, I'm looking for a better alternative.</p> <p>Imagine the following code to get a config item:</p> <pre><code>$testcfg = Config::get("test"); // Gets config from "test" echo $testcfg-&gt;foo; // Would output what "foo" contains ofcourse. /* * We cache the newly created instance of the "test" config, * so if we need to use it again anywhere in the application, * the Config::get() method simply returns that instance. */ </code></pre> <p>This is an example of what I currently have. But according to some articles, this is bad. <br/> Now, I could do this the way how, for example, CodeIgniter does this, using:</p> <pre><code>$testcfg = $this-&gt;config-&gt;get("test"); echo $testcfg-&gt;foo; </code></pre> <p>Personally, I find this harder to read. That's why I would prefer another way.</p> <p><strong>So in short</strong>, I guess I need a better approach to my classes. I would not want more than one instance to the config class, maintain readability and have easy access to the class. Any ideas?</p> <p>Note that I'm looking for some best practice or something including a code sample, not some random ideas. Also, if I'm bound to a $this->class->method style pattern, then would I implement this efficiently?</p>
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    1. CORemi: @Elias said it all in his answer, but for your ->get() part... have you considered implementing the `ArrayAccess` interface, which would then allow you to use your class as if it was an array?
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    2. CO@SébastienRenauld, actually not. I've read a little about it a few days ago but I guess I should see and try how it works. If you could give me a quick summary of it, what exactly does it do?
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    3. CO@Remi-X: Pretty easy: `class Foo implements ArrayAccess`, and [read the docs of the interface](http://php.net/manual/en/class.arrayaccess.php). Everything _listed_ in the interface must be implemented in the class, and you're good to go
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