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POPHP methods that work in both instantiated and static contexts?
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copied!<p>I'm trying to setup some PHP methods that are callable in instantiated and static contexts. What are some good ways to do this? For example I want to be able to do:</p> <pre><code>Foo::bar($item); foo($item)->bar(); </code></pre> <p>I could setup two separate classes and have each function modify the thisArg and delegate to the other, but it seems like there's got to be a better way. The only way I could think of to do it with only one class would be something like this:</p> <pre><code>function foo($item = null) { return $item instanceof Foo ? $item : new Foo($item); } class Foo { protected $wrapped; public function __construct($item = null) { $this->wrapped = $item; } public function get() { return $this->wrapped; } public function bar($item = null) { isset($this) and $item = &$this->wrapped; // do stuff with $item return isset($this) ? $this : $item; } } </code></pre> <p>If you look at the code of <a href="https://github.com/brianhaveri/Underscore.php/blob/master/underscore.php" rel="nofollow noreferrer">underscore.php</a> they do something like that. I've read some related <a href="https://stackoverflow.com/questions/2347475/php-issetthis-and-using-the-same-object-method-in-a-static-and-object-context">questions from a while back</a> which point out that using <code>isset($this)</code> to determine the context can raise a warning, but it seems to work fine...any updated thoughts on that? Another possibility is could be to make two classes, one with all static version of the methods and then a second class that uses <a href="http://www.php.net/manual/en/language.oop5.overloading.php#object.call" rel="nofollow noreferrer">__call</a> to delegate to the static method like: </p> <pre><code>class _Foo { protected $wrapped; public function __construct($item = null) { $this->wrapped = $item; } public function __call($method_name, $args) { array_unshift($args, $this->wrapped); $this->wrapped = call_user_func_array('Foo::' . $method_name, $args); return $this; } } </code></pre> <p>Ideas?</p>

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