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@ 2013-04-23T10:25:50Z

<?php
class Foo
{
	/**
     * @param callable $callback
     * @return Rocket_Auth_Adapter_Interface
     */
    public function registerAuthCallback($callback)
    {
        $this->authCallback = $callback;
    }

    /**
     * @param Zend_Auth_Result $result
     * @return Zend_Auth_Result
     */
    public function authCallback(Zend_Auth_Result $result)
    {
        $successCallback = $this->authCallback;
        if (is_callable($successCallback)) {
            $result = $successCallback($result);
        }

        return $result;
    }
}

class Bar
{
    public function callback(Zend_Auth_Result $result)
    {
        echo 'herewego ';
    }
}

class Zend_Auth_Result
{
}

function my_callback(Zend_Auth_Result $result) {
    echo ' here we go (plain function)';
}


$foo = new Foo();
$bar = new Bar();
$foo->registerAuthCallback('my_callback');
$result = new Zend_Auth_Result();
$foo->authCallback($result);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Creation of dynamic property Foo::$authCallback is deprecated in /in/0SbQB on line 10 here we go (plain function)

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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