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@ 2014-06-01T23:11:46Z

<?php
class foo {
    
    public function setConfigParam( $sName, $sValue )
    {
        if ( isset( $this->$sName ) ) {
            $this->$sName = $sValue;
        } else {
            $this->_aConfigParams[$sName] = $sValue;
        }
    }
    
    function __construct() {

        $this->a = "hello";
        $this->b = "hi";
        $this->val = "howdy";

        $val = "a";
        echo $this->{$val}; // outputs "hello"

        echo "\n";

        $val = "b";
        echo $this->{$val}; // outputs "hi"

        echo "\n";
        echo $this->val; //outputs "howdy"

        echo "\n";
        echo $this->{"val"};

        $this->setConfigParam('aVariableName', array('one', 'two', 'three'));

        echo $this->aVariableName;
    }

    

    


}



$foo = new foo();

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Creation of dynamic property foo::$a is deprecated in /in/ZNG0D on line 15 Deprecated: Creation of dynamic property foo::$b is deprecated in /in/ZNG0D on line 16 Deprecated: Creation of dynamic property foo::$val is deprecated in /in/ZNG0D on line 17 hello hi howdy howdy Deprecated: Creation of dynamic property foo::$_aConfigParams is deprecated in /in/ZNG0D on line 9 Warning: Undefined property: foo::$aVariableName in /in/ZNG0D on line 35

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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