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phpvariablesobjectobject-properties

Access static object property through variable name


I know its possible to access an object property/method using a variable as its name

ex.:

$propName = 'something';
$something = $object->$propName;

Is it possible to do the same w/ constants or static properties?

I've tried:

$constName = 'MY_CONST';

MyCLass::{$constName};

and

$obj::{$constName};

But nothing seems to work and I couldn't find it anywhere.


Solution

  • Use: Class::$$constName, this is similar to normal variable variables.

    Demo:

    <?php    
    class MyClass {
        public static $var = 'A';
    }
    $name = 'var';
    echo MyClass::$$name; // echoes 'A'
    

    Constants can be access with the constant function:

    constant('MyClass::'.$constantName)