Access static object property through variable nam

2019-02-24 04:53发布

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.

3条回答
放荡不羁爱自由
2楼-- · 2019-02-24 05:15

This works for me:

<?php
class Test {
  public static $nombre = "pepe";

  public function __construct() {
    return self;
  }
}

$varName = "nombre";
echo Test::${$varName};
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冷血范
3楼-- · 2019-02-24 05:19

You can use the constant function:

constant('bar::'. $const);
constant("$obj::". $const); //note the double quote 
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SAY GOODBYE
4楼-- · 2019-02-24 05:23

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)
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