PHP: set class array properties with a string as the propertyname

Question

I have a class with a property that is an array:

  class NewObject {
    public $Props = array();
  }

  $obj = new NewObject();

  $obj->Props[0] = 'a';
  $obj->Props[1] = 'b';

Now I want to change the values of Props, not directly, but with a variable 'propertyname': This DOES work for single string properties but not for arrays, because the key N is interpreted as the Nth letter of the STRING 'Props' instead of the Nth value in the array!

  $propertyname = 'Props';

  $obj->$propertyname[0] ='c';   //doesnt work as expected, it tries to set $obj->P now, it seems
  $obj->$propertyname[1] ='d';

Any way to solve this ?

zerkms · Accepted Answer · 2011-05-17 01:03:29Z

5

$obj->{$propertyname}[0] ='c';

answered May 17, 2011 at 1:03

zerkms

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1 Comment

Dylan Over a year ago

Thanx...I knew about the accolade thing but only in double-quoted strings in which you want to use a variable... never seen it like this before...

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