PHP - Concatenate object class name

Question

Is is possible to concatenate an object's name? The below doesn't seem to work..

Trying to call $node->field_presenter_en;

$lang = 'en';

$node->field_presenter_.$lang;

${$node->field_presenter_.$lang};

Thanks!

Answer 1

Try:

$field_presenter = 'field_presenter_'.$lang;
$node->$field_presenter;

This is called variable variables. More information here: http://php.net/manual/en/language.variables.variable.php

Edit: The user nickb has suggested a much more elegant solution below, and I will incorporate into this answer for easier reading (nickb: please let me know if you want me to remove this):

$node->{'field_presenter_'.$lang}

Answer 2

$field_presenter = 'field_presenter_'.$lang;
$node->$field_presenter;