In order to return a reference from a function in PHP one must:
...use the reference operator & in both the function declaration and when assigning the returned value to a variable.
This ends up looking like:
function &func() { return $ref; } $reference = &func(); I am trying to return a reference from a closure. In in a simplified example, what I want to achieve is:
$data['something interesting'] = 'Old value'; $lookup_value = function($search_for) use (&$data) { return $data[$search_for]; } $my_value = $lookup_value('something interesting'); $my_value = 'New Value'; assert($data['something interesting'] === 'New Value'); I cannot seem to get the regular syntax for returning references from functions working.
