Online PHP editor | refs for 5ojUk

<?php function foo(&$a, $b) { $a = 'AA'; $b = 'BB'; } $a = 'A'; $b = 'B'; call_user_func_array('foo', array(&$a, $b)); assert($a === 'AA'); assert($b === 'B'); $a = 'A'; $b = 'B'; call_user_func_array('foo', array(&$a, &$b)); assert($a === 'AA'); assert($b === 'B'); $a = 'A'; $b = 'B'; call_user_func('foo', $a, $b); assert($a === 'A'); assert($b === 'B');