call_user_func_array doesn't always pass fake references, but when it does, it drinks Dos Equis beer.

gistfile1.php

<?php
ini_set('display_errors', '1');
error_reporting(E_ALL | E_STRICT);

class testRef {
	function test (&$parm1, &$parm2) {
		echo '<br>In testRef::test(), param1: '.$parm1;
		echo '<br>In testRef::test(), param2: '.$parm2;
	}
}


$t = new testRef();

print 'Calling with call_user_func_array: call_user_func_array(array($t, "test"), array("three", "four"))<br>';
print 'Result: ';
call_user_func_array(array($t, "test"), array("three", "four"));


print '<br><br>';

print 'Calling directly: $t->test("value", "value!")<br>';
print 'Result: ';
$t->test("value", "value!");


/* output 

Calling with call_user_func_array: call_user_func_array(array($t, "test"), array("three", "four"))
Result:
In testRef::test(), param1: three
In testRef::test(), param2: four

Calling directly: $t->test("value", "value!")
Result: Fatal error: Cannot pass parameter 1 by reference in /usr/web/grcmc/chris/test.php on line 26 

*/

?>