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--TEST--
Return value separation

--FILE--
<?php
function test1(&$abc) : string {
	return $abc;
}

function &test2(int $abc) : string {
	return $abc;
}

function &test3(int &$abc) : string {
	return $abc;
}

$a = 123;

var_dump(test1($a));
var_dump($a);
var_dump(test2($a));
var_dump($a);
var_dump(test3($a));
var_dump($a);

?>
--EXPECTF--
string(3) "123"
int(123)
string(3) "123"
int(123)
string(3) "123"
string(3) "123"