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File: yield_const_by_ref_error.phpt

--TEST--
A notice is thrown when yielding a constant value by reference
--FILE--
<?php

function &gen() {
    yield "foo";
}

$gen = gen();
var_dump($gen->current());

?>
--EXPECTF--
Notice: Only variable references should be yielded by reference in %s on line %d
string(3) "foo"