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<?php function &test($a) { $empty = []; return isset($a) ? $a : $empty; } function &test2($a) { $empty = []; return ${isset($a) ? 'a' : 'empty'}; } $test =& test('123'); print_r($test); $test =& test2('123'); print_r($test); $test =& test(NULL); print_r($test); $test =& test2(NULL); print_r($test);
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Only variable references should be returned by reference in /in/42Cq9 on line 5 123123 Notice: Only variable references should be returned by reference in /in/42Cq9 on line 5 Array ( ) Array ( )

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