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<?php function foo(&$elements) { $new_elements = ['baz' => 'bar']; $elements = &$new_elements; $elements['bar'] = 42; print_r($elements); } $elements = [ 'foo' => 'bar', ]; foo($elements); print_r($elements);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [baz] => bar [bar] => 42 ) Array ( [foo] => bar )

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