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<?php $name = 'test'; $test = array( 'test' => array( 'val' ) ); $x = &$test[$name]; $x = array( 'val2' ); var_dump( $test );
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array(1) { ["test"]=> &array(1) { [0]=> string(4) "val2" } }