3v4l.org

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Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.17, 8.4.1 - 8.4.4
array ( 'A' => array ( 'group' => 'A', 'Ann' => 19, 'Cam' => 32, ), 'B' => array ( 'group' => 'B', 'Bea' => 26, 'Des' => 24, ), )

preferences:
103.49 ms | 411 KiB | 5 Q