3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 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 ( '2011-04-11' => 10, '2011-06-28' => 10, '2011-09-26' => 20, '2012-01-02' => 30, '2012-05-12' => 30, )
preferences:
123.85 ms | 412 KiB | 5 Q