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run code in 300+ PHP versions simultaneously
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Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.23, 8.4.1 - 8.4.10
array(2) { ["a"]=> &array(1) { ["id"]=> int(1) } ["b"]=> array(1) { ["id"]=> int(2) } } array(2) { ["a"]=> &array(1) { ["id"]=> int(1) } ["b"]=> array(1) { ["id"]=> int(2) } } array(2) { ["a"]=> &NULL ["b"]=> array(1) { ["id"]=> int(2) } }

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111.58 ms | 412 KiB | 5 Q