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<?php $x = new stdClass(); $y = new StdClass(); $x-> a = 10; $y->x = $x; $j = json_encode($y); $j2 = json_decode($j); var_dump($j2); var_dump((array) $j2); $j3 = json_decode($j, true); var_dump($j3);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
object(stdClass)#4 (1) { ["x"]=> object(stdClass)#3 (1) { ["a"]=> int(10) } } array(1) { ["x"]=> object(stdClass)#3 (1) { ["a"]=> int(10) } } array(1) { ["x"]=> array(1) { ["a"]=> int(10) } }

preferences:
84.55 ms | 407 KiB | 5 Q