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<?php $a = (object)[]; for ($x = 0; $x < 2; ++$x) { /*if (!property_exists($a, 'color')) { $a->color = (object)[]; }*/ $a->color->price = ($a->color->price ?? "2") . "5"; } var_export($a);

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108.77 ms | 1519 KiB | 5 Q