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<?php $names = '{"3":"test","4":"exam"}'; $quantities = '{"3":"12","4":"19"}'; var_export( (function($name, $quantity) { $result = []; foreach (get_defined_vars() as $k => $row) { foreach ($row as $i => $v) { $result[$i][$k] = $v; } }; return ['final' => $result]; })(json_decode($names, true), json_decode($quantities, true)) );
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array ( 'final' => array ( 3 => array ( 'name' => 'test', 'quantity' => '12', ), 4 => array ( 'name' => 'exam', 'quantity' => '19', ), ), )

preferences:
81.1 ms | 406 KiB | 5 Q