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<?php $arr1 = ["1st Desc","2nd Desc","3rd Desc"]; $arr2 =["100.10","10.50","39.99"]; $expected = []; foreach($arr1 as $k=>$v){ $expected[$k] = ['description'=>$v,'amount'=>$arr2[$k]]; } echo json_encode($expected,JSON_PRETTY_PRINT); ?>

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