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<?php $fruits = ['apple', 'orange', 'melon', 'banana', 'pineapple']; echo json_encode($fruits, JSON_PRETTY_PRINT) . "\n"; foreach ($fruits as $key=>$fruit) { if (in_array($fruit, ['apple', 'orange', 'melon', 'banana'])) { unset($fruits[$key]); } } echo json_encode($fruits, JSON_PRETTY_PRINT) . "\n"; $fruits = array_values($fruits); echo json_encode($fruits, JSON_PRETTY_PRINT) . "\n";