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create table persons ( id int primary key, name varchar(64), age tinyint ); insert into persons values (10, 'Alice', 18), (20, 'Bob', 22);
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<?php $data = [ ['id' => '3202','total' => '5'], ['id' => '3190','total' => '2'], ['id' => '3199','total' => '5'] ]; $total_column = array_column($data, 'total'); $sum = array_sum($total_column); printf('The sum of total column: %s', $sum);
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