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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code

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<?php $data = ['balance' => [ ['id' => 1, 'balance' => 10], ['id' => 1, 'balance' => 30], ['id' => 1, 'balance' => 50], ['id' => 2, 'balance' => 66], ] ]; $res = array_reduce ( $data['balance'], function($res, $el) { $res[$el['id']] += $el['balance']; return $res; }, [] ); print_r($res);
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