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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?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);