Source Code:
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<?php $records = [ [ 'id' => 2135, 'first_name' => 'John', 'last_name' => 'Doe', ], [ 'id' => 3245, 'first_name' => 'Sally', 'last_name' => 'Smith', ], [ 'id' => 5342, 'first_name' => 'Jane', 'last_name' => 'Jones', ], [ 'id' => 5623, 'first_name' => 'Peter', 'last_name' => 'Doe', ], ]; $names = array_column($records, 'first_name', 'id'); print_r($names);
Result:
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