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<?php $data = ['users' => [ ['id' => 1, 'name' => 'Alice', 'active' => true], ['id' => 2, 'name' => 'Bob', 'active' => false], ]]; $filtered = []; foreach ($data['users'] as $key => $user) { if ($user['id'] % 2 === 0) { $filtered[$key] = ['id' => $user['id']]; } } var_export($filtered);
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array ( 1 => array ( 'id' => 2, ), )

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